6.4 Control for motor holding brake
A 24V / max. 2A holding brake in the motor can be controlled directly by the servo amplifier.
This function does not ensure personnel safety! Hanging load (vertical axes) require an
additional mechanical brake which must be safely operated.
Check voltage drop, measure the voltage at brake input and check brake function (brake and
no brake).
The brake function must be enabled through the BRAKE parameter (setting: WITH BRAKE). In the
diagram below you can see the time and functional relationships between the ENABLE signal,
speed setpoint, speed and braking force.
During the internal ENABLE delay time of 100ms (DECDIS) the speed setpoint of the servo ampli
-
fier is internally driven down a 10ms ramp to 0. The brake output is switched on when the speed
5rpm (VELO) is reached or after 5s (EMRGTO) the latest.
The rise (tbrH) and fall (tbrL) times of the holding brake which is built into the motors are different
for the various types of motor (see motor manual).
A description of the interface can be found on page 50 .
26 SERVOSTAR
®
601...620 Instructions Manual
Technical description
07/2010 Kollmorgen
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