YASKAWA iQpump Micro CIMR-PW Series User Manual page 203

No.
L4-01
L4-02
Refer to H2-01 to H2-03: Terminal MA/MB/MC, P1/PC, and P2/PC Function Selection on page
5.
L4-03/04: Speed Agreement Detection Level and Detection Width (+/-)
n
Parameter L4-03 sets the detection level for the digital output functions "Speed Agree 2", "User Set Speed Agree 2",
"Frequency Detection 3", and "Frequency Detection 4".
Parameter L4-04 sets the hysteresis level for these functions.
No.
L4-03
L4-04
Refer to H2-01 to H2-03: Terminal MA/MB/MC, P1/PC, and P2/PC Function Selection on page
and 16.
L4-05: Frequency Reference Loss Detection Selection
n
The drive can detect a loss of an analog frequency reference from input A1 or A2. Reference loss is detected when the frequency
reference value reduces for 90% within 400 ms.
To have a fault output trigger when frequency reference loss occurs, set H2-01, H2-02, or H2-03 to "C".
Frequency Reference Loss on page 177
Parameter L4-05 selects the operation when a frequency reference loss is detected.
No.
L4-05 Frequency Reference Loss Detection Selection
Setting 0: Stop
The drive will stop the motor.
Setting 1: Continue Operation with Reduced Frequency Reference
The drive will continue operation at the frequency reference value set in parameter L4-06. When the external frequency
reference value is restored, the operation is continued with the frequency reference.
L4-06: Frequency Reference at Reference Loss
n
Sets the frequency reference level the drive runs with when L4-05 = 1 and a reference loss was detected. The value is set as
a percentage of the frequency reference before the loss was detected.
No.
L4-06
L4-07: Speed Agreement Detection Selection
n
Determines when frequency detection is active using parameters L4-01 through L4-04.
No.
L4-07
YASKAWA TOEP YAIQPM 03B YASKAWA AC Drive - iQpump Micro User Manual
Name
Speed Agreement Detection Level
Speed Agreement Detection Width
Name
Speed Agreement Detection Level (+/-)
Speed Agreement Detection Width (+/-)
Analog
frequency
reference
400ms
Loss of
Reference
OFF
output
Figure 5.75 Loss of Reference Function
for details on setting the output function.
Name
Name
Frequency Reference at Reference Loss
Name
Speed Agreement Detection Selection
Setting Range
0.0 to 400.0 Hz
0.0 to 20.0 Hz
Setting Range
0.0 to 400.0 Hz
0.0 to 20.0 Hz
100%
80%
10%
ON
time
Setting Range
Setting Range
0.0 to 100.0%
Setting Range
5.8 L: Protection Functions
Default
0.0 Hz
2.0 Hz
174, Settings 2, 3, 4, and
Default
0.0 Hz
2.0 Hz
174, Settings 13, 14, 15,
Refer to Setting C:
Default
0 or 1 0
Default
80.0%
Default
0, 1 0
5
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