Cause : Only two of the following can be used simultaneously: MTAC- 01 pulse encoder interface module, frequency input signal or frequency output signal.

Disable frequency output, frequency input or encoder:
• change transistor output to digital
mode (value of parameter 1804 TO
MODE = 0 [DIGITAL]), or
• change frequency input selection to
other value in parameter groups
11 REFERENCE SELECT,
40 PROCESS PID SET 1,
41 PROCESS PID SET 2 and
42 EXT / TRIM PID, or
• disable (parameter 5002ENCODER ENABLE)

and remove MTAC-01 pulse encoder interface module.