Instruction Manual

Programming 7–59
Motor Control
[Sync Loss Gain]
Sets a gain that controls the sensitivity of the sync loss
detection function.
Parameter Number 311
Parameter Type Read and Write
Factory Default Numeric / Gain x 100
Factory Default 40
Minimum Value 0
Maximum Value 100
[Sync Loss Comp]
Setstheextravoltagetoaddwhentryingtogetthemotor
to re-sync after a loss of sync is detected.
Parameter Number 313
Parameter Type Read and Write
Factory Default 1 Volt / 4096 = Drive Rtd. Volts
Factory Default 0 Volts
Minimum Value 0 Volts
Maximum Value 25% of Drive Rtd. Volts
[Sync Loss Time]
For[SyncLoss Sel]= “Fault,”the synclossdetection and
recovery function is enabled. If the sync loss continues
forlongerthanthetimesetby[SyncLossTime],thedrive
faults with an F67 “Motor Sync Loss” fault indication.
Parameter Number 312
Parameter Type Read and Write
Factory Default 1 Second / Seconds x 100
Factory Default 5 Sec
Minimum Value 1 Sec
Maximum Value 30 Sec
[PWMCompTime]–Firmware4.001&later
This parameter doesnot functionwith theSPIDER drive.
Parameter Number 333
Parameter Type Read and Write
Display Units / Drive Units None
Factory Default 80
Minimum Value 20
Maximum Value 90
[Break Freq] – Firmware 4.001 & later
[PWMBreakFreq]–Firmware5.001&later
This parameter doesnot functionwith theSPIDER drive.
Parameter Number 334
Parameter Type Read and Write
Display Units / Drive Units 0.01 Hertz / 32767 = Maximum Freq Forward
Factory Default 0 Hz
Minimum Value 0 Hz
Maximum Value 30 Hz
[Stability Gain]
This parameteradjusts thegain of thetorque component
ofcurrenttoadjustforpossiblecurrentinstabilityincertain
motorscaused byvariationsin design.Increasingthis val-
uetothe correctsetting foraparticularmotor willstabilize
torque pulsations in the motor.
Important:Settingthisvaluetoohighmaycauseaddition-
al instability. It should be set for the lowest value that
eliminates the instability.
Parameter Number 324
Parameter Type Read and Write
Display Units / Drive Units None
Factory Default 0
Minimum Value 0
Maximum Value 16