Mitsubishi Electric Q Series Programming Manual page 184

7 TRANSMISSION MODULE
(o) When the "Clutch OFF" is set in the parameter "Error-time operation mode"
of drive module and a major error occurs in the output module, the operating
system software turns off the clutch.
The procedure to resume an operation after an error occurrence is shown
below.
1) Remove a major error factor.
2) Turn the clutch ON/OFF command device off.
It returns to normal state.
3) Turn the clutch ON/OFF command device on.
The clutch control of one-shot mode is resumed.
(p) The procedure to execute the axis servo ON/OFF or power supply OFF of
servo amplifier during operation is shown below.
1) Turn the clutch revolution OFF command device off, when the clutch
status is ON state, wait until the clutch status becomes OFF.
After the clutch status to be set to OFF state, the axis servo OFF
command becomes valid.
2) Execute the axis servo OFF command or the power supply OFF of servo
amplifier off.
(q) The procedure to resume an operation after the axis servo OFF or the power
supply OFF of servo amplifier during operation is shown below.
1) Turn the power supply of servo amplifier on.
2) Execute the axis servo ON command.
3) Turn the clutch ON/OFF command device on.
The clutch control of one-shot mode is resumed.
(5) External input mode
(a) The clutch ON/OFF control is executed by turning the clutch ON/OFF
command device on/off and external input (TREN signal: Synchronous
encoder start signal).
Since the input pulses from synchronous encoder are counted at leading
edge of external input, a high-speed response and high accuracy clutch
control is possible.
1) The clutch is set to the ON state at leading edge of external input (OFF
ON) after the clutch ON/OFF command device turns on.
2) When the clutch ON/OFF command device turns off, the clutch is set to
the OFF state after maximum 2 operation cycles.
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