6.5.4
XG3, motor temperature monitoring and motor holding brake
Dangerous movements! Danger to persons
from falling or dropping axes!
WARNING
The standard motor holding brake provided or an external motor holding
brake controlled directly by the drive controller are not sufficient on their own
to guarantee personal safety!
Personal safety must be achieved using higher-level, fail-safe measures:
●
Block off danger zones with safety fences or safety guards
●
Additionally secure vertical axes against falling or dropping after switch‐
ing off the motor power by, for example,
–
mechanically securing the vertical axes
–
adding external braking/arrester/clamping mechanisms
–
ensuring sufficient equilibration of the vertical axes
Lethal electric shock from live parts with more
than 50 V!
WARNING
The motor temperature evaluation input is not electrically isolated from the
housing. If excessive voltage is applied to the input (e.g., from motor winding
voltage flashover), this voltage can travel to the housing. Make sure the tem‐
perature sensor of the connected motor is double insulated from the motor
winding.
Risk of damage to device from excess volt‐
age at motor temperature evaluation input!
NOTICE
Only the allowed control voltage for the device is allowed at the motor tem‐
perature evaluation input. Excess voltage at the input can damage the de‐
vice.
Function
Connection point XG3 contains the connections for
●
Monitoring motor temperature
●
Controlling motor holding brake
Via an integrated contact element (BR), the power section
switches the voltage of the external 24 V supply to the output for
controlling the motor holding brake.
View
Connection
Signal name
Function
1
Motor temperature evalua‐
tion input
2
MotTemp-
3
+24 VBr
Output for controlling motor
holding brake
4
0 VBr
Tab. 6-38:
Pin assignment
Bosch Rexroth AG
DOK-INDRV*-KCU02+KSM02-PR03-EN-P
172/337
Rexroth IndraDrive Mi Drive Systems with KCU02 KSM02, KMS02/03, KMV03, KNK03
Connection points
LSA Control S.L. www.lsa-control.com [email protected] (+34) 960 62 43 01