11. OPTIONS AND AUXILIARY EQUIPMENT 
 
11 -  87 
 
(3) Timing chart 
Servo motor speed
Coasting
larm
ON
OFF
EMG stop switch
Absent
Invalid
Valid
Short
Open
a. Timing chart at alarm occurrence b. Timing chart at EMG stop switch validity
Dynamic brake
Base circuit
ON
OFF
Coasting
Dynamic brake
Dynamic brake
Present
DB (Dynamic
brake interlock)
 
(Note 2) 15 ms to 60 ms
(Note 1) 7 ms
10 ms
Dynamic brake
Coasting
Electro magnetic 
brake interlock
Electro magnetic
brake operation
delay time
MBR 
(Electromagnetic 
brake interlock)
Base circuit
ON
OFF
Servo motor speed
ALM (Malfunction)
Main circuit
Control circuit
ON
OFF
Power
Dynamic brake
ON
OFF
ON
OFF (Valid)
ON
OFF 
Invalid
Valid
DB (Dynamic 
brake interlock)
 
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