KEB COMBIVERT F5 Instruction Manual page 75

Parameter Description - Basic Set Up
e) Digital serial communication LF.02 = SErSP
Serial communication is used to operate the drive in speed control
mode. The cyclic serial update rate at 56kbps is about 11mSec.
The default serial parameter channel assignments are listed below.
Other assignments are possible and are freely assigned via the serial
communication. Consult the manufacture for more information on
implementing this control scheme.
Digital commands to the drive
The command speed is a 16 bit signed value representing the motor
speed.
The control word is a 16 bit value which is used to digitally activate
the inputs (enable, direction, reset, etc).
The pre-torque is an 11 bit signed value which is used to provide
roll back compensation.
Digital commands from the drive
The actual speed is a 16 bit signed value representing the actual
motor speed as measured by the encoder.
The status word provides the status of the drive in addition to the
output conditions.
The actual torque provides the torque value back to the controller.
i
In this mode parameter changes on the keypad are locked out
while LF.3 = run or conF. Parameters can be viewed at any
time. With the car stopped, change LF.2 = StoP to change the
parameters manually via the keypad.
A short cut exists to toggle between run and Stop.
From whatever parameter is currently being viewed,
press and hold the FUNC and STOP button to change
LF.3=Stop. The display will show "Stop" and return to
the previous parameter. It is now possible to change
the parameter value. Press ENT to store the value.
Likewise, to toggle to run mode, press and hold
the FUNC and START key. The display will confirm
by displaying run and then return to the previous
parameter.
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