Feature
- Ground-fault monitoring device (IMD) for ungrounded DC drive systems (IT systems) in electric vehicles
- Continuous measurement of the insulation resistance 0…10 MΩ, factory-set preconfigured response values
- AC and DC IT systems up to 0…1000 V
- Short-circuit protected driver outputs for fault detection and PWM coded Iso measuring value
- Power supply suitable for 12 V and 24 V systems
- Suitable for 12 V and 24 V systems
- Automatic device self test
- Continuous measurement of the insulation resistance 0…10 MΩ
- – Response time for the first measurement of the system state (SST), < 2 s after switching the supply voltage on
- – Response time < 20 s for insulation resistance measurement (DCP)
- Automatic adaptation to the existing system leakage capacitance (≤1 μF)
- Detection of ground faults and interruption of the ground connection
- Insulation monitoring of AC and DC insulation faults for ungrounded systems (IT systems) 0…1000 V
- Undervoltage detection for voltages below 500 V (adjustable at factory by Bender)
- Short-circuit proof outputs for:
- – Fault detection (high-side output)
- – Measured value (PWM 5…95 %) and status (f = 10…50 Hz) at high or inverted low-side driver (MHS/MLS output)
- Protective coating (SL 1301ECO-FLZ)
Specification
- Insulation resistance: 0…10 MΩ
- Isolation withstand voltage: 3.5KV DC
- <500V under-voltage detection, system self-test function, fault detection and PWM encoding
