Lethal injuries caused by live parts with more
than 50 V!
Design and install the mains connection according to the valid standards.
Observe the protection goals
● Electrical safety
● Mechanical safety in the case of incorrect movements
● Protection against fire
Make sure you can provide evidence of the mechanisms of protection by
means of FMEA and hazard analysis.
Make use of the protection by mains contactors in the mains connection.
For the data for the rating of appropriate mains contactors incl. fuses and
cable cross section, see Project Planning Manual "Rexroth IndraDrive Supply
Units and Power Sections" → Chapter of the respective device → "Technical
Data" → "Basic Data" → table "Data for Mains Voltage Supply".
Using and Arranging an Additional
Mains Contactor
When the safety regulations require the circuit interruption in the mains con‐
nection to be carried out in redundant form, it is necessary to have additional
mains contactors in the mains connection.
Additional mains contactors are allowed at
● HMV supply units
● HCS drive controllers
Place the additional mains contactor electrically before:
● Mains filter
● Mains choke
● Mains contactor (integrated or externally installed)
● Mains input of supply unit or drive controller
Observe the following aspect for PLC programming:
The additional mains contactor must already have been connec‐
ted, before the request "power ON" is applied to the supply unit or
drive controller.
Input EIN2
If the supply unit is operated with an additional mains contactor,
the signal at the input EIN2 (X32.4) must be switched to level "L"
within the tolerated mains failure time, when this additional mains
contactor is switched off.
See also "F2819 Mains failure" in the firmware documentation
"Troubleshooting Guide"
At installations with additional mains contactor, there are 2 mains contactors
effective:
1. Integrated or external mains contactor of the supply unit or drive control‐
ler which is controlled by the circuit for mains connection
2. Additional mains contactor which is controlled by an independent circuit
(e.g., from a PLC)
Bosch Rexroth AG DOK-INDRV*-SYSTEM*****-PR06-EN-P
Rexroth IndraDrive Drive Systems with HMV01/02 HMS01/02, HMD01, HCS02/03
144/309
Circuits for the Mains Connection
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