IAI America SCON-CA - Manual (Page 171)

Chapter 3 Operation
161
[10] Brake Forcible Release (BKRL)
Output
PIO signal
BKRL
The brake can be released while BKRL signal is turned ON.
For the actuator equipped with a brake, the brake can be controlled by turning the servo
ON/OFF, however, a release of the brake may be necessary in the case of installing the unit to
a system so the slider or rod can be moved by hand.
This operation can be performed not only by the brake release switch on the front panel of the
controller, but also by the brake release signal BKRL.
Warning: (1) Take sufficient care to release the brake. Inappropriate brake release
may cause people to be injured and/or the actuator, the work and/or the
machine to be damaged.
(2) After the brake is released, always make the brake applied again. Any
operation with the brake remaining released is extremely dangerous. The
slider or rod may drop to cause people to be injured and/or the actuator,
the work and/or the machine to be damaged.
[11] Overload Alarm/Light Error Alarm (*OVLW/*ALML)
Output
PIO signal
*OVLW/*ALML
Use this with changing the setting in Parameter No.151.
Setting Parameter No.151 to “0” changes to the overload warning output, and it turns OFF
when the motor temperature exceeds the rate set in Parameter No.143 “Overload Level Ratio”.
This signal will be ON as long as the motor temperature does not exceed the warning level.
Setting Parameter No.151 to “1” changes to the light failure alarm output, and it turns OFF
when a message level alarm is generated. This signal will be ON as long as the message level
alarm is not issued.