SEL-2245-3 Analog Output Module
The SEL-2245-3 provides DC analog outputs for the SEL Axion® platform. Within an Axion system, install as many as sixteen SEL-2245-3 modules, with as many as three SEL-2245-3 modules per node.
Front Panel
The front panel of the SEL-2245-3 module features status LEDs and terminal connectors. The LEDs indicate the module's operational status. Terminal connectors are labeled for specific functions.
Figure 1: SEL-2245-3 DC Analog Output Module
The front panel displays two LEDs: ENABLED (green) and ALARM (amber). It also shows terminal connections labeled: 3-GND, 01, 02, 03, 8-GND, 05, 13-GND, 06, 18-GND, 19, 20, 08.
Mechanical Installation
The SEL-2242 chassis/backplane has slots labeled A-J. Slots B-J are compatible with SEL-2245-3 modules. Installation involves tipping the module, aligning a notch on its bottom with a chassis slot, and placing it on the chassis lip. The module is correctly aligned when it rests fully on the lip.
Figure 2: Proper Module Placement
This illustrates the process of inserting the module into the chassis, aligning the bottom notch with the designated slot on the chassis.
Next, carefully rotate the module into the chassis, making sure that the alignment tab fits into its corresponding slot at the top of the chassis. Press the module firmly into place and secure it with the chassis retaining screw.
Figure 3: Final Module Alignment
This shows the module correctly seated and aligned within the chassis, with the top alignment tab engaged.
Output Connections
The SEL-2245-3 provides DC analog outputs, indicated by a plus sign for positive convention. Refer to the specifications for analog output ratings and terminal assignments.
Outputs can be configured to drive ±20 mA or ±10 V signals. Configuration is done via a Fieldbus I/O connection for each module using ACSELERATOR RTAC® SEL-5033 Software. For details, consult the EtherCAT® section in the SEL-5033 software manual.
CAUTION: Use supply wires suitable for 60°C (140°F) above ambient temperature. Consult the product or manual for specific ratings.
LED Indicators
The module features two LEDs: ENABLED (green) and ALARM (amber), which relate to EtherCAT network operation.
The green ENABLED LED illuminates when the module is operating normally on the network.
The ALARM LED illuminates during network initialization or if a network problem occurs. For further information, refer to Section 3: Testing and Troubleshooting in the SEL-2240 Instruction Manual.
Specifications
Compliance
- Designed and manufactured under an ISO 9001 certified quality management system.
- UL Listed to U.S. and Canadian safety standards (File NRAQ, NRAQ7 per UL508, and C22.2 No. 14).
- CE Mark.
Product Standards
- IEC 60255-26:2013 - Relays and Protection Equipment: EMC
- IEC 60255-27:2014 - Relays and Protection Equipment: Safety
- IEC 60825-2:2004 +A1:2007 +A2:2010 for fiber-optic communications
- IEC 61850-3:2013 - Comm Systems for Power Utility Automation
General
- Operating and Storage Temperature Range: -40° to +85°C (-40° to +185°F). Units should be stored and transported in their original packaging.
- Note: Operating temperature evaluated for UL ambient 0° to 40°C.
- Operating Environment: Pollution Degree: 2, Overvoltage Category: II, Insulation Class: 1, Relative Humidity: 5–95% noncondensing, Maximum Altitude: 2000 m.
- Vibration, Earth Tremors: Class 1.
DC Analog Outputs (SEL-2245-3)
Current Mode
- Output Range: ±20.48 to +20.48 mA
- Load Impedance: 0–750 Ω @ 20 mA, 100 μH
Voltage Mode
- Output Range: ±10.24 to +10.24 volts
- Load Impedance: >2000 Ω, 1 μF
Step Response:
1 ms (10–90% response typical)
Isolation
2000 Vdc between outputs or ground
Accuracy at 25°C
Outputs
- Current Mode: ±0.3% of full scale typical; ±3% of full-scale worst case (during an EMI event over a 1-second period)
- Voltage Mode: ±0.2% of full-scale typical; ±2% of full-scale worst case (during an EMI event over a 1-second period)
Accuracy Variation With Temperature
- Outputs: ±0.01% of full-scale/°K (current or voltage mode)
Type Tests
Environmental Tests
| Test | Standard | Severity Level |
|---|---|---|
| Enclosure Protection | IEC 60529:2001 + CRGD:2003 | IP3X excluding the terminal blocks |
| Vibration Resistance | IEC 60255-21-1:1988 | Vibration Endurance, Severity: Class 2; Vibration Response, Severity: Class 2 |
| Shock Resistance | IEC 60255-21-2:1988 | Bump Withstand, Severity: Class 1; Shock Withstand, Severity: Class 1; Shock Response, Severity: Class 2 |
| Seismic | IEC 60255-21-3:1993 | Quake Response, Severity: Class 2 |
| Cold, Operational and Cold, Storage | IEC 60068-2-1:2007 | -40°C, 16 hours |
| Dry Heat, Operational and Dry Heat, Storage | IEC 60068-2-2:2007 | +85°C, 16 hours |
| Damp Heat, Cyclic | IEC 60068-2-30:2005 | 25° to 55°C, 6 cycles, 95% relative humidity |
| Damp Heat, Steady State | IEC 60068-2-78:2012 | 93% RH and 55°C for 10 days |
| Change of Temperature | IEC 60068-2-14:2009 | 1 deg. per minute, -40° and +85°C, 5 cycles |
Dielectric Strength and Impulse Tests
| Test | Standard | Severity Level |
|---|---|---|
| Impulse | IIEC 60255-5:2000; IEEE C37.90-2005 | 0.5 Joule, 3 kV channel to chassis; 0.5 Joule, 3 kV channel to channel |
| Dielectric (HiPot) | IEC 60255-5:2000; IEEE C37.90-2005 | 2000 Vdc channel to chassis for 1 minute; 2000 Vdc channel to channel for 1 minute |
RFI and Interference Tests
EMC Immunity
Low-level analog dc signals were tested with shielded twisted pair for optimum noise rejection.
| Test | Standard | Severity Level |
|---|---|---|
| Slow Damped Oscillatory Waves | IEC 61000-4-18:2006 + A1:2010 | 2.5 kV common mode; 1 kV differential mode |
| Electrostatic Discharge Immunity | IEEE C37.90.3-2001; IEC 60255-22-2:2008; IEC 61000-4-2:2008 | 8 kV contact discharge; 15 kV air discharge |
| Radiated RF Immunity | IEEE C37.90.2-2004; IEC 61000-4-3:2008; IEC 60255-22-3:2007 | 35 V/m; 10 V/m |
| Conducted RF Immunity | IEC 60255-22-6:2001; IEC 61000-4-6:2008 | 10 Vrms |
Surge Immunity
IEC 60255-22-5:2008; IEC 61000-4-5:2005. Severity Level: 1 kV Line to Line, 2 kV Line to Earth. (Output accuracy may deviate unless a 1 s delay is implemented on the monitoring device.)
Fast Transient, Burst Immunity
IEC 60255-22-4:2008; IEC 61000-4-4:2011. Severity Level: Class A: 4 kV, 5 kHz; 2 kV, 5 kHz on communication ports.
Magnetic Field Immunity
IEC 61000-4-8:2009; IEC 61000-4-9:2001; IEC 61000-4-10:2001. Severity Level: 1000 A/m for 3 seconds, 100 A/m for 1 minute; 1000 A/m; 100 A/m.
Surge Withstand Capability Immunity
IEEE C37.90.1-2002. Severity Level: 2.5 kV Oscillatory; 4.0 kV Fast Transient. (Output accuracy may deviate unless a 100 ms delay is implemented on the monitoring device.)
Oscillatory Waves Immunity
IEC 61000-4-12:2006. Severity Level: Ring Wave: 2 kV common, 1.0 kV differential; Oscillatory: 2.5 kV common, 1.0 kV differential.
Common Mode Disturbance Immunity
IEC 61000-4-16:2002. Frequency: 0 to 150 Hz. Severity Level: Level 4, Segment 4: 30 Vrms open-circuit, 15 to 150 kHz.
Emissions
Radiated and Conducted Emissions
IEC 60255-25:2000. Severity Level: Class A. Canada ICES-001 (A) / NMB-001 (A).
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