BIM-M1000 Insulation Monitoring Device for AC/DC system

Feature

Insulation monitoring of unearthed AC/DC system;
Measure single-pole insulation fault in DC system (DC+ to earth and DC- to earth);
Measurement system-to-ground insulation fault in AC system (L1 and L2 to earth);
Two separately configurable response values;
Alarm signaling via LEDs and alarm relays;
Complies with IEC 61557-1 and IEC 61557-8;
Automatically adapt to system Y capacitance <20μF;
Programmable 2DI/ 2DO;
Voltage over-limit alarm function;
Up to 8 configurable alarm functions;
DC offset monitoring function;
Supports manual/automatic reset of fault and alarm information;
Supports RS485/ Modbus RTU communication;
Optional CANbus communication interfaces;

Application

AC and DC IT power distribution systems;
Industrial power and automation;
Battery packs and energy storage systems;
Electric vehicles and transportation;
Renewable energy generation systems;
DC charging stations for electric vehicles;

Specification

Supply voltage
Power supply	20-60Vdc, power consumption ≤ 5W
Frequency range	40~65Hz
Monitored IT system
Nominal system voltage	0…1000 Vac/dc
Frequency range	40~65Hz
Insulation resistance
Insulation resistance measurement range	0~30MΩ
Insulation resistance measurement accuracy	0~100 KΩ, C_Y≤ 2μF, Bus voltage stability: ±12 KΩ 100 kΩ~1 MΩ, C_Y≤ 2μF, Bus voltage stability: ±10 % 1 MΩ~30 MΩ, C_Y =0μF, Bus voltage stability: ±10 %
High voltage input internal resistance
When powered on (internal high-voltage relay closed)	Positive and negative poles to earth: 5.1 MΩ respectively
When powered off or not operating (internal high-voltage relay opened)	Positive and negative poles to earth: > 500 MΩ
Measuring circuit
Injection measuring voltage	±15V
Injection measuring current	<100µA
Injection pulse signal frequency	Self-adaptive, depending on the Y-capacitance (CY) value and insulation resistance value.
Permissible system leakage capacitance	≤20μF
Alarm relay output
Quantity	2* SPDT relay
Max. switching current	>100mA
Max. withstand voltage	12Vdc
Load capacity	5A@250VAC
Alarm-1 (IR pre-alarm)	Default 1000Ω, 0-5000Ω adjustable, But must< alarm value
Alarm-2 (IR alarm)	Default 500Ω, 0-5000Ω adjustable
Relay input
Quantity	2*DI for reset/ test, NO, active dry contact, with internal 15Vdc pull-up voltage
Load capacity	Ri<500Ω turn on, Ri> 100KΩ turn off
Withstanding voltage
Standard version High voltage to low voltage: 3500Vdc; 2500Vac (rms) CAN to high voltage: 3500Vdc; 2500Vac (rms)
Standard version High voltage to low voltage: 7000Vdc; 5000Vac (rms) CAN to high voltage: 7000Vdc; 5000Vac (rms)
Communication
RS485 interface	Modbus RTU protocol
Canbus interface（optional）	Custom protocol
Environment
Working temperature	– 40°C ~85°C
Storage temperature	– 40°C ~85°C, humidity: 5~95%RH
Others
Standards	IEC 61557-1:2018 and IEC 61557-8:2018
Installation method	Standard 35mm Din-rail mounting
Dimension	WHD: 10811066mm