High Voltage Isolation Monitoring IMD Insulation Monitoring Device for Electric Vehicles (EV/HEVs) and Charging Stations

Product Description

The SIM series Insulation Monitoring Device (IMD) is designed for continuous active monitoring of unearthed (Isolated Terra) DC systems including charging stations, electric vehicles, and any other system with a nominal operation above 60VDC.

The SIM series is UL2231 recognized to ensure safety at the highest standards and responds to electric hazards quickly and reliably with a patented signal injection algorithm and processing for continuous "Always On" monitoring of insulation.

 

Feature

 Safety

Continuous, "always-on" system monitoring of insulation
Dedicated fault state output (1X digital out, 1 X PWM)
Stored capacitive energy monitoring
Digital out to indicate internal IMD error

Usability

Warning alarm with configurable level
Fault alarm at 100Ω/V (Configurable fault threshold available; See Ordering Options)
Configurable CAN ID

Performance

Modular CAN 2.0B interface
Robust self-diagnosis of monitoring functions

 

Specification

 

Model	SIM100MLP	SIM100MOD	SIM200
Feature	• Applied to electric vehicles (EV/HEV) and charging stations • Measure the voltage of each battery terminal relative to the chassis • Power supply: +4.8 to +53 Vdc • Patented algorithm	• Charging stations, electric vehicles, and other systems (trucks and buses) with a rated voltage higher than 60VDC • Measurement between the high-voltage bus and the vehicle body chassis • Power supply: 9 - 30Vdc • Signal injection method • Fault: 100 Ω/V; Warning: 500 Ω/V • Equipment LED alarm • Fault status output (1 DO, 1 PWM)	• EV/HEV power battery high-voltage systems, hydrogen vehicle high-voltage systems, energy storage systems, other DC floating-ground systems, AC floating-ground systems, etc. • Power supply: 9 - 36Vdc • Signal injection method ±15 V • Fault: 500 Ω/V; Warning: 1000 Ω/V • Equipment LED alarm • One alarm output (opto-coupler output)
Working voltage	L - 100 V K - 1100 V N - 1500 V	L - 100 V M - 960 V N - 1500 V	60 V - 1500 V N: 1000 - 1363V K: 600 - 1000V P: 300 - 510V Q: 60 - 140V
Resistance monitoring /accuracy/capacitance	Resistance: 0 - 2.727 MΩ Accuracy: ±5% at 100 kΩ - 500 kΩ, battery voltage > 15 V. Capacitance: maximum 2 μF	2.72 MΩ 2.72 MΩ 1 MΩ 0.2 MΩ ±5% ±5% ±5% ±3%	4.2μF 4.2μF 14.2μF 14.2μF
Withstand voltage level	CAN interface to chassis: 3 kV	Can and high-voltage side: 3 kV	Can and high-voltage side: DC 3.5 Kv, AC: 2.5Kv
Communication	CAN 2.0B isolated 120 Ω terminating resistor A = 500kbit/s (applied to 100V) B = 250kbit/s	CAN communication, 120 Ω terminating resistor Default 250 kbps (adjustable)	-
Certification	ISO 6469-3:2011-12 (Protection against electric shock to persons) UL 2231-1, UL2231-2 (Personnel electric shock protection in electric vehicle (EV) charging systems) IEC 61557-8 IEC 61557-A (Supplementary standard) CFR 571.305	UL2231-2 IEC 61557-8	UL2231-2 IEC 61557-8
Other	• Dimensions: 102*60mm • Built-in temperature sensor • Active and zero-voltage monitoring: Can accurately measure system insulation even when the battery is active and under load (charging or discharging) or the system is not powered (SIM200 only)	• Bare board: 120*60mm • Can be used in AC systems	-

  

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