IMPULSE•G+/VG+ Series 4 Technical Manual
November 2022
Page 164
Table 5-90: Speed Agree Parameter Settings
Table 5-91: Reference Detection Parameter Settings
Parameter
Display
Function
Range
Default
L04-01
Spd Agree Level
Detection level for the desired speed agree 1
and frequency detection functions. The
detection level is effective during both FWD
and REV operation.
0.0–150.0 Hz
0.0
L04-02
Spd Agree Width
Detection width for speed agree 1 and
frequency detection functions.
0.0–20.0 Hz
2.0
L04-03
Spd Agree Lvl+-
Detection level for the desired speed agree 2
function. The detection level is effective
during either FWD or REV operation,
depending on the set detection level (positive
value for FWD operation, negative value for
REV operation).
-150.0–150.0 Hz
0.0
L04-04
Spd Agree Wdth+-
Detection width for the speed agree 2
function.
0.0–20.0 Hz
2.0
Parameter
Display
Function
Range
Default
L04-05
Ref Loss Sel
The VFD can detect a loss of an analog
frequency reference from input A1, A2, or A3.
Frequency reference loss is detected when
the frequency reference drops below 10% of
the reference or below 5% of the maximum
output frequency within 400 ms.
0, 1
0
0 Stop
VFD stops when frequency reference is lost.
1 Run@L4-06PrevRef
VFD runs at a reduced speed when the
frequency reference is lost.
L04-06
Fref at Floss
Percentage of the frequency reference that
the VFD should run with when the frequency
reference is lost.
0.0–100.0%
80
L04-07
Freq Detect Sel
Determines when frequency detection is
active using parameters L04-01 to L04-04.
0, 1
0
0 No Detection @BB
No detection during baseblock.
1 Always Detected
Detection always enabled.
