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Lenze · 8400 HighLine · Reference manual · DMS 12.0 EN · 06/2017 · TD23
607
8
Basic drive functions (MCK)
8.12
Holding brake control
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Outputs
Tip!
For direct triggering of a holding brake, the high current output of the 8400 HighLine
inverter can be used that can switch max. 2.5 A. For this purpose, connect the
bMBrakeReleaseOut
trigger signal to the
bOutHC
input of the SB
From version 15.00.00
, the
bOutHC_BrakeApplied
status signal of the SB
can be used for a simple monitoring of the switching status of a holding brake connected
to the high current output.
Switching status of the motor holding brake at the high
bMBrakeApplied
BOOL
(from version 06.00.00)
Input for status detection via switching contacts at the brake
• Only effective if bit 5 in
is set to "1".
FALSE Brake is released.
TRUE Brake is applied.
Designator
Data type
Value/meaning
bMBrakeReleaseOut
BOOL
Trigger signal for switching element holding brake control via a digital output
• Use bit 0 under
to activate inverted switching element triggering.
FALSE Apply brake.
TRUE Release brake.
bMBrakeReleased
BOOL
"Brake released" status signal considering the brake release time
• When the holding brake is triggered to close,
bMBrakeReleased
is immediately set
to FALSE even if the brake closing time has not yet elapsed!
TRUE Brake released (after the brake release time has expired).
Stop!
The digital outputs are not suitable for the "direct" control of a holding brake!
• Connect the digital output connected to the trigger signal
bMBrakeReleaseOut
with a
relay or power contactor which switches the brake supply.
• When a power contactor is used, the response and release time of the earth contact is
added to the response and release time of the brake. Both times must also be
considered for parameterising the closing and opening time of the holding brake
Designator
Data type
Information/possible settings