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Electrical connection

The module is equipped with separate input terminals for the motor voltage and the logic control voltage (24V DC). We recommend connecting the terminals to two separate power supplies so that the logic control continues to operate even if there is an overload at the motor, ensuring that the motor status is known at all times. For modules with a motor voltage > 24V DC, the connections must be separated as the logic control voltage must be between 18 and 32V DC.

Risk of permanent damage to the electronics! When using separate power supplies, provide for potential equalization between the two supply systems (connect earth conductors).


With separate power supply lines to the logic control and the motor, the control can switch off the power to the motor by means of a relay, while the module remains activated through the bus system.


The motor must be supplied through a power supply unit, which provides the current required by the respective module. All cables must have the necessary cross-section.
The voltage drop along the cable can be calculated with the following formula:
DELTA U=(2*I*l)/(gamma * A) where :
I: Current consumption of motor
l: Length of line
gamma: Electrical conductivity
Cu: gamma = 56(m)/(OMEGA * mm^(2))
Al: gamma = 35(m)/(OMEGA * mm^(2))
A: Conductor cross-section

The upper description does not apply for the SRV image processing sensor, for which the specific user's manual is to be consulted. The present document describes, in conjunction with the SRV, only the communication with the SCHUNK Motion Protocol via the serial RS232 connection, see ,,SRV image processing sensor''.