L4: Speed Agree/Frequency Reference Loss Detection - Omron V1000 User Manual

n L3-25: Load Inertia Ratio
Determines the ratio between the rotor inertia and the load. Set this parameter when using KEB Ride-Thru 2, Intelligent
Stall Prevention during deceleration (L3-04 = 2), or the overvoltage suppression function (L3-11 = 1).
No.
L3-25
When set incorrectly, a fairly large current ripple can result during KEB Ride-Thru 2 and overvoltage suppression (L3-11
= 1) or other faults such as ov, Uv1, and oC may occur.
Parameter L3-25 can be calculated by:
u

L4: Speed Agree/Frequency Reference Loss Detection

These parameters set up the speed agree and speed detection functions which can be assigned to the multi-function output
terminals.
n L4-01/02: Speed Agreement Detection Level and Detection Width
Parameter L4-01 sets the detection level for the digital output functions "Speed Agree 1," "User Set Speed Agree 1,"
"Frequency Detection 1," and "Frequency Detection 2."
Parameter L4-02 sets the hysteresis level for these functions.
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
and 5.
n L4-03/04: Speed Agreement Detection Level and Detection Width (+/-)
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
15, and 16.
n L4-05: Frequency Reference Loss Detection Selection
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".
C: Frequency Reference Loss on page 173
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.
SIEP C710606 20 OYMC AC Drive - V1000 User Manual
Name
Load Inertia Ratio
L3-25 =
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 5.83 Loss of Reference Function
for details on setting the output function.
Name
Setting Range
0.0 to 1000.0
Machine Inertia
Motor Inertia
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
5.8 L: Protection Functions
Default
1.0
Default
0.0 Hz
2.0 Hz
169, Settings 2, 3, 4,
Default
0.0 Hz
2.0 Hz
169, Settings 13, 14,
Refer to Setting
Default
0 or 1 0
5
197