Motor Holding Brake - Kollmorgen SERVOSTAR 300 Instruction Manual

Kollmorgen
6.3

Motor holding brake

A 24V / max.1.5A holding brake in the motor can be controlled directly by the amplifier.
No functional safety! Danger by falling load (in case of suspended load,
vertical axes). An additional mechanical brake is required for funktional
safety, which must be safely operated.
The brake only works with sufficient voltage level (ð p.27). 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 setting (screen page: Motor). In
the diagram below you can see the timing and functional relationships between the
ENABLE signal, speed setpoint, speed and braking force. All values can be adjusted with
parameters, the values in the diagram are default values.
Analog-In
X3/4-5
ENABLE
X3/15
SW internal
Speed
ENABLE
internal
BRAKE
X9/2-1
Braking force
STO-ENABLE
X4/5
During the internal ENABLE delay time of 100ms (DECDIS), the speed setpoint of the
servo amplifier is internally driven down an adjustable ramp to 0V. The output for the
brake is switched on when the speed has reached 5 rpm (VELO), at the latest after 5 sec-
onds (EMRGTO).
The release delay time (t
built into the motor are different for the various types of motor (see motor manual), the
matching data are loaded from the motor database when the motor is selected.
A description of the interface can be found on page 64.
S300 Instructions Manual
CAUTION
U
U
U
n
max.5s
U
U
F
U
) and the engage delay time (t
brH
02/2017
emergency stop
ramp
DECDIS
VEL0
EMRGTO
TBRAKE
tbrH
Technical description
TBRAKE0
ramp
tbrL
) of the holding brake that is
brL
t
t
t
t
t
t
t
t
29