1.8 L: Protection Functions
YASKAWA ELECTRIC SIEP C710606 10A YASKAWA AC Drive - V1000 PRELIM. Programming Manual
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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:
◆
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.
■
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.
For more information, see
H2-01 to H2-03: Terminal MA/MB/MC, P1/PC and P2/PC
Function Selection on page 157
, Settings 2, 3, 4, and 5.
■
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.
Name
Setting Range
Default
L3-25
Load Inertia Ratio
0.0 to 1000.0
1.0
No.
Name
Setting Range
Default
L4-01
Speed Agreement Detection Level
0.0 to 400.0 Hz
0.0 Hz
L4-02
Speed Agreement Detection Width
0.0 to 20.0 Hz
2.0 Hz
No.
Name
Setting Range
Default
L4-03
Speed Agreement Detection Level (+/-)
0.0 to 400.0 Hz
0.0 Hz
L4-04
Speed Agreement Detection Width (+/-)
0.0 to 20.0 Hz
2.0 Hz
L3-25 = Machine Inertia
Motor Inertia
Содержание OYMC V1000
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