Page 4–156
DURApulse GS4 AC Drive User Manual – 1st Ed, Rev A - 10/20/2017
Chapter 4: AC Drive Parameters
Type Hex Addr Dec Addr
P6.49 Input Phase Loss Treatment (OrP)
R/W 0631 41586
Range/Units (Format: 16-bit binary) Default
0: Warn and ramp to stop
1: Warn and coast to stop
0
Over ripple protection.
To prevent damage to the capacitors from overheating due to an input phase loss, the drive will
monitor the input phases. This is done by monitoring the DC bus ripple amplitude and frequency.
The detection time is related to the output current shown below.
Current (%)
50 75 120 150 200
Time (seconds)
432 225 60 32 15
When the input voltage is greater than the setting in P6.70 for the time determined in the table
above, this situation is seen as an input phase loss. An error message OrP will be shown on the
keypad.
Related parameters: P6.69, P6.70
Type Hex Addr Dec Addr
P6.50 GFF Detect Current Level (% of INV I-Rated)
R/W 0632 41587
Range/Units (Format: 16-bit unsigned) Default
0�0~100�0% (% of drive rated current)
60�0
The Ground Fault Filter (GFF) level is a user settable level of output current difference between
phases that can be tolerated within the time frame specified in P6.51.
Type Hex Addr Dec Addr
P6.51 GFF Low Pass Filter Gain
R/W 0633 41588
Range/Units (Format: 16-bit unsigned) Default
0�00~655�35 seconds
0�10
When the drive detects the unbalanced three-phase output current that is higher than the setting
of P6.50 for the time specified in P6.51, GFF protection will be activated. The drive will stop at this
point.
Type Hex Addr Dec Addr
P6.52 Low Current Level
R/W 0634 41589
Range/Units (Format: 16-bit unsigned) Default
0�0~100�0%
0�0
Percentage of drive’s rated current that will trigger the action selected in P6.54 if the current is
below P6.52 for the time specified in P6.53. An under-current fault (uC) will occur if enabled.
Type Hex Addr Dec Addr
P6.53 Low Current Detection Time
R/W 0635 41590
Range/Units (Format: 16-bit unsigned) Default
0�00~360�00 sec
0�00
The current must be greater than the setting in P6.52 before the time limit specified in P6.53
elapses or else the action selected in P6.54 will be initiated. An under-current (uC) will occur if
enabled.
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