Mitsubishi Electric RD77MS2 - Servo ON;OFF

8 CONTROL SUB FUNCTIONS
8.10 Servo ON/OFF
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8.10 Servo ON/OFF
Servo ON/OFF
This function executes servo ON/OFF of the servo amplifiers connected to the Simple Motion module.
By establishing the servo ON status with the servo ON command, servo motor operation is enabled.
The following two signals can be used to execute servo ON/OFF.
• All axis servo ON [Y1]
• [Cd.100] Servo OFF command (Buffer memory addresses: 4351+100n)
A list of the "All axis servo ON [Y1]" and "[Cd.100] Servo OFF command" is given below.
: Servo ON (Servo operation enabled)
: Servo OFF (Servo operation disabled)
When the delay time of "Electromagnetic brake sequence output (PC02)" is used, execute the servo ON to
OFF by "[Cd.100] Servo OFF command". (When all axis servo ON [Y1] is turned ON to OFF, execute the
servo OFF and turn off [Y1] after delay time passes.)
Refer to each servo amplifier instruction manual for details of servo ON command OFF and ready ON
command OFF from Simple Motion module.
Servo ON (Servo operation enabled)
The following shows the procedure for servo ON.
1. Make sure that the servo LED indicates "b".
(The initial value for "All axis servo ON [Y1]" is "OFF".)
2. Set "0" for "[Cd.100] Servo OFF command".
3. Turn ON "All axis servo ON [Y1]".
Now the servo amplifier turns ON the servo (servo operation enabled state). (The servo LED indicates "d".)
Servo OFF (Servo operation disabled)
The following shows the procedure for servo OFF.
1. Set "1" for "[Cd.100] Servo OFF command". (The servo LED indicates "c".)
(If the "[Cd.100] Servo OFF command" set "0" again, after the servo operation enabled.)
2. Turn OFF "All axis servo ON [Y1]".
(The servo LED indicates "b".)
• If the servomotor is rotated by external force during the servo OFF status, follow up processing is
performed.
• Change between servo ON or OFF status while operation is stopped (position control mode). The servo
OFF command of during positioning in position control mode, manual pulse control, home position return,
speed control mode, torque control mode and continuous operation to torque control mode will be ignored.
• When the servo OFF is given to all axes, "All axis servo ON [Y1]" is applied even if all axis servo ON
command is turned ON to OFF with "[Cd.100] Servo OFF command" set "0".
Setting item [Cd.100] Servo OFF command
Setting value "0" Command to servo
amplifier
Setting
value "1"
Command to servo amplifier
All axis servo ON: Y1 OFF  Servo ON command: OFF
Ready ON command: OFF
 Servo ON command: OFF
Ready ON command: OFF
ON  Servo ON command: ON
Ready ON command: ON
 Servo ON command: OFF
Ready ON command: ON