Mitsubishi Electronics IB-1500193(ENG)-D ユーザーズマニュアル

5 - 38

Emergency stop in this section refers to the following states.

[1] Emergency stop was input (including other axis alarms)

[2] NC power down was detected

[3] A drive unit alarm was detected

With the MDS-D-SPJ3 spindle drive unit, the motor will decelerate following the time constant set at 

emergency stop. When the CNC confirms the zero speed of all axes, contactor of the spindle drive unit is 

turned OFF.

Set the time for stopping from the maximum motor speed (TSP) in the deceleration time constant for 

emergency stop (SV056: EMGt). When "0" is set, the deceleration stop is executed with "7000ms".

When an emergency stop occurs, the motor will decelerate at the same inclination from each speed.

(Note)

If the setting value of SP056 is longer than the value of SP055, the motor will coast.

【#13055】   SP055   EMGx   Max. gate off delay time after emergency stop

Set the time required to forcibly execute READY OFF after the emergency stop is input. 
Normally set to "20000". 
When "0" is set, READY OFF is forcibly executed with "7000ms". 
When the set time is shorter than the time to decelerate and stop, the spindle will stop with the 
dynamic brake after the set time is out. 

0 to 29900 (ms)

【#13056】   SP056   EMGt   Deceleration time constant at emergency stop

Set the time constant used for the deceleration control at emergency stop. Set the time required to 
stop from the maximum motor speed (TSP). 
When "0" is set, the deceleration control is executed with "7000ms". 

-29900 to 29900 (ms)

 

ON 

OFF

 

ON  

OFF

ON  

OFF

TSP

SP056

SP055

(EMG)

(ZSP)

(READY)

Forced READY OFF range  

Constant  inclination 

deceleration

Motor speed

Time

 

 

Deceleration control sequence

Emergency stop

Servo READY

Zero speed