Wiring Configuration For Torque And Stop Limit - Danfoss VLT AutomationDrive FC 301 Operating Manual

VLT® AutomationDrive FC 301/FC 302
Operating Guide
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Illustration 16: Wire Configuration for the Encoder

6.1.15 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. Programming of these drive connections is
shown in Illustration 17.
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).
Danfoss A/S © 2021.01
27 29 32 33 20
24 V or 10–30 V encoder
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Basic I/O Configuration
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