Sharp CP-SR421 User Manual download pdf (Page 62)

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3. SIGNALS AND WIRING

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3.6.2 Base circuit shut-off delay time function

The base circuit shut-off delay time function is used to maintain power at the motor for a specified time delay

after a forced stop activation (EM2 goes off). The time between completion of EM2 (Forced stop 2) or

activation of MBR (Electromagnetic brake interlock) due to an alarm occurrence, and the time at which the

base is cut, is the base cut delay time and is set by [Pr. PC02].

(1) Timing chart

MBR

(Electromagnetic

brake interlock)

OFF (Enabled)

Base circuit

(Energy supply to

he servo motor)

0 r/min

Servo motor speed

OFF (Enabled)

EM2 (Forced stop 2)

OFF

[Pr. PC02]

When the servo motor is moving and EM2

(Forced stop 2) turns off (activates), or

during the occurrence of an alarm, the

servo motor decelerates per the

deceleration time constant, next MBR

(Electromagnetic brake interlock) turns off

(activates), and then after the delay time

set in [Pr. PC02], the base signals in the

servo amplifier are cut (i.e. torque is

removed from the motor).

(2) Adjustment

While the servo motor is stopped, activate (turn off) EM2 (Forced stop 2), adjust the base cut delay time

in [Pr. PC02], setting the value to approximately 1.5 times the smallest delay time in which the servo

motor does not freefall.

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Sharp CP-SR421 User Manual Page 62

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