Danfoss MCO 305 Design Manual page 102

MCO 305 Design Guide
CSTART
Summary Starts the speed mode
Syntax CSTART
Description The CSTART command is starting the drive in speed control mode.
Acceleration/deceleration, as well as the speed should be set via the ACC, DEC and
CVEL commands prior to starting.
CSTART does not contain the command MOTOR ON which turns on the motor
control. When using CSTART an explicit calling up of MOTOR ON is necessary after
previous use of MOTOR OFF.
NB!:
If no speed value has been defined via CVEL before the beginning of CSTART, then
the default velocity 0 is used – this means that the motor will not rotate, but the
PID controller is active.
All CVEL commands following the start of speed mode will be carried out
immediately, i.e. a corresponding speed change will take place immediately, with
the defined acceleration or deceleration (ACC/DEC).
Command Group ROT
Cross Index ACC, DEC, CVEL, CSTOP
Syntax Example CSTART
Program Sample CMODE_01.M
CSTOP
Summary Stops the drive in speed mode
Syntax CSTOP
Description Via the CSTOP command, the speed mode is terminated and the positioning mode
is started, whereby a still rotating axis is stopped the deceleration defined with DEC
and the motor is held in the stop position.
NB!:
A CSTOP command carried out in the positioning mode can also cause an abrupt
termination of the positioning procedure.
Command Group ROT
Cross Index ACC, DEC, CVEL,
Syntax Example CSTOP
Program Sample CMODE_01.M
102
__ Software Reference __
/* rpm mode start */
CSTART
/* rpm mode stop */
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