IAI America SCON-CA - Manual (Page 111)

Chapter 3 Operation
101
[8] Brake release (BKRL)
Input
PIO signal
BKRL
Pattern 0 �
Pattern 1 (Note 1) �
Pattern 2 to 7 �
� : Available, �: Unavailable
Note 1 Pattern 1 does not have this feature
The brake can be released while BKRL signal is set to ON. If a brake is installed in the actuator,
the brake is automatically controlled by servo ON/OFF. Releasing the brake may be required to
move the slider and/or the rod by hand in case of installation of the actuator in the machine or
direct teach *1 .
This operation can be done by break release signal BKRL as well as the brake release switch
ON the front panel of the controller.
*1 Direct teaching : This operation is intended to get coordinate values to the position by
moving the slider and/or the rod by hand.
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.
[9] Battery Alarm (*BALM)
Input
PIO signal
*BALM
Common to Patterns
0 to 7
�
1) Battery alarm *BALM is set to ON in the normal absolute battery voltage or for an actuator
of incremental encoder specification.
2) *BALM is turned OFF if the absolute battery voltage drops to be less than 3.1V.
3) An alarm code 0EE “absolute encode error detection 2” occurs if the absolute battery
voltage drops to be less than 2.5V. The backup data cannot be held any more.
4) If Overload Warning Level Ratio is set to a value other than 100% in Parameter No.143,
the power turns OFF once the motor temperature exceeds the value in this parameter.
Lower the load level (by decreasing the acceleration speed, etc.).
Warning: If the machine is operated with the backup data erased, unintended motion
may occur to cause people to be injured and/or the actuator, the work and/or
the unit to be damaged.
If *BALM is turned OFF, replace the battery as soon as possible. [Refer to
Chapter 7 Absolute Reset and Absolute Battery.]
Use dedicated batteries.