(3) Wiring of the lock release 
Install an unlocking switch for adjustment or recovery during an emergency of the electric actuator with 
lock. The switch (24 VDC, Contact capacity: 0.5A or more) should be obtained separately. 
One terminal of the lock release switch should be connected to the 24 VDC power supply and the other 
should be connected to the BK RLS terminal. When this is switched on, the lock will be released forcibly. 
 
Power supply plug 
 
 
 
 
 
(1) If the electric actuator is a non-lock type, it is not necessary to wire the BK RLS terminal. 
(2) Do not supply power to the BK RLS (lock release) during normal operation. 
The 24 VDC supply to the BK RLS (lock release) is only required for the adjustment and the recovery 
in the emergency. 
 
After the wiring of the power supply plug is completed, connect it to the CN1 connector of the controller. 
Please refer to “5.3 Wiring of power supply plug” for how to wire the power supply plug. 
 
Controller                               Power supply plug connected to CN1 
 
 
 
 
 
 
 
Power supply plug 
 
 
 
   
BK RLS 
EMG 
C 24V 
M 24V 
0V 
(External stop 
  circuit)