Mitsubishi Electric MELSERVO-J5 MR-J5-G-N1 User Manual page 27

The commands issued to the servo amplifier are shown in the table below. Turn on the bits relative to the command.
0: Off 1: On : Either on/off can be used
Command Bit setting of Controlword command
Bit 7
Fault Reset
Shutdown 0
Switch On 0
Disable Voltage 0
Quick Stop 0
Disable Operation 0
Enable Operation 0
Fault Reset 0 → 1
*1 In order to avoid missing the command at the time of a communication error, maintain the state of Bit 7 = 1 on the Fault Reset command
for at least 10 ms when the communication cycle is 4 ms or less, or at least 20 ms when the communication cycle is 8 ms or less.
In order to transition from the "Switch on disabled" state to the "Operation enabled" state, it is necessary to give the
commands "Shutdown", "Switch On", and "Enable operation" sequentially. It is also possible to transition directly from the
current state to the target state with one command.
Current state
Switch on disabled
Switch on disabled
Ready to switch on
Bit 3 Bit 2
Enable Quick Stop
Operation
 1
0 1
 

0
0 1
1 1
*1
 
Command
Switch on
Enable operation
Enable operation
Bit 1 Bit 0
Enable Switch On
Voltage
1 0
1 1
0 

1
1 1
1 1
 
State after transition
Switched on
Operation enabled
Operation enabled
7 CiA 402 DRIVE PROFILE
7.1 PDS state transitions
Transition No.
(2), (6), (8)
(3)
(7), (9), (10), (12)
(7), (10), (11)
(5)
(4), (16)
(15)
25
7