Hardware manual

Appendix A - How to find out the serial communication parameter values of your PC?
138
Crane control program fieldbus commands
Following commands are send to a slave (drive) by a fieldbus master (PLC).
Start the drive
The start sequence for the speed control is given in the table below.
Reset faults, if any. Set the drive to Ready to operate, then to Start operating. Give
speed reference. The motor accelerates until it is running at the reference speed.
To change direction give negative reference; follow steps below.
Stop the drive
1. Several stop modes are available. Stop modes are briefly described below. For
detailed description on the Control Word utilization look chapter ABB Drives profile;
Stopping on page 116. To stop the drive use the Main Control word as described in
the following examples.
2. OFF1: Stop along currently active deceleration ramp, ACS850 parameter 22.03 or
22.05. Proceed to OFF1 ACTIVE; proceed to READY SWITCH-ON. Brake ON.
Function: Drive ramps to a 0-speed and activates brake, field excitation is disabled.
To start again execute step 3.
Tool/Step
Crane control program supplement