SMC Networks LECSN-T Series - Page 72

3. SIGNALS AND WIRING
3 - 21
(2) Timing chart
When EM2 (Forced stop 2) is turned off, the motor will decelerate according to [Pr. PC24 Forced stop
deceleration time constant]. Once the motor speed is below [Pr. PC07 Zero speed], base power is cut
and the dynamic brake activates.
0 r/min
ON
OFF (Enabled)
ON
OFF
Servo-on command
(from controller)
Ready-on command
(from controller)
ON
OFF
ON
OFF
ON
[Pr. PC24]
Deceleration time
Command
Ordinary
operation
Forced stop
deceleration
Dynamic brake
+
Electromagnetic brake
Zero speed
([Pr. PC07])
Base circuit
(Energy supply to
the servo motor)
Servo motor speed
MBR
(Electromagnetic
brake interlock)
Rated Speed
EM2 (Forced stop 2)
OFF (Enabled)
upper side
upper side
lock