8.13 Wiring Configuration for Torque and
Stop Limit
In applications with an external electro-mechanical brake,
such as hoisting applications, it is possible to stop the
drive via a standard stop command and simultaneously
activate the external electro-mechanical brake.
shows the programming of these drive
connections.
If a stop command is active via terminal 18 and the drive
is not at the torque limit, the motor ramps down to 0 Hz.
If the drive is at the torque limit and a stop command is
activated, the system activates terminal 29 output
(programmed to
[27] Torque limit & stop
). The signal to
terminal 27 changes from logic 1 to logic 0 and the motor
starts to coast. This process ensures that the hoist stops
even if the drive itself cannot handle the required torque,
for example due to excessive overload.
To program the stop and torque limit, connect to the
following terminals:
•
Start/stop via terminal 18
(
Parameter 5-10 Terminal 18 Digital Input
[8] Start
).
•
Quick stop via terminal 27
(
Parameter 5-12 Terminal 27 Digital Input
[2]
Coasting Stop, Inverse
).
•
Terminal 29 output
(
Parameter 5-02 Terminal 29 Mode
[1] Terminal 29
Mode Output
and
parameter 5-31 Terminal 29
Digital Output
[27] Torque limit & stop
).
•
Relay output [0] (Relay 1)
(
Parameter 5-40 Function Relay [32] Mechanical
Brake Control
).
12
13 18
37
32
27
19
29
33 20
+24 V
P 5-10 [8]
P 5-12 [2]
P 5-02 [1]
P 5-31 [27]
GND
P 5-40 [0] [32]
Rela
y 1
01 02 03
-
+
130BA194.11
External
24 V DC
Mechanical brake
connection
Start
I
max
0.1 Amp
Illustration 8.8 Wire Configuration for Torque and Stop Limit
Wiring Configuration Exampl...
Operating Guide
MG34U502
Danfoss A/S © 09/2018 All rights reserved.
79
8
8
Summary of Contents for VLT AutomationDrive FC 302
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