IAI America ERC3 - Manual (Page 256)

Chapter 4 Operation
4.3
O
per
at
io
n
in
P
ul
se
T
rai
n
Co
nt
ro
l M
od
e
(Ho
w
to
O
per
at
e
Pulse
Train Control
Type)
246
[3] Power Supply and Emergency Stop Release (CP, MP, EMG)
···········································································[Refer to 3.2.3 Circuit Diagram]
1) Supply the control power (CP, CP_GND), first.
2) Secondly, turn ON the motor power source (MP, MP_GND) and the emergency stop signal
EMG at the same time. Do not attempt to turn ON the emergency stop signal EMG prior to
the motor power source.
Controller can be available for an operation by the emergency stop signal EMG being
turned ON.
3) When the emergency stop signal EMG turns OFF, the servo is turned OFF if it is ON. Cut
the motor power supply (MP, MP_GND) OFF at the same time. Do not attempt to cut the
motor power supply (MP, MP_GND) OFF before the emergency stop signal EMG is turned
OFF.
If the servo turns OFF, the positioning complete signal INP is turned OFF. If the actuator is
equipped with a brake, the brake gets in the operational condition.
[4] Brake Release BK··············································[Refer to 3.2.3 Circuit Diagram]
This is a signal to compulsorily release the brake of the actuator equipped with a brake.
The brake in the actuator is a non-excitation operation type electromagnetic brake. In a normal
operation, it automatically releases the brake with the servo ON and gets to the brake operating
status with the servo OFF.
There may be a case that the brake needs to be released to move the slider or rod manually by
hand when installing the unit to the system or having a direct teach *1 . In such cases, turn this
signal ON. The brake can be released while signal is turned ON.
*1 Direct teach : 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.
(3) Make certain that this signal is turned OFF (brake is activated) when the
power is supplied to the controller. Leaving the power ON may cause a
drop of the slider or rod, results in an injury or damage of the actuator
unit, work piece or devices.