YASKAWA HV600 Manual page 198

2.3 b: Application
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b3-29: Speed Search Back-EMF Threshold
No.
Name
(Hex.)
b3-29 Speed Search Back-EMF
Threshold
(077C)
Expert
To make adjustments, gradually decrease the setting value. If you decrease the setting value too much, speed search
will not operate correctly.
■
b3-31: Spd Search Current Reference Lvl
No.
Name
(Hex.)
b3-31 Spd Search Current
Reference Lvl
(0BC0)
Expert
Set this parameter as a ratio of E2-03 [Motor No-Load Current]. The setting is a ratio with respect to 30% of the
motor rated current when E2-03 ≤ E2-01 [Motor Rated Current] × 0.3.
Note:
The setting is a ratio with respect to E9-06 [Motor Rated Current (FLA)] × 0.5 when A1-02 = 8 [Control Method Selection = EZOLV].
■
b3-32: Spd Search Current Complete Lvl
No.
Name
(Hex.)
b3-32 Spd Search Current
Complete Lvl
(0BC1)
Expert
The Current Detection Speed Search gradually decreases the output frequency to search for the motor speed when the
output current is equal to or less than Speed Search Current Complete Level.
Set this parameter as a ratio of E2-03 [Motor No-Load Current]. The setting is a ratio with respect to 30% of the
motor rated current when E2-03 ≤ E2-01 [Motor Rated Current] × 0.3.
Note:
The setting is a ratio with respect to E9-06 [Motor Rated Current (FLA)] × 0.5 when A1-02 = 8 [Control Method Selection = EZOLV].
■
b3-33: Speed Search during Uv Selection
No.
Name
(Hex.)
b3-33 Speed Search during Uv
Selection
(0B3F)
Expert
Set these three parameters as shown to enable b3-33:
• L2-01 = 1, 2 [Power Loss Ride Through Select = Enabled for L2-02 Time, Enabled while CPU Power Active]
• b3-01 = 1 [Speed Search at Start Selection = Enabled]
• b1-03 = 1 [Stopping Method Selection = Coast to Stop]
0 : Disabled
1 : Enabled
■
b3-54: Search Time
No.
Name
(Hex.)
b3-54 Search Time
(3123)
198
V/f OLV/PM OLV/PM EZOLV
Sets the induced voltage for motors that use Speed Search. The drive will start Speed Search when
the motor induced voltage level is the same as the setting value. Usually it is not necessary to change
this setting.
V/f OLV/PM OLV/PM EZOLV
Sets the current level that decreases the output current during Current Detection Speed Search.
V/f OLV/PM OLV/PM EZOLV
Sets the current level that completes Speed Search.
V/f OLV/PM EZOLV OLV/PM
Sets the function that starts Speed Search at start-up if the drive detects a Uv [Undervoltage] when it
receives a Run command.
V/f OLV/PM EZOLV OLV/PM
Sets the length of time that the drive will run Speed Search.
Description
Description
Description
Description
Description
YASKAWA TOEPYAIHV6002A HV600 Drive Programming
Default
(Range)
10%
(0 - 10%)
Default
(Range)
1.50
(1.50 - 3.50)
Default
(Range)
1.20
(0.00 - 1.49)
Default
(Range)
1
(0, 1)
Default
(Range)
400 ms
(10 - 2000 ms)