Base voltage, Base frequency, Maximum voltage – Rockwell Automation 1336Z SPIDER - FRN 2.xxx-5.xxx User Manual
Page 130: Run/accel volts, Sync loss sel, Motor sync loss detection for synchronous motors
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Programming
[Base Voltage]
This value should be set to the motor nameplate rated
voltage.
Parameter Number
18
Parameter Type
Read and Write
Display Units / Drive Units
1 Volt / 4096 = Drive Rtd Volts
Factory Default
Drive Rated Volts
Minimum Value
25% of Drive Rated Voltage
Maximum Value
120% of Drive Rated Voltage
[Base Frequency]
This value should be set to the motor nameplate rated
frequency.
Parameter Number
17
Parameter Type
Read and Write
Display Units / Drive Units
1 Hertz / Hertz x 10
Factory Default
60 Hz
Minimum Value
25 Hz
Maximum Value
400 Hz
[Maximum Voltage]
This parameter sets the highest voltage the drive will
output for “Fixed Boost” & “Full Custom.”
Parameter Number
20
Parameter Type
Read and Write
Display Units / Drive Units
1 Volt / 4096 = Drive Rtd Volts
Factory Default
Drive Rated Volts
Minimum Value
25% of Drive Rated Voltage
Maximum Value
120% of Drive Rated Voltage
[Run/Accel Volts]
In “Fixed Boost” or “Full Custom” modes, the output voltage
is reduced by the programmed amount while at frequency.
Parameter Number
317
Parameter Type
Read and Write
Display Units / Drive Units
1% / 4096 = 100%
Factory Default
100%
Minimum Value
50%
Maximum Value
100%
[Sync Loss Sel]
This parameter allows selection of various sync loss
modes.
Important: The motor must be connected to the drive
when the sync loss function is enabled.
Parameter Number
310
Parameter Type
Read and Write
Factory Default
“Disabled”
Units
Display Drive
“Disabled” 0
sync loss detection and recovery
function is disabled
“Alarm” 1
sync loss detection and recovery
function is enabled
“Fault” 2
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 a F67 “Motor Sync Loss”
fault indication.
Motor Sync Loss Detection for
Synchronous Motors
This function is enabled if [Sync Loss Sel] is set to “Alarm” or “Fault”.
The motor sync loss detection attempts to sense when a synchronous motor has pulled out of sync. When
this happens the motor will typically draw a high current and the power flow between the motor and the
drive oscillates. Based on this, the detection algorithm looks for a large oscillation of the current (relative
to voltage) angle while the current is high. When loss of sync is detected, the “Sync Loss” bit in [Drive
Alarm 1] is set. Additionally, the drive will add an additional voltage set by [Sync Loss Comp] to the output
voltage. This will increase the pull-in torque to allow the motor to re-synchronize.
If [Sync Loss Sel] is set to “Fault,” the time the “Sync Loss” bit is set is timed. If it exceeds the time set by
[Sync Loss Time], the drive faults with a F67 “Motor Sync Loss” fault indication.