ELEXANT 4020i
RAYCHEM-DS-EU1481-Elexant4020i-EN ELEXANT 4020i
SINGLE-POINT HEAT-TRACING CONTROL MODULE
PRODUCT OVERVIEW
The nVent RAYCHEM Elexant 4020i is a compact, full-featured, touch screen based, single-point heat-tracing controller. It provides control and monitoring of Electric Heat-Tracing (EHT) circuits for both freeze protection and process temperature maintenance. This controller can monitor and alarm on high and low temperature, high and low current, ground-fault levels, voltage, and supports a host of additional features to offer the utmost in control and monitoring of EHT.
Elexant 4020i-Mod-3P-IS
The Elexant 4020i controller provides three output types: a line powered electromechanical relay (EMR) for driving contactors in nonhazardous locations; a DC output for driving solid-state relays (SSRs) in nonhazardous and Class I Div. 2 / Zone 2 hazardous locations; and a 0-10V analog output for driving variable output power modules. Multiple communication ports allow flexible connectivity for remote monitoring, configuration, and ease of integration with nVent RAYCHEM Supervisor software or a Distributed Control System (DCS).
Control
The Elexant 4020i measures temperatures for up to three directly-connected temperature sensors. The controller also supports 4-20mA inputs, allowing the use of external temperature sensor converters with thermocouples or other sensor types. The Elexant 4020i also features line sensing, ambient sensing, Proportional Ambient Sensing Control (PASC), and power limiting modes.
Safety Limiter
The Safety Limiter option provides a redundant, functionally safe, high temperature cutout mechanism. Its IEC61508 SIL2 certification makes it suitable for safety-critical applications.
Monitoring
A complete set of parameters are measured, including ground fault, temperature, current, and voltage to ensure system integrity. The system can be set to periodically check the heating cable for faults, alerting maintenance personnel of a heat-tracing problem eliminating costly manual maintenance checks.
A programmable dry contact alarm relay is provided for local or remote alarm annunciation. The dedicated Safety Limiter contactor output provides hardware redundancy for the Safety Limiter option.
Installation
The Elexant 4020i modules can be mounted on symmetric 35mm DIN-railes into an enclosure appropriate for the intended environment. nVent offers standard multi-circuit panels suitable for indoor or outdoor locations, and custom configurations are available to provide the most flexible solution. Installing is as simple as connecting the incoming and outgoing power wiring and temperature sensors as needed for the application.
The Elexant 4020i provides is an intuitive user interface that makes it easy to use and program. No additional programming devices are needed. Alarm conditions and programming settings are easy to read and interpret on the color touch screen. Settings are stored in non-volatile memory in the event of a power failure.
Communication
Elexant 4020i units come equipped with RS485 and Ethernet ports and can be readily connected to a distributed control system (DCS). The units support both the Modbus RTU and ModBus/TCP protocols, and an optional ProfiBus module is also available. The controller may be networked to a host PC running Windows-based nVent RAYCHEM Supervisor software for central programming, status review, and alarm annunciation.
RAYCHEM-DS-EU1481-Elexant4020i-EN-1905
nVent.com | 1
GENERAL Area of Use
Approvals
Nonhazardous locations (when using EMR contactors)
Nonhazardous and Class I, Division 2 / Zone 2 hazardous locations (SSR or purged panel versions)
Hazardous locations Hazardous Locations
Class I, Division 2, Group A,B,C,D T4 Type 4X Class I, Zone 2, AEx nA nC [ia Ga] IIC T4 Gc Ex ec nC [ia Ga] IIC T4 Gc
E4905419 Proc. Cont. Eq. Use in Haz. Loc. (Associated Apparatus)
DEMKO 18 ATEX 2091 X IECEx UL 18 .0098X II 3 (1)G Ex ec nC [ia Ga] IIC T4 Gc
1180
I.S Temperature Sensor Inputs (Optional) Um = 305VAC
Associated Apparatus
Uo = 5.4V
Entity Parameters
Io = 0.083A
Ca = 65uF La = 2mH
Electromagnetic Compatibility Supply voltage Internal power consumption
IEC 61326-1:2012 / EN 61326-1:2013 100Vac to 277Vac, +/-10%, 50-60Hz < 24W per 4020i module
FUNCTIONAL SAFETY
Standard
IEC 61508:2010
Safety Integrity Level
SIL 2
Systematic Capability
SC 3
Available only with the Safety Limiter option. See Safety Limiter section of User Manual for detailed safety information
ENVIRONMENTAL
Ambient operating temperature
-40°C to 70°C (-40°F to 158°F)
Ambient storage temperature
-55°C to 85°C (-67°F to 185°F)
Relative humidity
0% to 90%, noncondensing
Environment
PD2, CAT III
Max altitude
2,000 m (6,562 ft)
Elexant 4020i control modules are packaged in DIN rail mount housings for installation onto symmetric 35mm DIN rails into enclosures suitable for the intended environment.
CONTROL & LOAD
Load Voltage, maximum Load Current, maximum Control algorithms
Control Range
690Vac, 50/60Hz 63A continuous (limited by the rating of the output device) EMR Version: On/Off, PASC, always on, always off SSR Version: On/Off, proportional, PASC, always on, always off -200°C to 700°C (-328°F to 1292°F)
RAYCHEM-DS-EU1481-Elexant4020i-EN-1905
nVent.com | 2
TYPICAL ENCLOSURE DIMENSIONS Elexant 4020i-Mod shown
Front View
Side View
Bottom View
Rear View
MOUNTING ([INCHES] MM)
Without IS Barrier Panel mounting on 35 mm DIN rails
[7.1 MAX] 180.9 MAX
[5.3] 134
Single Phase
[4.2] 107
CLEARANCE FOR PAN HEAD M4 [#8] SAE
[5.4 MAX] 137.8 MAX
[.2] 4
[6.9 MAX] 175.3 MAX
With IS Barrier Panel mounting on 35 mm DIN rails
DIN RAIL
NOT INCL CL
7.2 MAX 182.7 MAX
4.2 107
5.3 134
Three Phase with ProfiBus
CLEARANCE FOR PAN HEAD M4 [#8] SAE
5.4 MAX 137.8 MAX
.2 4
6.9 MAX 175.3 MAX
DIN RAIL NOT INCL. CL
MONITORING Temperature Ground fault Current
Voltage Resistance Autocycle
Low alarm range High alarm range Alarm range Trip range Low alarm range High alarm range Power limit range Low alarm range High alarm range Low resistance range High resistance range Diagnostic test interval
-200°C to 700°C (-328°F to 1292°F) or OFF -200°C to 700°C (-328°F to 1292°F) or OFF 10mA to 500mA or OFF 10mA to 500mA or OFF 0.1A to 100A or OFF 0.1A to 100A or OFF 8 W to 30 kW 80Vac to 300Vac or OFF 80Vac to 300Vac or OFF 1% to 100% of deviation from nominal 1% to 250% of deviation from nominal 1 to 750 hours
RAYCHEM-DS-EU1481-Elexant4020i-EN-1905
nVent.com | 3
TEMPERATURE SENSOR INPUTS Standard Quantity Types 100 platinum RTD
100 nickel iron RTD
100 nickel RTD
Thermocouple
3 Each can be individually set to one of the types below.
3-wire, =0.00385 ohms/ohm/°C -200°C to 700°C (-328°F to 1292°F), ± 1°C Can be extended with a 3-conductor shielded cable of 20 maximum per conductor
2-wire, =0.00599 ohms/ohm/°C -73°C to 350°C (-99°F to 662°F), ± 1°C Can be extended with a 2-conductor shielded cable of 20 maximum per conductor
2-wire, =0.00618 ohms/ohm/°C -70°C to 250°C (-94°F to 482°F), ± 1°C Can be extended with a 2-conductor shielded cable of 20 maximum per conductor
Requires external 4-20 mA converter 4-20mA current loop, ±0.05mA, 24Vdc loop power
The Elexant 4020i-IS variants are equipped with intrinsic safety barriers at the RTD inputs.
RTD Intrinsic Safety Associated Apparatus Entity Parameters
Uo (Maximum Output Voltage): 5.4V
La (Maximum External Inductance): 2mH
Io (Maximum Output Current): 0.083A Ca (Maximum External Capacitance): 65uF
Po (Maximum Output Power): 0.449W
Optional Safety Limiter 100 platinum RTD
One dedicated temperature input 3-wire, =0.00385 ohms/ohm/°C -200°C to 700°C (-328°F to 1292°F), ± 1°C Can be extended with a 3-conductor shielded cable of 20 maximum per conductor
DIGITAL INPUTS Quantity Rating
OUTPUTS Control Relay
Two multi-purpose inputs for connection to external dry (voltage free) contact or DC voltage May be configured for Hand-Off-Auto (HOA) operation 100 max loop resistance or 5-24Vdc @ 1mA maximum
Form-A wet contact:
100Vac to 277Vac, 3A, 50/60Hz
RAYCHEM-DS-EU1481-Elexant4020i-EN-1905
nVent.com | 4
DC (SSR) Control Output Analog (Linear Phase Control) Alarm Relay Auxiliary Output
12Vdc @ 215 mA max.
0-10Vdc @ 215 mA max.
Form-C dry contact:
100Vac to 277Vac, 3A, 50/60Hz
24Vdc, max load of 250mA @ 40°C, de-rated to 165mA @ 60°C
CONFIGURATION Method Units Idle display LEDs Memory Stored usage parameters
Alarm conditions
Alarm Modes Control Algorithms
Equipment Protection
Load Shedding
Profiles
Network Firmware Updates Multi-language Interface Other
CONNECTION TERMINALS
Power supply input Heating cable voltage sense input Ground (Earth) Torque range for screw terminals Sensor / Other terminals
Touch screen display °F or °C Sensor temperature, control temperature, heater current, voltage, power, alarm status Status, heater on, alarm conditions, receive / transmit data Nonvolatile, restored after power loss, checksum data checking Minimum and maximum process temperature, maximum ground-fault current, minimum and maximum voltage, maximum heater current, power accumulator, contactor cycle count, total time in use, heater on time Low / high temperature, low / high current, low / high voltage, low / high resistance, ground-fault alarm / trip, RTD failure, loss of programmed values, EMR or SSR failure, equipment protection trip, attached device alarm, Safety Limiter alarms, contactor lifetime exceeded Normal (solid on), flash (on & off), toggle (re-ring new alarms) EMR Version: On/Off, PASC, always on, always off SSR Version: On/Off, proportional, PASC, always on, always off Ground fault trip, low / high temperature limit, Soft-Start features: (heat-trace output limiting, SSR overcurrent protection, circuit breaker nuisance trip prevention) Up to 8 zones, with temperature failsafe and communication timeout (requires nVent RAYCHEM Supervisor) Built-in default setting profiles for common heat trace applications Up to two additional user configurations can be saved and reloaded. Saved configurations can be saved to, and loaded from, a USB thumb drive Automatic network configuration with DHCP, or static IP configuration User updateable using a USB thumb drive English, French, German, Spanish, Russian Password protection, text tags / identifiers for controller and temperature sensors
Screw terminals, 0.2 16.8mm2 (24 5 AWG) Screw terminals, 0.2 16.8mm2 (24 5 AWG) Screw terminal, 0.2 16.8mm2 (24 5 AWG) 1.2 1.5 Nm Cage clamp terminals, 0.08 3.3 mm2 (28 12 AWG)
COMMUNICATIONS
RS-485 Type Cable Length Quantity Data Rate Parity Stop bits Tx delay
RAYCHEM-DS-EU1481-Elexant4020i-EN-1905
2-wire RS-485 One shielded twisted pair 1,200 m (4,000 ft) maximum Up to 247 devices per port 9600, 19.2k, 38.4k, 57.6k baud None, even, odd 0, 1, 2 0 5 seconds
nVent.com | 5
Protocol
Modbus RTU
Ethernet Type Length Data rates Protocol Connection terminals
10/100 BaseT 100 m (328 ft) maximum 10 or 100 MB/s Modbus/TCP, DHCP Shielded 8-pin RJ-45
Profibus (optional) Length Quantity Data rates Protocol Connection terminals
1,200 m (4,000 ft) maximum Up to 32 devices per port up to 12 MB/s Profibus DPV0 DB9 connector
ORDERING DETAILS
Description Elexant 4020i controller module with intrinsically safe barriers on RTD inputs. Single Phase loads. (Approved for Zone 2 locations. RTDs may be placed in Zone 0/Zone 1/ Zone 2 locations)
Catalog number 10380-021
Part number 4020i-Mod-IS
Weight (kg/lbs.) 1.3/2.9
Elexant 4020i controller module with intrinsically safe
barriers on RTD inputs and functional safety limiter. Single Phase loads.
(Approved for Zone 2 locations. RTDs may be placed in Zone 0/Zone 1/ Zone 2 locations)
10380-022 4020i-Mod-IS-LIM
1.2/2.6
Elexant 4020i controller module with intrinsically safe
barriers on RTD inputs. Three Phase loads.
(Approved for Zone 2 locations. RTDs may be placed in Zone 0/Zone 1/ Zone 2 locations)
10380-024 4020i-Mod-3P-IS
1.3/2.9
Elexant 4020i controller module with intrinsically safe barriers on RTD inputs. Includes ProfiBus communication module.. Single Phase loads. (Approved for Zone 2 locations. RTDs may be placed in Zone 0/Zone 1/ Zone 2 locations)
10380-025 4020i-Mod-IS-PRF
1.3/2.9
Elexant 4020i controller module with intrinsically safe
barriers on RTD inputs. Includes ProfiBus communication module. communication module. Single Phase loads. (Approved for Zone 2 locations. RTDs may be placed in Zone 0/Zone 1/ Zone 2 locations)
10380-026
4020i-Mod-ISLIM-PRF
1.2/2.6
Elexant 4020i controller module with intrinsically safe
barriers on RTD inputs. Includes ProfiBus communication module. Three Phase loads. (Approved for Zone 2 locations. RTDs may be placed in Zone 0/Zone 1/ Zone 2 locations)
RAYCHEM-DS-EU1481-Elexant4020i-EN-1905
10380-027
4020i-Mod-3P-ISPRF
1.2/2.6
nVent.com | 6
RTD Sensors Temperature Sensor with 2m flexible cable and M16 gland, PT100 Temperature Sensor with 5m flexible cable and M16 gland, PT100 Temperature Sensor with 10m flexible cable and M16 gland, PT100 Temperature Sensor with 2m MI Cable and Junction Box, PT100, ATEX Temperature Sensor with 2m MI Cable and M16 gland, PT100, ATEX
nVent RAYCHEM Supervisor Software
MONIPT100-260/2
MONIPT100-260/5
MONIPT100-260/10
MONI-PT100-EXE
MONI-PT100EXE-SENSOR
1244-006615 1244-020817 1244-020816 967094-000 529022-000
0.14/0.3 0.35/0.8 0.7/1.5 0.5/1.1 0.13/0.3
Available for download at www.nvent.com
RAYCHEM-DS-EU1481-Elexant4020i-EN-1905
nVent.com | 7
North America
Tel: +1.800.545.6258 Fax: +1.800.527.5703 Tel: +1.650.216.1526 Fax: +1.650.474.7711 thermal.info@nVent.com
Europe, Middle East, Africa
Tel: +32.16.213.511 Fax: +32.16.213.603 thermal.info@nVent.com
Asia Pacific
Tel: +86.21.2412.1688 Fax: +86.21.5426.2937 cn.thermal.info@nVent.com
Latin America
Tel: +1.713.868.4800 Fax: +1.713.868.2333 thermal.info@nVent.com
Our powerful portfolio of brands:
nVent.com CADDY ERICO HOFFMAN RAYCHEM SCHROFF TRACER
©2019 nVent. All nVent marks and logos are owned or licensed by nVent Services GmbH or its affiliates. All other trademarks are the property of their respective owners. nVent reserves the right to change specifications without notice.
RAYCHEM-DS-EU1481-Elexant4020i-EN-1905
8
Adobe PDF Library 15.0 Adobe InDesign CC 13.1 (Windows)