VSD Emergency Stop Setup
- Set b1-07 = 0 (default “Decelerate to Stop”)
From the External Device, connect the Common wire with the Com Terminal and the Normally Closed wire with DI3, D14 or D15 and then set the appropriate parameter based on the DI terminal used:
- Set the DI parameter = 44 (Emergency Stop): For DI3 set b3-02; for DI4 set b3-03; for DI5 set b3-04
- If the External Device is Normally Open, also change the DI terminal status (most Emergency STOP devices are Normally Closed): For DI3 set b3-25 = 00100; for DI4 set b3-25 = 01000; for DI5 set b3-25 = 10000
*When the terminal switches, the VSD stops within the shortest time. During the stop process, the current remains at the set current upper limit (to enable the VSD to stop in emergency state).
*When using a normal deceleration stoppage procedure and reducing the deceleration time to a very short time, a brake unit and/or resistor might be required to burn off the excess energy (not required for above Emergency Stop Procedure – only if stoppage time needs to be reduced even further than what is possible via the emergency stop).
- For VSDs more than 22KW, a brake unit and brake resistor is also needed.
- For VSDs up to 22kW a brake resistor is already built in, but an additional brake unit might be required depending on the application.
