
Firmware
≤
02.00 - DMS 2.1 EN - 03/2011
L
189
8400 motec | Software Manual
Basic functions
Holding brake control
8.2.3
Process when brake is closed
1. The motor is braked when the setpoint is reduced by the user (e.g. turn down the
potentiometer, setpoint selection via CAN).
– The motor can also be braked by the "quick stop" or "DC-injection braking" function,
either directly requested by the user or as response to an error.
2. If the speed setpoint and the actual speed have fallen below the lower speed threshold
or only the speed setpoint has fallen below the lower speed threshold and the actual
value monitoring time has expired:
– For closing the brake, the
bBrkReleaseOut
trigger signal for triggering the power
output is set to FALSE.
– The
bBrkReleased
status signal is reset to FALSE.
– The elapse of the brake closing time starts.
3. After the brake closing time has elapsed, the controller is inhibited.
Time diagrams
[8-6]
Close holding brake in automatic mode via speed threshold (actual value = setpoint)
Feedforward control
n
: Switching threshold
o
p
q
: Application delay
r
: Application time
bBrkReleaseOut
0
0
bBrkReleased
CINH
t
t
t
t
0
nSpeedSetValue_a_
nSpeedSetValue_a
Summary of Contents for 8400 motec Series
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