YASKAWA GA800 Series, Maintenance & Troubleshooting

Page: 227 / 566

Parameter
List
3
3.11 L: Protection Functions
YASKAWA TOEPYAIGA8001B GA800 Drive Maintenance & Troubleshooting 227
No.
(Hex.)
Name Description
Default
(Range)
L2-30
(045E)
Expert
KEB Zero Speed Operation
Sets the operation when the output frequency decreases below the zero level (DC braking injection
starting frequency) during KEB deceleration when
L2-01 = 3 to 5 [Power Loss Ride Through Select
= Kinetic Energy Backup: L2-02, Kinetic Energy Backup: CPU Power, or Kinetic Energy Backup:
DecelStop]
.
0 : Baseblock
1 : DC/SC Braking
0
(0, 1)
L2-31
(045D)
Expert
KEB Start Voltage Offset
Level
Sets the KEB start voltage offset.
Determined by A1-02
(200 V Class: 0 - 100 V,400
V Class: 0 - 200 V)
◆
L3: Stall Prevention
No.
(Hex.)
Name Description
Default
(Range)
L3-01
(048F)
Stall Prevention during
Accel
Sets the method of the Stall Prevention During Acceleration.
0 : Disable
1 : Enabled
2 : Intelligent (Ignore Accel Ramp)
3 : Current Limit Acceleration
1
(0 - 3)
L3-02
(0490)
Stall Prevent Level during
Accel
Sets the output current level to activate the Stall Prevention function during acceleration as a
percentage of the drive rated output current.
Note:
The upper limit of the setting range changes when C6-01 [Normal / Heavy Duty Selection]
changes.
• 150% when C6-01 = 0 [Heavy Duty Rating] .
• 110% when C6-01 = 1 [Normal Duty Rating] .
Determined by C6-01 and
L8-38
(0 - 150%)
L3-03
(0491)
Stall Prevent Limit during
Accel
Sets the lower limit for the stall prevention level used in the constant output range as a percentage of
the drive rated output current.
50%
(0 - 100%)
L3-04
(0492)
Stall Prevention during
Decel
Sets the method that the drive will use to prevent overvoltage faults when decelerating.
Note:
1. To connect a dynamic braking option (braking resistor or braking resistor unit) to the drive,
set this parameter to
0 or 3 . Parameter values 1, 2, 4, and 5 will enable Stall Prevention
function during deceleration, and the dynamic braking option will not function.
2. The setting range changes when the A1-02 [Control Method Selection] value changes:
• When A1-02 = 5 [OLV/PM] , the setting range is 0 to 2 .
• When A1-02 = 6, 7, 8 [AOLV/PM, CLV/PM, EZOLV] , the setting range is 0, 1 .
0 : Disable
1 : General Purpose
2 : Intelligent (Ignore Accel Ramp)
3 : General Purpose w/ DB resistor
4 : Overexcitation/High Flux 1
5 : Overexcitation/High Flux 2
1
(Determined by A1-02)
L3-05
(0493)
Stall Prevention during RUN
Sets the function to enable and disable Stall Prevention During Run.
Note:
1. An output frequency lower than 6 Hz will disable Stall Prevention during Run. The L3-05
and L3-06 [Stall Prevent Level during Run] settings do not have an effect.
2. The setting range changes when the A1-02 [Control Method] value changes:
•
A1-02 = 0, 1, 5 [V/f, CL-V/f, OLV/PM] : 0 to 2
•
A1-02 =8[EZOLV] : 0, 3
0 : Disabled
1 : Deceleration Time 1 (C1-02)
2 : Deceleration Time 2 (C1-04)
3 : Intelligent (Ignore Decel Ramp)
2
(0 - Determined by A1-02)
V/f CL-V/f OLV CLV AOLV OLV/PM OLV/PM AOLV/PM CLV/PM EZOLV
V/f CL-V/f OLV CLV AOLV OLV/PM OLV/PM AOLV/PM CLV/PM EZOLV
V/f CL-V/f OLV CLV AOLV OLV/PM OLV/PM AOLV/PM CLV/PM EZOLV
V/f CL-V/f OLV CLV AOLV OLV/PM OLV/PM AOLV/PM CLV/PM EZOLV
V/f CL-V/f OLV CLV AOLV OLV/PM OLV/PM AOLV/PM CLV/PM EZOLV
V/f CL-V/f OLV CLV AOLV OLV/PM OLV/PM AOLV/PM CLV/PM EZOLV
V/f CL-V/f OLV CLV AOLV OLV/PM OLV/PM AOLV/PM CLV/PM EZOLV