Sync loss gain, Sync loss comp, Sync loss time – Rockwell Automation 1336Z SPIDER - FRN 2.xxx-5.xxx User Manual

Page 131: Pwm comp time, Break freq, Pwm break freq, Stability gain

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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]

Sets the extra voltage to add when trying to get the motor
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 [Sync Loss Sel] = “Fault,” the sync loss detection and
recovery function is enabled. If the sync loss continues
for longer than the time set by [Sync Loss Time], the drive
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

[PWM Comp Time]

–Firmware 4.001 & later

This parameter does not function with the SPIDER 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

[PWM Break Freq]

– Firmware 5.001 & later

This parameter does not function with the SPIDER 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 parameter adjusts the gain of the torque component
of current to adjust for possible current instability in certain
motors caused by variations in design. Increasing this val-
ue to the correct setting for a particular motor will stabilize
torque pulsations in the motor.

Important: Setting this value too high may cause addition-
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

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