IMPULSE•G+/VG+ Series 4 Technical Manual
November 2022
Page 161
5.7.2 Power Loss Ride Thru
Table 5-88: Power Loss Ride Thru Parameter Settings
** Initial value is dependent on VFD size, which is determined by O02-04 (kVA Selection).
L01-03
Mtr OH Alarm Sel
Operation when the motor temperature
analog input (H03-02, H03-06, or H03-10 =
E) exceeds the OH3 alarm level. (1.17V)
0–3
3
0 Decel to Stop
1 Coast to Stop
2 Fast Stop (Alarm)
Decel by B05-08
3 Alarm Only
OH3 Flashes
L01-04
Mtr OH Fault Sel
Operation when the motor temperature
analog input (H03-02, H03-06, or H03-10 =
E) exceeds the OH4 fault level. (2.34V)
0–2
1
0 Decel to Stop
1 Coast to Stop
2 Fast Stop
Decel by B05-08
L01-05
Mtr Temp Filter
Motor temperature analog input filter time
constant (H03-02, H03-06, or H03-10 = E)
0.00–10.00 sec
0.20
L01-13
Mtr OL Mem Sel
Determines whether or not to hold the current
value of the electrothermal motor protection
(L01-01) when the power supply is
interrupted.
0, 1
1
0 Disabled
1 Enabled
Parameter
Display
Function
Range
Default
L02-01
PwrL Selection
Enables/disables the Power Loss Ride thru
function
0–2
0
0 Disabled
UV1 fault when power is lost for more than
15 milliseconds.
1 Enable w/ Timer
Recover within the time set in L02-02. Uv1
will be detected if power loss is longer than
L02-02.
2 Enable if CPU on
Recover as long as CPU has power. Uv1 is
not detected.
L02-02
PwrL Ridethru t
Power Loss Ride thru time
0.0–25.5 sec
**
L02-03
PwrL Baseblock t
Output turn on delay after power resumes
0.1–5.0 sec
**
L02-04
PwrL V/F Ramp t
Voltage recovery time after speed search is
complete
0.0–5.0 sec
**
L02-05
PUV Det Level
Under voltage fault detection level
230V: 150–210 VDC
460V: 300–420 VDC
575V: 431–604 VDC
Determined
by E01-01
Parameter
Display
Function
Range
Default
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