3. SIGNALS AND WIRING
3 - 49
3.7.2 Base circuit shut-off delay time function
The base circuit shut-off delay time function is used to prevent vertical axis from dropping at a forced stop
(EM2 goes off) or alarm occurrence due to delay time of the electromagnetic brake. Use [Pr. PC16] to set the
delay time between completion of EM2 (Forced stop 2) or activation of MBR (Electromagnetic brake
interlock) due to an alarm occurrence, and shut-off of the base circuit.
(1) Timing chart
When EM2 (Forced stop 2) turns off or an alarm occurs during driving, the servo motor will decelerate
based on the deceleration time constant. MBR (Electromagnetic brake interlock) will turn off, and then
after the delay time set in [Pr. PC16], the driver will be base circuit shut-off status.
(2) Adjustment
While the servo motor is stopped, turn off EM2 (Forced stop 2), adjust the base circuit shut-off delay time
in [Pr. PC16], and set the value to approximately 1.5 times of the smallest delay time in which the servo
motor shaft does not freefall.
To Next Page
Loading...
Need help?
General