YASKAWA CIPR-GA50C series Technical Manual page 496

12.3 b: Application
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)
If you set this parameter too low, Speed Search will not operate correctly.
If the drive detects oC [Overcurrent] immediately after Speed Search Starts:
• Increase the value of L2-03 [Minimum Baseblock Time] and decrease the motor speed you use to start Speed
Search.
• Increases the setting value of b3-08 [Speed Estimation ACR P Gain].
• Increase the value of b3-54.
If the drive detects oC or ov [DC Bus Overvoltage] during Speed Search, increase the value of b3-08.
■
b3-55: Current Increment Time
No.
Name
(Hex.)
b3-55 Current Increment Time
(3124)
Expert
Gradually increase the setting value when a large quantity of current flows after speed search starts. If you set this
value too high, speed search will not operate correctly.
496
V/f OLV OLV/PM OLV/PM AOLV/PM EZOLV
Sets the current level that completes Speed Search.
V/f OLV OLV/PM OLV/PM AOLV/PM EZOLV
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 OLV/PM AOLV/PM EZOLV OLV/PM
Sets the length of time that the drive will run Speed Search.
V/f OLV OLV/PM AOLV/PM EZOLV OLV/PM
Sets the length of time that the drive will increase the current from zero current to the setting
value of b3-06 [Speed Estimation Current Level 1].
Description
Description
Description
Description
YASKAWA SIEPC71061753A GA500 Technical Manual
Default
(Range)
1.20
(0.00 - 1.49)
Default
(Range)
1
(0, 1)
Default
(Range)
400 ms
(10 - 2000 ms)
Default
(Range)
10 ms
(10 - 2000 ms)