Schneider Electric MicroLogic 5 Power Pact and Frame Circuit Breakers
Product Information
Specifications
- Product Name: PowerPacT H-, J-, and L-Frame Circuit Breakers
- Trip Units: MicroLogic 5 or 6
- Manufacturer: Schneider Electric
- Release Date: 08/2024
- Website: www.se.com
Product Usage Instructions
Preventative Maintenance
It is essential to perform regular maintenance on the PowerPacT circuit breakers to ensure optimal performance. Follow these steps:
- Refer to the maintenance instructions provided using the Trip Units.
- Check the maintenance indicators regularly for any alerts or issues.
- Manage the installed devices as per the guidelines provided.
Maintenance Indicators
The maintenance indicators provide important information about the status of the circuit breakers. Regularly monitor and address any indicated issues promptly.
Circuit Breaker Communication Network Options
Explore various communication options available for the circuit breakers:
- Understand Circuit Breaker Communication.
- Learn about Maintenance Indicators related to communication.
- Access History and Time-Stamped Information for insights.
Alarms
Be familiar with the alarm systems and how to respond to different alarm situations effectively.
EcoStruxure Power Commission (EPC) Software
Utilize the EPC Software for function setting and management:
- Configure Function Settings as required.
- Learn the process of using the EPC Software efficiently.
FAQ
- Q: What should I do if I encounter a maintenance indicator alert?
A: When you see a maintenance indicator alert, refer to the user manual for troubleshooting steps. If needed, contact customer support for assistance. - Q: Can I install additional devices to the circuit breakers?
A: Yes, you can install additional devices following the management guidelines provided in the user manual to ensure compatibility and safety.
Preventative Maintenance for PowerPacT H-, J-, and L-Frame Circuit Breakers with
MicroLogic 5 or 6 Trip Units
Instruction Bulletin
0611DB1205
Release date 08/2024
Legal Information
The information provided in this document contains general descriptions, technical characteristics and/or recommendations related to products/solutions.
This document is not intended as a substitute for a detailed study or operational and site-specific development or schematic plan. It is not to be used for determining suitability or reliability of the products/solutions for specific user applications. It is the duty of any such user to perform or have any professional expert of its choice
(integrator, specifier or the like) perform the appropriate and comprehensive risk analysis, evaluation and testing of the products/solutions with respect to the relevant specific application or use thereof.
The Schneider Electric brand and any trademarks of Schneider Electric SE and its subsidiaries referred to in this document are the property of Schneider Electric SE or its subsidiaries. All other brands may be trademarks of their respective owner.
This document and its content are protected under applicable copyright laws and provided for informative use only. No part of this document may be reproduced or transmitted in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise), for any purpose, without the prior written permission of Schneider Electric.
Schneider Electric does not grant any right or license for commercial use of the document or its content, except for a non-exclusive and personal license to consult it on an “as is” basis.
Schneider Electric reserves the right to make changes or updates with respect to or in the content of this document or the format thereof, at any time without notice.
To the extent permitted by applicable law, no responsibility or liability is assumed by Schneider Electric and its subsidiaries for any errors or omissions in the informational content of this document, as well as any non-intended use or misuse of the content thereof.
Safety Information
Read these instructions carefully and look at the equipment to become familiar with the device before trying to install, operate, service, or maintain it. The following special messages may appear throughout this bulletin or on the equipment to warn of hazards or to call attention to information that clarifies or simplifies a procedure.
The addition of either symbol to a “Danger” or “Warning” safety label indicates that an electrical hazard exists which will result in personal injury if the instructions are not followed.
This is the safety alert symbol. It is used to alert you to personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death.
DANGER
DANGER indicates a hazardous situation which, if not avoided, will result in death or serious injury.
WARNING indicates a hazardous situation which, if not avoided, could result in death or serious injury.
CAUTION indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.
NOTICE is used to address practices not related to physical injury.
Please Note
Electrical equipment should be installed, operated, serviced, and maintained only by qualified personnel. No responsibility is assumed by Schneider Electric for any consequences arising out of the use of this material.
A qualified person is one who has skills and knowledge related to the construction, installation, and operation of electrical equipment and has received safety training to recognize and avoid the hazards involved. Electrical equipment should be transported, stored, installed, and operated only in the environment for which it is designed.
Section 1– Introduction
Maintenance Using Trip Units
MicroLogic™ 5 and 6 electronic trip units offers monitoring of alarms, quality indicators and maintenance indicators. This makes it possible to:
- Identify overloaded equipment
- Perform predictive maintenance
- Time-stamped historical logs allow analysis of system operation
- Pre-alarms allow early detection of potential events
- Local or remote alarm of events allow quick analysis and action
- Preventative maintenance
- Log of maintenance operations, including contact wear, operating hours, and load profiles
Maintenance Indicators
MicroLogic A and E trip units have indicators for, among others, the number of operating cycles, contact wear and operating times (operating hours counter) of the PowerPacT™ H-, J-, and L-frame circuit breakers.
It is possible to assign an alarm to the operating cycle counter to plan maintenance. The various indicators can be used together with the trip histories to analyze the level of stresses the device has been subjected to. The information provided by the indicators cannot be displayed on the MicroLogic trip unit LCD. It is displayed on the PC through the communication network.
When the MicroLogic trip unit, with or without a front display module, is connected to a communication network, all information can be accessed using a PC with the appropriate software installed.
Two types of time-stamped event tables
- Protection settings
- Minimums / maximums
Display of alarms and tables
The time-stamped history and event tables may be displayed on a PC through the communication network.
Embedded memory
MicroLogic A and E trip units have a non-volatile memory that saves all data on alarms, histories, event tables, counters and maintenance indicators even if power is lost.
Management of Installed Devices
Each circuit breaker equipped with a MicroLogic 5 or 6 trip unit can be identified using the communication network:
- serial number
- firmware version
- hardware version
- device name assigned by the user.
This information together with that previously described provides a clear view of the state of the installed devices.
- Contact wear
Each time PowerPacT H-, J-, and L-frame circuit breakers open, the MicroLogic 5 / 6 trip unit measures the interrupted current and increments the contact-wear indicator as a function of the interrupted current, according to test results stored in memory. Breaking under normal load conditions results in a very slight increment. The indicator value may be read on the front display module. It provides an estimation of contact wear calculated on the basis of the cumulative forces affecting the circuit breaker. When the indicator reaches 80%, it is advised to replace the circuit breaker to ensure the availability of the protected equipment. - Circuit breaker load profile
MicroLogic 5 / 6 trip units calculate the load profile of the circuit breaker protecting a load circuit. The profile indicates the percentage of the total operating time at four current levels (% of In):- 0 to 49% In
- 50 to 79% In
- 80 to 89% In
- ≥ 90% In
- This information can be used to optimize use of the protected devices or to plan ahead for expansion.
Section 2– Display Options
Front Display Module Functions (FDM121)
The front display module (FDM121) can be integrated in the PowerPacT H-, J-, and L-frame circuit breaker system. It uses the sensors and processing capacity of the MicroLogic trip unit to display measurements, demand, power quality and maximum/minimum values along with alarms, histories, and maintenance indicators.
Display of MicroLogic Trip Unit Measurements and Alarms
The FDM121 is intended to display MicroLogic 5 / 6 trip unit measurements, alarms and operating information. It cannot be used to modify the protection settings. Measurements may be easily accessed through a menu.
All user-defined alarms are automatically displayed. The display mode depends on the priority level selected during alarm set-up:
- high priority: a pop-up window displays the time-stamped description of the alarm and the orange LED flashes
- medium priority: the orange Alarm LED goes steady on l
- low priority: no display on the screen.
All faults resulting in a trip automatically produce a high-priority alarm, without any special settings required. In all cases, the alarm history is updated.
If power to the FDM121 fails, all information is stored in the MicroLogic trip unit non-volatile memory. The data can be consulted using the communication network when power is restored.
Status Indications and Remote Control
When the circuit breaker is equipped with the BSCM module, the FDM121 display can also be used to view circuit breaker status conditions:
- Auxiliary switch (OF): ON/OFF
- Alarm switch (SD): trip indication
- Overcurrent trip switch (SDE): fault-trip indication (overload, short- circuit, ground fault)
Screens
Main menu
When powered up, the FDM121 screen automatically displays the ON/OFF status of the device.
When not in use, the screen is not backlit. Backlighting can be activated by pressing one of the buttons. It goes off after 3 minutes.
Fast Access to Essential Information
Quick viewprovides access to five screens that display a summary of essential operating information (I, V, f, P, E, THD, circuit breaker On / Off).
Quick view
Access to Detailed Information
- Metering can be used to display the measurement data (I, U-V, f, P, Q, S, E, THD, PF) with the corresponding min/max values.
- Alarms displays active alarms and the alarm history
- Services provides access to the operation counters, energy and maximum reset function, maintenance indicators, identification of modules connected to the internal bus and FDM121 internal settings (language, contrast, etc.)
Metering Sub-Menu
Services
Alarm Indication
- Alarms display on the FDM121 according to their order of occurrence. The last active alarm to occur replaces the previous alarm, even if it is still active or has not been acknowledged.
- Alarms are recorded in the alarm history.
- Alarm indication on the display depends on their priority level.
Table 1 – Alarm Indication Priority Level
| Priority | Real-Time Indication | History | Alarm Clearance from the Display |
| High | • LED blinking
• Pop-up screen |
Yes | Press the Clear key to stop the LED blinking and clear the pop- up screen. |
| Medium | LED steady ON | Yes | View the alarm history to turn the LED off. |
| Low | — | Yes | — |
| None | — | No | — |
NOTE: Clear the indication of successive high-priority alarms by pressing the Clear key a number of times in succession (the number of times corresponds to the number of active alarms) in reverse chronological order of their occurrence. View the alarm history to clear the indication of all medium-priority alarms.
Alarm Pop-up Screen
An Alarm pop-up screen appears when a high-priority alarm occurs Alarm Pop-Up Screen Example
- Alarm number in order of occurence
- Number of alarms recorded in the FDM121
- Alarm name
- Alarm code
- Date of occurence of the alarm
- Symbol for occurence of the alarm
- Alarm occurence time, in hours, minutes, seconds, and milliseconds
- Clear key for clearning the alarm pop-up screen displayed
Alarm History Screen
Alarm History Screen Example
- Screen number
- Total number of screens in the alarm history
- Alarm name
- Alarm code
- Event date
- Event type
- Event time, in hours, minutes, seconds, and milliseconds
- Navigation keys
Services Menu
The Services menu provides access to the:
- Reset energy meters and measurement minimum and maximum values mode
- FDM121 contrast and brightness setting
- Maintenance indicators (operation counters, load profile, and so on.)
- Intelligent functional unit product identification information
- Language selection for the FDM121 screens
Table 2 – Maintenance Screens Available
Section 3— Circuit Breaker Communication Network Options
Circuit Breaker Communication
PowerPacT™ H-, J, and L-frame circuit breakers with MicroLogic™ trip units can be integrated into a communication network created using Modbus™ protocol. Use data transmitted by the communication network to provide supervision and monitoring for an installation.
This communication network offers the options of:
- Reading remotely:
- The circuit breaker status
- Measurements
- Operating assistance information
- Controlling the circuit breaker remotely
For more information about the Modbus communication network, refer to the specific circuit breaker user manual.
For more information about the communication network, refer to the MasterPacT and PowerPacT UL/ANSI ULP System — Installation and User Guide.
Remote readout of the circuit breaker status is accessible by all circuit breakers equipped with a BSCM. The following data is available using the communication network:
- Open/closed position (OF)
- Trip indicator (SD)
- Electrical fault indicator (SDE)
For more information, refer to the bulletin shipped with the circuit breaker.
Access the measurement readout with MicroLogic 5 and 6 trip units. For more information about measurements, refer to the EPC Online Help.
Access the operating assistance readout with MicroLogic 5 and 6 trip units. The following operating assistance information is available:
- Protection and alarm settings (see )
- History and tables of time-stamped events (more information is available in the help menu within EPC).
- Maintenance indicators (see Maintenance Indicators, page 6)
The circuit breaker remote control is accessible by any circuit breaker with a MicroLogic trip unit, a BSCM, and a communicating motor mechanism. The following commands are available using the communication network:
- Circuit breaker opening
- Circuit breaker closing
- Circuit breaker reset
For more information, refer to the bulletin shipped with the circuit breaker.
Maintenance Indicators
BSCM Counters
The counters embedded in the BSCM generate information relating to the number of volt-free contact operations. These volt-free contacts qualify:
- The number of open/close operations (OF contact) and open on fault operations (SD and SDE contacts) on the PowerPacT H-, J-, or L-frame circuit breaker
- The number of close, open, and reset operations on the motor mechanism
Access the maintenance counters embedded in the MicroLogic trip unit with the communication option.
- Counters are assigned to each type of protection:
- Long time protection
- Short-time protection
- Ground-fault protection
- Jam motor protection
- Phase unbalance protection
- Long start motor protection
- Underload motor protection
- Ten counters are assigned to the alarms associated with measurements. These counters reset if the alarm is reconfigured.
- One counter indicates the number of operating hours. This counter is updated every 24 hours.
- Four counters are assigned to the load profile: Each counts the number of operating hours per loading section (for example, one counter indicates the number of operating hours for the loading section 50–79% of In. Six counters are assigned to the temperature section (for example, one counter indicates the number of operating hours for the temperature section 140–165°F (60–74°C).
- Use maintenance counters to enter quantitative information about operations performed on the MicroLogic trip unit (such as the number of push to trip tests) or the status of the MicroLogic trip units (such as the number of Err screens or protection setting lock/unlock operations).
- One counter indicates the amount of wear on the circuit breaker contacts as a percentage. When this figure reaches 100%, the contacts must be changed.
History and Time-Stamped Information
History
MicroLogic trip units generate three types of history:
- History of alarms associated with measurements (the last ten alarms are recorded)
- History of trips (the last 18 trips are recorded)
- History of maintenance operations (the last ten operations are recorded)
Time-Stamped Information
Time-stamped information displays dates for important information such as previous protection settings and minimum/maximum current, voltage, and network frequency values.
The table of time-stamped information describes:
- The previous protection configurations and corresponding dates
- The minimum and maximum voltage measurement values and corresponding dates
- The maximum current measurement values and corresponding dates
- The minimum and maximum network frequencies and corresponding dates
The time when the minimum and maximum values were reset is also available.
Section 4 — Alarms
Alarms Associated with Measurements
Alarms Associated with Measurements
MicroLogic 5 and 6 trip units monitor measurements using:
- One or two pre-alarms (depending on the type of trip unit) assigned to:
- Long-time protection (PAL Ir) for the MicroLogic 5 trip unit
- Long-time protection (PAL Ir) and ground-fault protection (PAL Ig) for the MicroLogic 6 trip unit
By default, these alarms are active.
Ten alarms defined by the user as required. The user assigns each of these alarms to a measurement.
By default, these alarms are not active.
All the alarms associated with measurements are accessible:
- Using the communication network
- On the Front Display Module (FDM121)
The alarms associated with measurements can be assigned to an SDx Module output.
Alarm Setup
Select user-defined alarms and set their functions using the EPC software under the Alarms tab.
Alarm setup consists of:
- Selecting the alarm priority level
- Setting the alarm activation thresholds and time delays
The alarm description tables indicate for each of the alarms:
- The setting range (thresholds and time delays)
- The default setting values.
Alarm Priority Level
Each alarm is assigned a priority level:
- High priority
- Medium priority
- Low priority
- No priority
Alarm indication on the Front Display Module (FDM121) depends on the alarm priority level.
The user sets the priority level of each alarm, according to the urgency of the action required.
By default, alarms are medium priority, except for alarms associated with operating indicators which are low priority.
Alarm Activation Conditions
An alarm associated with a measurement is activated when:
- Values rise above the measurement pickup threshold for overvalue conditions
- Values drop below the measurement pickup threshold for undervalue conditions
- Values equal to the measurement pickup threshold for equality conditions
The EPC software predetermines the type of monitoring.
Overvalue Condition
Activation of the alarm on an overvalue condition is determined using two thresholds and two time delays.
Undervalue Condition
Activation of the alarm on an undervalue condition is determined using two thresholds and two time delays.
Equality Condition
The alarm is activated when the associated monitored quantity equals the pickup threshold.
The alarm is deactivated when the associated monitored quantity is different from the pickup threshold.
Alarm activation is determined using the pickup/drop-out thresholds.
Management of Time Delays (Overvalue or Undervalue Conditions)
The alarm time delays are managed by two counters that are normally at 0. For the pickup threshold, the time delay counter is:
- Incremented when the activation condition is fulfilled.
- Decremented if the activation condition is no longer fulfilled (before the end of the pickup time delay). If the deactivation condition is reached, the pickup time delay counter is reset and the dropout time delay counter is incremented.
For the dropout threshold, the same principle is used.
The example curve shows management of the time delay on an overvoltage alarm (code 79, see Tables of Alarms, page 19)
The alarm pickup time delay counter trips when the voltage crosses the 500 V threshold. It is incremented or decremented according to the value of the voltage in relation to the threshold.
The alarm dropout time delay counter trips when the voltage drops back below the 420 V threshold.
Alarms on a Trip, Failure, and Maintenance Event
Alarms on a trip, failure, and maintenance event are always active. They can be accessed:
- Using the communication network
- On the Front Display Module (FDM121) (see Front Display Module Functions (FDM121), page 8)
Certain alarms can be assigned to an SDx Module output using the system software.
Alarm Setup
The functions of alarms on a trip and failure event are fixed and cannot be modified.
Modify the functions of the two maintenance alarms (OF operation overrun counter threshold and Close command overrun threshold) using the EPC software under the Breaker I/O tab.
Alarm Priority Level
Assign each alarm a priority level:
- High priority
- Medium priority
For more details on the use of priority levels, see Display of MicroLogic Trip Unit Measurements and Alarms, page 8
Tables of Alarms
Table 3 – Pre-Alarms
| Label | Code | Default Setting | Default Priority | Setting Range | Default Setting | ||||
| Thresholds (Pickup or Drop-Out | Time Delay | Thresholds | Time Delay | ||||||
| Pickup | Drop-Out | Pickup | Drop-Out | ||||||
| Pre Alarm Ir (PAL Ir) | 1013 | Active | Medium | 40–100% Ir | 1 s | 90% Ir | 85% Ir | 1 s | 1 s |
| Pre Alarm Ig (PAL Ig) (MicroLogic 6 trip unit) | 1014 | Active | Medium | 40–100% Ig | 1 s | 90% Ig | 85% Ig | 1 s | 1 s |
Table 4 – MicroLogic A User-Defined Alarms
| Label | Code | Default Setting | Default Priority | Setting Range | Default Setting | |||
| Thresholds (Pickup or Drop-Out) | Time Delay | Thresholds | Time Delay | |||||
| Pickup | Drop-Out | |||||||
| Over Current Inst IA | 1 | Not Active | Medium | 0.2–10 In | 1–3000 s | In | 40 s | 10 s |
| Over Current Inst IB | 2 | Not Active | Medium | 0.2–10 In | 1–3000 s | In | 40 s | 10 s |
| Over Current Inst IC | 3 | Not Active | Medium | 0.2–10 In | 1–3000 s | In | 40 s | 10 s |
| Over Current Inst IN | 4 | Not Active | Medium | 0.2–10 In | 1–3000 s | In | 40 s | 10 s |
| Ground-Fault Alarm (MicroLogic 6 Trip Unit) | 5 | Not Active | Medium | 10–100% Ig | 1–3000 s | 40% Ig | 40 s | 10 s |
| Under Current Inst IA | 6 | Not Active | Medium | 0.2–10 In | 1–3000 s | 0.2 In | 40 s | 10 s |
| Under Current Inst IB | 7 | Not Active | Medium | 0.2–10 In | 1–3000 s | 0.2 In | 40 s | 10 s |
| Under Current Inst IC | 8 | Not Active | Medium | 0.2–10 In | 1–3000 s | 0.2 In | 40 s | 10 s |
| Over Current Iavg | 55 | Not Active | Medium | 0.2–10 In | 1–3000 s | In | 60 s | 15 s |
| Over I max (A, B,C) | 56 | Not Active | Medium | 0.2–10 In | 1–3000 s | In | 60 s | 15 s |
| Under Current IN | 57 | Not Active | Medium | 0.2–10 In | 1–3000 s | 0.2 In | 40 s | 10 s |
| Under Current Iavg | 60 | Not Active | Medium | 0.2–10 In | 1–3000 s | 0.2 In | 60 s | 15 s |
| Under I min (A, B, C) | 65 | Not Active | Medium | 0.2–10 In | 1–3000 s | 0.2 In | 60 s | 15 s |
Table 5 – MicroLogic E User-Defined Alarms
| Label | Code | Default Setting | Default Priority | Setting Range | Default Setting | |||
| Thresholds (Pickup or Drop-Out) | Time Delay | Thresh- olds | Time Delay | |||||
| Pick- up | Drop- Out | |||||||
| Over Current Inst IA | 1 | Not Active | Medium | 0.2–10 In | 1–3000 s | In | 40 s | 10 s |
| Over Current Inst IB | 2 | Not Active | Medium | 0.2–10 In | 1–3000 s | In | 40 s | 10 s |
| Over Current Inst IC | 3 | Not Active | Medium | 0.2–10 In | 1–3000 s | In | 40 s | 10 s |
| Over Current Inst IN | 4 | Not Active | Medium | 0.2–10 In | 1–3000 s | In | 40 s | 10 s |
| Ground-Fault Alarm (MicroLogic 6 Trip Unit) | 5 | Not Active | Medium | 10–100% Ig | 1–3000 s | 40% Ig | 40 s | 10 s |
| Under Current Inst IA | 6 | Not Active | Medium | 0.2–10 In | 1–3000 s | 0.2 In | 40 s | 10 s |
| Under Current Inst IB | 7 | Not Active | Medium | 0.2–10 In | 1–3000 s | 0.2 In | 40 s | 10 s |
| Under Current inst IC | 8 | Not Active | Medium | 0.2–10 In | 1–3000 s | 0.2 In | 40 s | 10 s |
| Over Iunbal phase A | 9 | Not Active | Medium | 5–60% Iavg | 1–3000 s | 25% | 40 s | 10 s |
| Over Iunbal phase B | 10 | Not Active | Medium | 5–60% Iavg | 1–3000 s | 25% | 40 s | 10 s |
| Over Iunbal phase C | 11 | Not Active | Medium | 5–60% Iavg | 1–3000 s | 25% | 40 s | 10 s |
| Over Voltage VAN | 12 | Not Active | Medium | 100–1100 V | 1–3000 s | 300 V | 40 s | 10 s |
| Over Voltage VBN | 13 | Not Active | Medium | 100–1100 V | 1–3000 s | 300 V | 40 s | 10 s |
| Over Voltage VCN | 14 | Not Active | Medium | 100–1100 V | 1–3000 s | 300 V | 40 s | 10 s |
| Under Voltage VAN | 15 | Not Active | Medium | 100–1100 V | 1–3000 s | 180 V | 40 s | 10 s |
| Under Voltage VBN | 16 | Not Active | Medium | 100–1100 V | 1–3000 s | 180 V | 40 s | 10 s |
| Under Voltage VCN | 17 | Not Active | Medium | 100–1100 V | 1–3000 s | 180 V | 40 s | 10 s |
| Over Vunbal VAN | 18 | Not Active | Medium | 2%–30% Vavg | 1–3000 s | 10% | 40 s | 10 s |
| Over Vunbal VBN | 19 | Not Active | Medium | 2%–30% Vavg | 1–3000 s | 10% | 40 s | 10 s |
| Over Vunbal VCN | 20 | Not Active | Medium | 2%–30% V | 1–3000 s | 10% | 40 s | 10 s |
| Over total KVA | 21 | Not Active | Medium | 1–1000 kVA | 1–3000 s | 100 kVA | 40 s | 10 s |
| Over direct KW | 22 | Not Active | Medium | 1–1000 kVA | 1–3000 s | 100 kW | 40 s | 10 s |
| Reverse power KW | 23 | Not Active | Medium | 1–1000 kVA | 1–3000 s | 100 kW | 40 s | 10 s |
| Over direct KVAr | 24 | Not Active | Medium | 1–1000 kva | 1–3000 s | 100 kvar | 40 s | 10 s |
| Reverse power KVAr | 25 | Not Active | Medium | 1–1000 kvar | 1–3000 s | 100 kvar | 40 s | 10 s |
| Under total KVA | 26 | Not Active | Medium | 1–1000 kVA | 1–3000 s | 100 kVA | 40 s | 10 s |
| Under direct KW | 27 | Not Active | Medium | 1–1000 kW | 1–3000 s | 100 kW | 40 s | 10 s |
| Under direct KVAr | 29 | Not Active | Medium | 1–1000 kva | 1–3000 s | 100 kvar | 40 s | 10 s |
| Leading PF (IEEE)1 | 31 | Not Active | Medium | 0–0.99 | 1–3000 s | 0.80 | 40 s | 10 s |
| Lead or Lag PF(IEC)1 | 33 | Not Active | Medium | 0–0.99 | 1–3000 s | 0.80 | 40 s | 10 s |
| Lagging PF (IEEE)1 | 34 | Not Active | Medium | -0.99–0 | 1–3000 s | -0.80 | 40 s | 10 s |
| Over THD Current IA | 35 | Not Active | Medium | 0–500% | 1–3000 s | 15% | 40 s | 10 s |
| Over THD Current IB | 36 | Not Active | Medium | 0–500% | 1–3000 s | 15% | 40 s | 10 s |
| Over THD Current IC | 37 | Not Active | Medium | 0–500% | 1–3000 s | 15% | 40 s | 10 s |
| Over THD VAN | 38 | Not Active | Medium | 0–500% | 1–3000 s | 5% | 40 s | 10 s |
| Over THD VBN | 39 | Not Active | Medium | 0–500% | 1–3000 s | 5% | 40 s | 10 s |
| Over THD VCN | 40 | Not Active | Medium | 0–500% | 1–3000 s | 5% | 40 s | 10 s |
| Over THD VAB | 41 | Not Active | Medium | 0–500% | 1–3000 s | 5% | 40 s | 10 s |
| Over THD VBC | 42 | Not Active | Medium | 0–500% | 1–3000 s | 5% | 40 s | 10 s |
| Over THD VCA | 43 | Not Active | Medium | 0–500% | 1–3000 s | 5% | 40 s | 10 s |
| Over Current Iavg | 55 | Not Active | Medium | 0.2–10 In | 1–3000 s | In | 60 s | 15 s |
| Over I max (A, B, C) | 56 | Not Active | Medium | 0.2–10 In | 1–3000 s | In | 60 s | 15 s |
| Under Current IN | 57 | Not Active | Medium | 0.2–10 In | 1–3000 s | 0.2 In | 40 s | 10 s |
| Under Current Iavg | 60 | Not Active | Medium | 0.2–10 In | 1–3000 s | 0.2 In | 60 s | 15 s |
| Over IA Demand | 61 | Not Active | Medium | 0.2–10.5 In | 1–3000 s | 0.2 In | 60 s | 15 s |
| Over IB Demand | 62 | Not Active | Medium | 0.2–10.5 In | 1–3000 s | 0.2 In | 60 s | 15 s |
| Over IC Demand | 63 | Not Active | Medium | 0.2–10.5 In | 1–3000 s | 0.2 In | 60 s | 15 s |
| Over IN Demand | 64 | Not Active | Medium | 0.2–10.5 In | 1–3000 s | 0.2 In | 60 s | 15 s |
| Under I min (A, B, C) | 65 | Not Active | Medium | 0.2–10 In | 1–3000 s | 0.2 In | 60 s | 5 s |
| Under IA Demand | 66 | Not Active | Medium | 0.2–10.5 In | 1–3000 s | 0.2 In | 60 s | 15 s |
| Under IB Demand | 67 | Not Active | Medium | 0.2–10.5 In | 1–3000 s | 0.2 In | 60 s | 15 s |
| Under IC Demand | 68 | Not Active | Medium | 0.2–10.5 In | 1–3000 s | 0.2 In | 60 s | 15 s |
| Under IN Demand | 69 | Not Active | Medium | 0.2–10.5 In | 1–3000 s | 0.2 In | 60 s | 15 s |
| Over Iunbal max | 70 | Not Active | Medium | 5–60% Iavg | 1–3000 s | 25% | 40 s | 10 s |
| Over Voltage VAB | 71 | Not Active | Medium | 100–1100 V | 1–3000 s | 500 V | 40 s | 10 s |
| Over Voltage VBC | 72 | Not Active | Medium | 100–1100 V | 1–3000 s | 500 V | 40 s | 10 s |
| Over Voltage VCA | 73 | Not Active | Medium | 100–1100 V | 1–3000 s | 500 V | 40 s | 10 s |
| Over Volt Vavg L-N | 75 | Not Active | Medium | 100–1100 V | 1–3000 s | 300 V | 5 s | 2 s |
| Under Voltage VAB | 76 | Not Active | Medium | 100–1100 V | 1–3000 s | 320 V | 40 s | 10 s |
| Under Voltage VBC | 77 | Not Active | Medium | 100–1100 V | 1–3000 s | 320 V | 40 s | 10 s |
| Under Voltage VCA | 78 | Not Active | Medium | 100–1100 V | 1–3000 s | 320 V | 40 s | 10 s |
| Over V max L-L | 79 | Not Active | Medium | 100–1100 V | 1–3000 s | 300 V | 5 s | 2 s |
| Under Volt Vavg L-N | 80 | Not Active | Medium | 100–1100 V | 1–3000 s | 180 V | 5 s | 2 s |
| Under V min L-L | 81 | Not Active | Medium | 100–1100 V | 1–3000 s | 180 V | 5 s | 2 s |
| Over Vunb max L-N | 82 | Not Active | Medium | 2%–30% Vavg | 1–3000 s | 10% | 40 s | 10 s |
| Over Vunbal VAB | 86 | Not Active | Medium | 2%–30% Vavg | 1–3000 s | 10% | 40 s | 10 s |
| Over Vunbal V2B | 87 | Not Active | Medium | 2%–30% Vavg | 1–3000 s | 10% | 40 s | 10 s |
| Over Vunbal VCA | 88 | Not Active | Medium | 2%–30% Vavg | 1–3000 s | 10% | 40 s | 10 s |
| Over Vunb max L-L | 89 | Not Active | Medium | 2%–30% Vavg | 1–3000 s | 10% | 40 s | 10 s |
| Phase sequence | 90 | Not Active | Medium | 0.1 | N/A | 0 | N/A | N/A |
| Under Frequency | 92 | Not Active | Medium | 45–65 Hz | 1–3000 s | 45 Hz | 5 s | 2 s |
| Over Frequency | 93 | Not Active | Medium | 45–65 Hz | 1–3000 s | 65 Hz | 5 s | 2 s |
| Over KW Power dmd | 99 | Not Active | Medium | 1–.1000 kW | 1–3000 s | 100 kW | 40 s | 10 s |
| Leading cos ϕ (IEEE) 2 | 121 | Not Active | Medium | 0–0.99 | 1–3000 s | 0.80 | 40 s | 10 s |
| Lead, Lag cos ϕ (IEC)1 | 123 | Not Active | Medium | 0–0.99 | 1–3000 s | 0.80 | 40 s | 10 s |
| Lagging cos ϕ (IEEE) 1 | 124 | Not Active | Medium | -0.99–0 | 1–3000 s | –0.80 | 40 s | 10 s |
| Over T° image motor (MicroLogic 6 E-M trip unit) | 125 | Not Active | Medium | 0.2–10.5 In | 1–3000 s | In | 60 s | 15 s |
| Under T° image motor (MicroLogic 6 E-M trip unit) | 126 | Not Active | Medium | 0.2–10.5 In | 1–3000 s | In | 60 s | 15 s |
| Over IA Peak Demand | 141 | Not Active | Medium | 0.2–10.5 In | 1–3000 s | In | 60 s | 15 s |
| Over IB Peak Demand | 142 | Not Active | Medium | 0.2–10.5 In | 1–3000 s | In | 60 s | 15 s |
| Over IC Peak Demand | 143 | Not Active | Medium | 0.2–10.5 In | 1–3000 s | In | 60 s | 15 s |
| Over IN Peak Demand | 144 | Not Active | Low | 0.2–10.5 In | 1–3000 s | In | 60 s | 15 s |
| Lead | 145 | Not Active | Low | 0.0 | 1–3000 s | 0 | 40 s | 10 s |
| Lag | 146 | Not Active | Low | 1.1 | 1–3000 s | 1 | 40 s | 10 s |
| Quadrant 1 | 147 | Not Active | Low | 1.1 | 1–3000 s | 1 | 40 s | 10 s |
| Quadrant 2 | 148 | Not Active | Low | 2.2 | 1–3000 s | 2 | 40 s | 10 s |
| Quadrant 3 | 149 | Not Active | Low | 3.3 | 1–3000 s | 3 | 40 s | 10 s |
| Quadrant 4 | 150 | Not Active | Low | 4.4 | 1–3000 s | 4 | 40 s | 10 s |
Table 6 – Event Alarms
| Alarm Type | Label | Code | SDx Output | Priority |
| Alarms on a Trip Event | Long-time prot Ir | 16384 | Yes | High |
| Short-time prot Isd | 16385 | Yes | High |
| Instant prot Ii | 16386 | Yes | High | |
| Ground fault Ig | 16387 | Yes | High | |
| Integ instant prot | 16390 | No | High | |
| Trip unit fail (Stop) | 16391 | Yes | High | |
| Instant vigi prot | 16392 | No | High | |
| Reflex tripping | 16393 | No | High | |
| Phase unbalance | 16640 | Yes | High | |
| Jam motor prot | 16641 | Yes | High | |
| Under load mtr prot | 16642 | Yes | High | |
| Under load mtr prot | 16642 | Yes | High | |
| Long start mtr prot | 16643 | Yes | High | |
| Trip indicator SD | 1905 | Yes | Medium | |
| Alarms on a Failure Event | BSCM failure (Stop) | 1912 | Yes | High |
| BSCM failure (Err) | 1914 | Yes | Medium | |
| Alarms on a Maintenance Event | OF operation overrun | 1916 | Yes | Medium |
| Close command overrun | 1919 | Yes | Medium |
Operation of SDx and SDTAM Module Outputs Assigned to Alarms
Two alarms can be assigned to the two SDx Module outputs.
Set up the two outputs using the EPC software (Outputs tab). They are activated (or deactivated) by the occurrence (or completion) of:
- An alarm associated with a measurement (See Alarms Associated with Measurements, page 15)
- An alarm on a trip, failure, and maintenance event (see Alarms on a Trip, Failure, and Maintenance Event, page 18)
The two outputs on the SDTAM Module (MicroLogic M) cannot be configured:
- Output 1 is assigned to motor thermal fault indication
- Output 2 is used to open the contactor
For more details on the SDx and SDTAM Modules, see the PowerPacT™ H-, J-, and L-Frame Circuit Breaker—User Guide.
SDx Module Output Operating Modes
Set the operating mode for the SDx Module outputs as:
- Non-latching mode
The output (S) position follows the associated alarm (A) transitions. - Latching mode
The position of the output (S) follows the active transition of the associated alarm (A) and remains latched irrespective of the alarm state. - Time-delayed non-latching mode
The output (S) follows the activation transition for the associated alarm (A). The output returns to the deactivated position after a time delay irrespective of the alarm state.
The setting range for the time delay (using the EPC software) is 1–360 s. The default time delay setting is 5 seconds. - Open or closed forced mode
- In open forced mode, the output remains in the deactivated position irrespective of the alarm state.
- In closed forced mode, the output remains in the activated position irrespective of the alarm state.
NOTE: Both these modes can be used for debugging or checking an electrical installation.
Alarm activation transition- Alarm deactivation transition
Acknowledgement of Latching Mode
Acknowledge the Latching Mode using the MicroLogic trip unit keypad by pressing the Special Features of Latching Mode
If the acknowledge request is made when the alarm is still active:
- Acknowledgment of the output active position has no effect.
- Keypad navigation is possible.
- The screensaver returns to the Out1 message.
If two alarms associated with two outputs in latching mode are active:
- The first alarm message Out1 (or Out2) is displayed on the screen until the alarm is acknowledged (the output’s active position is acknowledged after the alarm is deactivated).
- After acknowledgment of the first alarm, the screen displays the second alarm message Out2 (or Out1) until the second alarm is acknowledged.
- After both acknowledgments, the display returns to the screensaver.
A Alarm:
Green when activated
White when deactivated
S Output:
High position = activated
Low position = deactivated
| Step | Event/Action | Display Information |
| 1 | Alarm activation | “Out1” is displayed. |
| 2 | Alarm deactivation | “Out1” is still displayed. |
| 3 | Confirm active position of the output (press the key twice to confirm) | “OK” is displayed. |
| 4 | – | The screensaver is displayed. |
Section 5 — EcoStruxure Power Commission (EPC) Software
Function Setting
EcoStruxure Power Commission (EPC) Software works with MicroLogic trip units to:
- Check and configure
- Metering functions
- Alarms
- Assignment of the SDx Module outputs
- BSCM functions
- ModbusTMInterface Module
- Modify passwords
- Save configurations
- Edit configurations
- Download the firmware
Some functionality may require the inclusion of a test kit(s) found in Section 7 of The Digest (Reference 0100CT1901).
Using the EPC Software
WARNING
- POTENTIAL COMPROMISE OF SYSTEM AVAILABILITY, INTEGRITY, AND CONFIDENTIALITY
- Change default passwords at first use to help prevent unauthorized access to device settings, controls and information.
- Disable unused ports/services and default accounts to help minimize pathways for malicious attackers.
- Place networked devices behind multiple layers of cyber defenses (such as firewalls, network segmentation, and network intrusion detection and protection.
- Use cybersecurity best practices (for example, least privilege, separation of duties) to help prevent unauthorized exposure, loss, modification of data and logs, or interruption of services.
- Failure to follow these instructions can result in death, serious injury, or equipment damage.
The EPC software can be used:
- In standalone mode, directly on the MicroLogic trip unit and SI kit connected to the test port and to a PC over USB.
- Using the communication network
For more details, see the EPC Software Online Help under the Help menu in EPC.
Use offline mode to configure the protection, metering, and alarm functions of the MicroLogic trip unit in the EPC software.
For more details on offline mode, see the EPC Software Online Help.
Schneider Electric
800 Federal Street
Andover, MA 01810
USA
888-778-2733
www.se.com
As standards, specifications, and design change from time to time, please ask for confirmation of the information given in this publication.
© 2012 – 2024 Schneider Electric. All rights reserved.
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Documents / Resources
 |
Schneider Electric MicroLogic 5 Power Pact and Frame Circuit Breakers [pdf] Instruction Manual MicroLogic 5, MicroLogic 6, MicroLogic 5 Power Pact and Frame Circuit Breakers, MicroLogic 5, Power Pact and Frame Circuit Breakers, Frame Circuit Breakers, Circuit Breakers, Breakers |
