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3. SIGNALS AND WIRING
3.11.3 Timing charts
(1) Servo-on (SON) command (from driver) ON/OFF
Tb [ms] after the servo-on (SON) signal is switched off, the servo lock is released and the servo motor
coasts. If the lock is made valid in the servo lock status, the lock life may be shorter. Therefore, when using
the lock in a vertical lift application or the like, set Tb to about the same as the lock operation delay time to
prevent a drop.
(95ms)
(95ms)
Electromagnetic
brake interlock
(MBR)
(Note 1) ON
ON
OFF
0 r/min
Base circuit
Servo motor speed
Servo-on (SON)
ON
OFF
Coasting
Tb
Electromagnetic
brake operation
delay time
Release
Position command
(Note 4)
Electromagnetic
brake
Release delay time and external relay (Note 2)
(Note 3)
0 r/min
Electromagnetic brake
sequence output
(parameter No. PC09)
Activate
OFF
Note 1. ON: Lock is not activated.
OFF: Lock is activated.
2. Lock is released after delaying for the release delay time of lock and operation time of external circuit relay. For the release
delay time of lock, refer to section 12.5.3, 12.6.3.
3. Give a position command after the lock is released.
4. For the position control mode.
(2) Forced stop (EM1) ON/OFF
Tb
Dynamic brake
Dynamic brake
Electromagnetic brake
Electromagnetic brake
Electromagnetic
brake interlock (MBR)
Electromagnetic brake
operation delay time
(210ms)
Electromagnetic brake release
(Note 1) ON
Base circuit
ON
OFF
Servo motor speed
Forced stop (EM1)
Invalid (ON)
Valid (OFF)
Deceleration starts after the forced stop (EM1) turns OFF. (Note 2)
Electromagnetic brake sequence
output (parameter No. PC09)
(210ms)
(10ms)
OFF
Note 1. ON: Lock is not activated.
OFF: Lock is activated.
2. The operation differs from the operation of LECSB
□
-
□
driver.
Lock operation
delay time
Lock
Lock
Lock
Lock release
Lock operation
delay time