MDS-E/EH Series Instruction Manual
5 Servo Adjustment
299
IB-1501229-F
(2) Deceleration control stop distance
The stopping distance Lemg when the motor is stopped with deceleration control during an emergency stop can be
approximated with the following expression. Note that the value will be higher than this if the current is limited during
deceleration.
F
:Feedrate during emergency stop (mm/min)
rapid
:Rapid traverse rate (mm/min)
PGN1
:Position loop gain 1 (SV003) (rad/s)
EMGt
:Deceleration time constant for emergency stop (SV056) (ms)
POINT
1. Deceleration control will not take place when a servo alarm, for which the stopping method is dynamic, occurs.
The motor will stop with dynamic braking regardless of the parameter setting.
2. If the power fails and the deceleration time constant is set to a relatively long time, the braking method may change from
deceleration control to dynamic braking due to a drop in the bus voltage in the drive unit.
CAUTION
If the deceleration control time constant (EMGt) is set to a value longer than the acceleration/deceleration time
constant, the soft limit point (stroke end point) may be exceeded.
Take care as the axis could collide the machine.
L
emg
=
F
PGN1 x 60
+
1
2
F
60
F x EMGt
rapid
x
1000
(mm)
×
×
Summary of Contents for MDS-E
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Page 32: ...1 IB 1501229 F 1 Installation ...
Page 76: ...45 IB 1501229 F 2 Wiring and Connection ...
Page 132: ...101 IB 1501229 F 3 Safety Function ...
Page 142: ...111 IB 1501229 F 4 Setup ...
Page 277: ...MDS E EH Series Instruction Manual 4 Setup 246 IB 1501229 F ...
Page 278: ...247 IB 1501229 F 5 Servo Adjustment ...
Page 351: ...MDS E EH Series Instruction Manual 5 Servo Adjustment 320 IB 1501229 F ...
Page 352: ...321 IB 1501229 F 6 Spindle Adjustment ...
Page 404: ...373 IB 1501229 F 7 Troubleshooting ...
Page 455: ...MDS E EH Series Instruction Manual 7 Troubleshooting 424 IB 1501229 F ...
Page 456: ...425 IB 1501229 F 8 Maintenance ...
Page 475: ...MDS E EH Series Instruction Manual 8 Maintenance 444 IB 1501229 F ...
Page 476: ...445 IB 1501229 F 9 Power Backup System ...
Page 494: ...463 IB 1501229 F 10 Appx 1 Cable and Connector Assembly ...
Page 504: ...473 IB 1501229 F 11 Appx 2 D A Output Specifications for Drive Unit ...
Page 514: ...483 IB 1501229 F 12 Appx 3 Protection Function ...
Page 523: ...MDS E EH Series Instruction Manual 12 Appx 3 Protection Function 492 IB 1501229 F ...
Page 524: ...493 IB 1501229 F 13 Appx 4 Compliance to EC Directives ...
Page 528: ...497 IB 1501229 F 14 Appx 5 EMC Installation Guidelines ...
Page 540: ...509 IB 1501229 F 15 Appx 6 Higher Harmonic Suppression Measure Guidelines ...
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