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Bosch Rexroth AG
Instructions for Use
Properties
5.2.11
Terminal Block, 24V - 0V (24V Supply)
Function, Pin Assignment
K1
External mains contactor
L, N
Supply voltage for mains contactor control
Fig.5-28:
X34, X40 Connection Diagram - Block Diagram
Mains contactor cannot be switched on in spite of "VM bb" !
In spite of the display "VM Bb" or "VM bb", it can sometimes be
impossible to switch the mains contactor on.
Possible cause:
This can be caused by a defective external mains contactor with,
for example, contacts stuck together. The error message "F2837
Contactor monitoring error" cannot be diagnosed in such cases.
With contacts of the main circuit stuck together, the N/C contact
(X40.1/2) remains open in the position of rest and the switch-on
circuit is thereby interrupted.
Remedy:
Check and, if necessary, replace the external mains contactor.
Data
Number of poles
Type
Design
Connection cable solid wire
Connection cable stranded wire
Fig.5-29:
Properties
Connection of external 24V supply:
24V supply of HMV supply units
●
For the integrated electronics
●
For the 24V interface of the mains connection for ON/OFF control
DOK-INDRV*-HMV01******-IT01-EN-P
Rexroth IndraDrive Supply Units HMV01
Unit
Min.
Typ.
4
Spring terminal
Pins on device
0,5
mm
2
0,5
mm
2
AWG
20
Max.
1,5
1,5
16
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