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Bender isoCHA425-D4-4 eMobility insulation monitor Password
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Highlights & Details
Insulation monitoring isoCHA425-D4-4
- Monitoring of the insulation resistance of DC charging stations according to the Japanese CHAdeMO charging standard
- Detection of single-pole insulation faults in the DC mains voltage range between 50 V and 400 V within 1 s.
- Detection of two-pole insulation faults within 10 s.
- Measurement of the mains voltage (true r. m.s) with under/over voltage detection
- Measurement of the DC voltages line to earth (L+/PE and L-/PE)
- Automatic adaptation to the mains discharge capacity up to 2 μF
- Start-up, on-delay and off-delay can be set
- Two separately adjustable response value ranges of 5…250 kΩ (Alarm 1, Alarm 2)
- Alarms are output via LEDs (AL1, AL2), a display and alarm relay (K1, K2)
- Automatic device self-test with connection monitoring
- Idle or working current behavior of the relays can be selected
- Measured value display via multifunctional LC-display
- Fault storage can be activated
- RS-485 (galvanically isolated) with the following protocols:
- – BMS interface (Bender-Meter interface) for data exchange with other Bender components
- – Modbus RTU
- – IsoData (for continuous data output)
- Password protection against unauthorized modification of parameters
Technical specifications
- Rated voltage: 400 V
- Over voltage category III
- Measuring circuit: (IC1)
- Supply circuit: (IC2)
- Output circuit: (IC3)
- Control circuit: (IC4)
- Test surge voltage:
- IC1/(IC2-4) 6 kV
- IC2/(IC3-4) 4 kV
- IC3/IC4 4kV
- Rated insulation voltage:
- IC1/(IC2-4) 400V
- IC2/(IC3-4) 250 V
- IC3/IC4 250V
- Pollution level 3
- Safe separation (reinforced insulation) between:
- IC1/(IC2-4): OVERVOLTAGE CATEGORY III, 600 V.
- IC2/(IC3-4): OVERVOLTAGE CATEGORY III, 300 V.
- IC 3/IC4: OVERVOLTAGE CATEGORY III, 300 V.
- Voltage tests (stub test) according to IEC 61010-1:
- IC2/(IC3-4): AC 2.2 KV
- IC 3/IC4 2.2 KV AC
- Supply voltage US: AC 100…240 V/DC 24…240 V.
- Tolerance of US: -30…+15%
- Frequency range US: 47…63 Hz
- Own consumption: ≤ 3 W, ≤ 9 VA
- Monitored IT system
- Nominal line voltage UN: DC 50…400 V.
- Tolerance of UN: +25 %
- Measuring circuit
- Measuring voltage at: ± 12 V.
- Measuring current in at RF, ZF = 0: ≤ 110 μA
- Internal resistance Ri, Zi: ≥ 115 kΩ
- Permissible mains leakage capacity CE: ≤ 2 μF
- Start-up delay t: 0…10 s (0 s)*
- On-delay sound: 0…99 s (0 s)*
- Off-delay toff: 0…99 s (0 s)*
- Display: LC-display, multi-functional, non-illuminated
- Display range Measuring value Insulation resistance (RF): 1 kΩ…2 MΩ
- Operational uncertainty RF: ±15%, minimum ±2 kΩ
- Display range Rated line voltage (UN) measured value: 50…400 VRMS
- Operational uncertainty: ±5%, minimum ±5 V.
- Display range measured value line leakage capacity at RF > 10 kΩ (dc mode only): 0…17 μF
- Operational uncertainty at RF ≥ 20 kΩ and CE ≤ 5 μF: ±5%, minimum ± 0.1 μF
- Password: off/0…999 (off/0)*
- Error memory Alarm messages: On/(off)*
- Interface/protocol: RS-485/BMS, Modbus RTU, isoData
- Baud rate: BMS (9.6 kBit/s), Modbus RTU (adjustable), isoData (115.2 kBits/s)
- Cable length: (9.6 kBits/s) ≤ 1200 m.
- Cable: Twisted in pairs, shield on one side at PE min. J-Y(St)Y 2 x 0.6
- Terminating resistor 120 Ω (0.25 W), internal, connectable
- Contacts: 2 x 1 NO, common terminal 11
- Operation: Quiescent current/working current (quiescent current)*
- Electrical life at rated conditions: 10000 operations
- Connection type: Spring terminal
- Nominal current ≤ 10 A.
- Wire sizes AWG 24-14
- Operating mode: Continuous operation
- Installation position: Cooling slots must be ventilated vertically
- Protection class installation (DIN EN 60529): IP30
- Protection class terminals (DIN EN 60529): IP20
- Housing material: Polycarbonate
- Quick fixing on top hat profile rail: IEC 60715
- Screw fixing: 2 x M4 with mounting clip
- Product type
eMobility insulation monitor
- Authorisation
Password
- Weight
150 g
Documents & Downloads
Datasheet
Datasheet 2372868 Bender isoCHA425-D4-4 eMobility insulation monitor Password
User & Safety Instructions
User & Safety Instructions 2372868 Bender isoCHA425-D4-4 eMobility insulation monitor Password
Description
The ISOMETER® is used for DC charging stations according to the Japanese CHAdeMO charging standard for voltages between 50 V DC and 400 V. Single-pole insulation faults are reported with a response time of ≤ 1 second. Two-pole insulation fault within 10 seconds. The maximum permissible mains leakage capacity CE is 2 μF. Individual parameterization means that adaptation to the plant and operating conditions must always be carried out on site in order to meet the requirements of the standards. Observe the limits of the application area specified in the technical data. Any other use or use beyond this is considered to be improper
DC charging stations for electric vehicles according to the Japanese charging standard CHAdeMO
The ISOMETER® measures the effective value (TrueRMS) of the mains voltage UN between L+ and Las well as the DC voltages between L+ and earth (UL+e) and between L- and earth (UL-e). It determines the fault location "R%", i.e. the distribution of the insulation resistance between the L+ and L- conductors from a minimum line DC voltage, and indicates this with a "+" or "-" sign for the insulation resistance value. The value range of the error location is ±100 %:
Display / meaning
-100 % / one-sided error at conductor L.
0 % / symmetrical error
+100 % / one-sided fault on conductor L+
The ISOMETER® uses the RS-485 serial hardware interface with the following protocols:
• BMS
The BMS protocol is an integral part of the BenderMeter interface (BMS bus protocol). Data is transferred using ASCII characters.
• Modbus RTU
Modbus RTU is an application layer messaging protocol that provides master/slave communication between devices that are connected together via bus systems and networks. Modbus RTU messages have a 16-bit CyclicRedundant Checksum (CRC) that ensures reliability.
• IsoData
The ISOMETER® continuously transmits an ASCII data string with a clock cycle of approx. 1 second. Communication with the ISOMETER® is not possible in this mode and no further transmitters may be connected to the RS-485 bus cable. The parameter address, baud rate, and parity for the interface protocols are configured in the out menu.
This text is machine translated.
DC charging stations for electric vehicles according to the Japanese charging standard CHAdeMO
The ISOMETER® measures the effective value (TrueRMS) of the mains voltage UN between L+ and Las well as the DC voltages between L+ and earth (UL+e) and between L- and earth (UL-e). It determines the fault location "R%", i.e. the distribution of the insulation resistance between the L+ and L- conductors from a minimum line DC voltage, and indicates this with a "+" or "-" sign for the insulation resistance value. The value range of the error location is ±100 %:
Display / meaning
-100 % / one-sided error at conductor L.
0 % / symmetrical error
+100 % / one-sided fault on conductor L+
The ISOMETER® uses the RS-485 serial hardware interface with the following protocols:
• BMS
The BMS protocol is an integral part of the BenderMeter interface (BMS bus protocol). Data is transferred using ASCII characters.
• Modbus RTU
Modbus RTU is an application layer messaging protocol that provides master/slave communication between devices that are connected together via bus systems and networks. Modbus RTU messages have a 16-bit CyclicRedundant Checksum (CRC) that ensures reliability.
• IsoData
The ISOMETER® continuously transmits an ASCII data string with a clock cycle of approx. 1 second. Communication with the ISOMETER® is not possible in this mode and no further transmitters may be connected to the RS-485 bus cable. The parameter address, baud rate, and parity for the interface protocols are configured in the out menu.
This text is machine translated.