Instruction manual
3.
SIGNALS
AND WIRING
3.8
Servo Motor with Electromagnetic Brake
(1)
Setting
Using parameter
No.33
(electromagnetic brake sequence output), set a time delay from electromagnetic
brake operation
to
base circuit shut-off as in the timing chart shown
in
(2)
in
this
section.
(2)
Operation timing
(a) Servo
on
signal command (from controller)
ON/OFF
Tb
after the servo-on signal is switched
off,
the base circuit is shut off and the servo motor coasts.
The following chart shows the way of holdmg the motor shaft in vertical
lift
applications.
*
Adjust
Tb
(parameter
No.
33)
to
minimize a
drop
after the servo-on signal is switched off.
-
Switch
off
the servo-on
signal
after the servo motor has stopped.
[,
Coasting
Servo motor speed
0
r'min
T
Base circuit
Electromagnetic
brake (CNP2-9)
Servo-on(S0N)
(b)
Emergency stop signal
(EMG)
ON/OFF
Dynamic brake
Electromagnetic brake
Servo
motor speed Electromagnetic brake release
I
I
,
I
I
I
Base circuit
-_--__--
-
iilectromagnetic brak++
180ms)
Electromagnetic Invalid(ON)
;operation delay lime
;
brake(CNP2-9)
(10ms)
__----_--
Forced stop(EMG)
-
-
-
-
- -
- -
- -
-
3-
43