User guide
Command Inputs    CME 2 User Guide 
78  Copley Controls 
Count Up/Count Down Format 
In the count up/count down format, one input takes each pulse as a positive step 
command, and another takes each pulse as a negative step command, as shown below. 
Up Input 
Velocity 
Command 
Down Input 
The amplifier can be set to increment position on the rising or falling edge of the signal. 
Stepping resolution can be programmed for electronic gearing. 
Quadrature Format 
In quadrature format, A/B quadrature commands from a master encoder provide velocity 
and direction commands, as shown below. 
B Input
Velocity
Command
A Input
The ratio can be programmed for electronic gearing. 
7.4: Software Programmed Input Settings 
These settings can be saved to flash to allow default conditions to be set and used when 
the amplifier is powered up or reset. 
!
DANGER 
Potential for unexpected movement. 
If Programmed Velocity or Programmed Current are set to values other than 0, 
the motor will move after power-up or reset if the amplifier is hardware enabled.  
Failure to heed this warning can cause equipment damage, injury, or death. 










