Xg03, Motor Temperature Monitoring And Motor Holding Brake - Bosch rexroth ctrlX SAFETY SafeMotion Applications Manual

ctrlX SAFETY "SafeMotion"
268 / 302
Motor connections
13.3.3

XG03, motor temperature monitoring and motor holding brake

Important information
Motor holding brake: Installation instructions
Make sure the power supply is sufficient for the motor holding brake at the
motor. Take into account that voltage drops on the supply line. Use connection
lines with the largest possible cross section of single strands.
Use an external contact element in accordance with the required safety cate-
gory if you wish to supply motor holding brakes with higher currents than
the current load allowed at the connection point. Make sure to comply with
the required minimum current consumption of 100 mA when using an external
contact element. Otherwise, the brake current monitoring function will signal
an error.
Function
The connection point contains the connections for
● monitoring the motor temperature
● controlling the motor holding brake
Bosch Rexroth AG
Dangerous movements! Danger to persons from falling or
WARNING
dropping axes!
The standard equipment motor holding brake or an
external holding brake controlled by the drive controller
is not sufficient to guarantee personal safety!
Personal safety must be achieved using higher-ranking,
fail-safe measures:
−
Block off danger zones with safety fences or safety
guards.
−
Additionally secure vertical axes against falling or
dropping after switching off the motor power by, for
example,
−
mechanically securing the vertical axes
−
external braking/arrester/clamping mechanism
−
ensuring sufficient counterweight for the vertical
axes
Lethal electric shock from live parts with more than
WARNING
50 V!
The input of the motor temperature evaluation is not gal-
vanically isolated from the housing. Excess voltage at the
input (e.g., by the motor winding voltage flashing over)
can get to the housing. Make sure that the temperature
sensor of the connected motor is double-insulated from
the motor winding.
Risk of damage to device from excess voltage at motor
NOTICE
temperature evaluation input!
Only the allowed control voltage for the device is
allowed at the motor temperature evaluation input.
Excess voltage at the input may damage the device.
R911404905, Edition 02