5.20.3.2
Reconnecting the jumper J4
Reconnect the jumper J4 as described in the chapter "Inverting the logic of the digital inputs /
Reconnecting the jumper J4".
5.20.4
Triggering of the brakes
The signal for controlling the brakes is provided via a zero potential digital output (see "Digital
outputs"). This normally open contact can be used either by the control for further processing or
directly for switching the brake contactor (see
fi
g.).
Information
To achieve optimum travel and position behavior, the brakes must be
instantaneously
opened and
closed via this contact!
To reduce noises during brake disconnect, during normal operation the brakes should be switched to
the alternating current side (K4). The brakes are switched-off slower and thus quieter through the
recti
fi
er.
To ensure instantaneous brake application in emergencies, during inspection drives and return rides,
use a second contactor (K3), which disconnects the brakes from the direct current side. Integrate this
contactor into the safety circuit.
X-OUT
Ox4
Ox1
K4
K3
out
V+
1
in
2
Activating the brakes by the control system
1
Brake control
2
Safety circuit
X-OUT
Ox4
Ox1
K3
K4
out
V+
1
2
Actuating the brakes via the frequency inverter and control
1
Brake control
2
Safety circuit
CAUTION!
Attention!
The brakes must be protected with varistors against overvoltage from switching operations. The
varistor must lie directly on the coil or its connections.
Due to the high operating current, master contactors must be used to switch the brakes!
U
Y
~
-
+
~
N
L
K3
3 4
K3
1 2
K4
1 2
Brake control principle circuit diagram
Original operating instructions
ZAdyn4B 110-180
Electrical installation
R-TBA15_01-GB 2014 Index 005
Part.-No. 00163453-GB
47/200
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