Applied Motion RS-232 - Manual (Page 139)

139 920-0002 Rev. I
2/2013
Host Command Reference
MO - Motion Output
Compatibility: All drives
See also:
AO, BO, PL, SD commands
Defines the drive’s Motion Output digital output function. See the PL command for details on the in position
window setting. There are three Motion Output states that can be defined for all drives with the MO command:
MO1: Output is closed (energized) when motor is not moving.
MO2: Output is open (de-energized) when motor is not moving.
MO3: Output is not used as a Motion Output and can be used for another automatic output function or as a
general purpose output.
For all stepper drives there are 5 additional states available:
MO4: Output is used as a Tach Output at 100 pulses/rev with 1.8 degree step motor.
MO5: Output is used as a Tach Output at 200 pulses/rev with 1.8 degree step motor.
MO6: Output is used as a Tach Output at 400 pulses/rev with 1.8 degree step motor.
MO7: Output is used as a Tach Output at 800 pulses/rev with 1.8 degree step motor.
MO8: Output is used as a Tach Output at 1600 pulses/rev with 1.8 degree step motor.
For SV servo drives there are 7 additional states available:
MO4: Output is used as a Tach Output at 64 pulses/rev with 8 pole motor (8 times number of poles)
MO5: Output is used as a Tach Output at 128 pulses/rev with 8 pole motor (16 times number of poles)
MO6: Output is used as a Tach Output at 256 pulses/rev with 8 pole motor (32 times number of poles)
MO7: Output is used as a Tach Output at 512 pulses/rev with 8 pole motor (64 times number of poles)
MO8: Output is used as a Tach Output at 1024 pulses/rev with 8 pole motor (128 times number of poles)
MO9: Output is closed when in position based on encoder error
MO10: Output is open when in position based on encoder error
BLu, SV, STAC6, ST-Q/Si, STAC5-Q/IP, SVAC3-Q/IP
Output Y2 is the designated Motion Output.
ST-S, STM17-S/Q/C, STM23-Q/C, STM24-C
The one output of these drives (OUT) can be assigned to one of the five available functions: alarm output, brake
output, motion output, tach output, or general purpose output. Each of these functions must exclusively use
the output, so only one function is allowed. There are two ways to define the function of this output: via the ST
Configurator software or via the MO command.
STM24-SF/QF
Drives with Flex I/O allow a second parameter which allows the user to specify the I/O point used. Before an I/O
point can be used as a Motion Output it must first be configured as an output with the SD command.
Possible uses for the MO command on the STM24 are as follows (‘n’ denotes the I/O point to be used):
MO1n: Output is closed (active, low) when a Drive Fault is present.
MO2n: Output is open (inactive, high) when a Drive Fault is present.
MO3n: Output is not used as an Alarm Output and can be used for another automatic output function or as a
general purpose output.
MO4n: Output is used as a Tach Output at 100 pulses/rev with 1.8 degree step motor.
MO5n: Output is used as a Tach Output at 200 pulses/rev with 1.8 degree step motor.
MO6n: Output is used as a Tach Output at 400 pulses/rev with 1.8 degree step motor.
MO7n: Output is used as a Tach Output at 800 pulses/rev with 1.8 degree step motor.
MO8n: Output is used as a Tach Output at 1600 pulses/rev with 1.8 degree step motor.