14 - 24
14. ABSOLUTE POSITION DETECTION SYSTEM
14.9.4 Use of servo motor with an electromagnetic brake
The timing charts at power on/off and servo-on (SON) on/off are given below.
Preset parameter No.PA04/PD13 to PD16/PD18 of the servo amplifier to make the electromagnetic brake
interlock (MBR) valid. When the ABS transfer mode is ON, the electromagnetic brake interlock (MBR) set in
parameter No.PA04 is used as the ABS data bit 1.
Hence, make up an external sequence which will cause the electromagnetic brake torque to be generated by
the ABS mode (ABSM) and electromagnetic brake interlock (MBR).
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
95 [ms]
5 [ms]
Tb
95 [ms]
5 [ms]
Tb
Powe
r
s
upply
Servo-on
(SON)
A
BS transfer mode
(ABSM)
A
BS reques
t
(ABSR)
A
BS transmission
d
ata ready
(ABST)
Send (ABS) data
Base circuit
Ready
(RD)
Electromagnetic
brake interlock
(MBR)
Electromagnetic
brake torque
During transmission
of ABS
During transmission
of ABS
ABS data ABS data