Mitsubishi Electric MELSERVO-J4 MR-J4 TM Instruction Manual page 385

11. OPTIONS AND PERIPHERAL EQUIPMENT
(3) Timing chart
Servo motor speed
Present
Alarm
Absent
ON
Base circuit
OFF
ON
DB (Dynamic
brake interlock)
OFF
Disabled
Dynamic brake
Enabled
Short
Emergency
stop switch
Open
Coasting
a. Timing chart at alarm occurrence
Servo motor speed
Base circuit
MBR (Electromagnetic
brake interlock)
ALM (Malfunction)
Main circuit
Power
Control circuit
DB (Dynamic
brake interlock)
Dynamic brake
Note 1. When powering off, DB (Dynamic brake interlock) will be turned off, and the base
circuit is turned off earlier than usual before an output shortage occurs.
(Only when assigning the DB as the output signal)
2. Variable according to the operation status.
c. Timing chart when both of the main and control circuit power are off
Dynamic brake
b. Timing chart at Emergency stop switch enabled
(Note 1) 7 ms
ON
OFF
ON
OFF (Valid)
(Note 2)
15 ms to 60 ms
ON
OFF
ON
OFF
ON
OFF
Disabled
Enabled
11 - 92
Coasting
Dynamic brake
Coasting
Dynamic brake
Electro magnetic
brake interlock
10 ms
Electro magnetic
brake operation
delay time