Bucher EMD G 0 Series, Hardware Manual

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Technical data
Control of MOBILE DCU S
Interlock
4
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300−I−9052003−EN−04/07.2021
4.4.3 Interlock
An HV interlock system monitors the correct connection of connectors in the HV supply of
a vehicle with the aim of preventing an electrical hazard due to unintentional, improper or
otherwise caused disconnection of an HV connector while the HV supply is switched on.
For this purpose, the HV system is equipped with a so−called pilot or interlock line (HVIL or
High Voltage Interlock Line). This is an LV signal that is routed via several connectors or
connections. If the circuit of the pilot line is interrupted by the removal of one of the
connectors and the resulting disconnection of the pilot contacts in the connector, this is
detected by the vehicle control unit and the control unit immediately opens the HV main
relay(s), thus switching off the HV system.
The MOBILE DCU S device has a fixed HVIL interlock connection in connector X2. The HVIL
interlock connection is disconnected when connector X2 is removed.
Interlock in connector X2 LV on−board supply system
12 V 24 V
Max. voltage V DC 60 60
InterLock−OK (closed)
Contact resistance
W
0
Max. current mA 500
4.4.4 Thermal sensor input
Thermal sensor input Value
Evaluable thermal sensors PT1000, KTY83/110, KTY84/130,
PTC acc. to DIN44081,
thermostat (normally−closed contact) acc. to
DIN44080
Diagnostics option Wire breakage/short circuit
Resistance measuring range
W
280 ... 3050
Measuring current mA max. 0.2
Limit frequency of input filter Hz 10
Resolution Bit 12
4.4.5 CAN bus
Public CAN and Private CAN communicate via a bus cable.
Public CAN, Private CAN
Protocol
Public CAN SAE J1939
Private CAN CANopen
Baud rate kbps 125, 250, 500
Max. cable length
at 125kbps m 250
at 250kbps m 250
at 500kbps m 100
Loop delay of all nodes ns <200