YASKAWA GA800 Technical Reference page 706

12.2 A: Initialization Parameters
No.
L2-01
L3-04
The drive saves the parameters in
Table 12.13 Parameters Saved as User Parameters with the Air Compressor Preset
User Parameter No.
A2-01
A2-02
A2-03
A2-04
A2-05
A2-06
A2-07
A2-08
A2-09
■
Notes for Elevator Applications
When you use the drive for elevator applications, read the safety descriptions and precautions, and safely and
correctly use the device.
Conditions to Open and Close the Brake
Set L4-07 = 0 [Speed Agree Detection Selection = No Detection during Baseblock] to open and close the holding
brake.
When L4-07 = 1 [Detection Always Enabled], the output frequency increases when you input the Run command
although the external baseblock command is input. Because of this, speed detection operates and will open the brake
signal.
• Set Related Parameters
Table 12.14 shows examples of parameter settings to use the MFDO terminal (M1-M2) as the holding brake open
and close signal.
Brake Open and Close Signal
Signal Name Parameter Settings
L4-07 = 0
Frequency (FOUT)
Detection 2
H2-01 = 5
During Frequency Output H2-01 = 37
*1 When A1-02 = 7 [PM Closed Loop Vector], make sure that the motor can rotate before you do Auto-Tuning or switch the encoder. Refer
to Closed Loop Vector Control for induction motors for information about the signal to use and the adjustment method.
*2 When A1-02 = 2 [Open Loop Vector], it is the usual setting range. When A1-02 = 0 [V/f Control], set L4-01 to the rated slip frequency of
the motor + approximately 0.5 Hz. If you set the value too low, motor torque will not be sufficient and it will cause motor rollback. Set
the parameters to meet these conditions at the same time. If the setting is too high, overshoot is possible at start.
• L4-01 > E1-09 [Minimum Output Frequency]
• L4-01 > L4-02 [Speed Agree Detection Width]
*3 Use L4-02 to adjust the detection width of Frequency Detection 2. If rollback occurs when the motor is stopped, set the frequency to
approximately 0.1 Hz.
706
Power Loss Ride Through Select
Stall Prevention during Decel
Table 12.13 as user parameters.
Parameter No. Saved
Table 12.14 Holding Brake Open and Close Signal Setting Example
Brake Open and Close Level Adjust
Signal Name
Speed Agree Detection
Level
Speed Agree Detection
Width
DC Injection/Zero Speed
Threshold
Name
b1-01
b1-02
b1-04
C1-01
C1-02
E1-03
E1-07
E1-08
E2-01
Applicable Control Methods (A1-02 Setting Value)
V/f
Parameter Settings
(0)
L4-01 = 1.0 Hz to 3.0 Hz
*2
x
L4-02 = 0.0 Hz to 0.5 Hz
*3
b2-01 = 0.1 Hz to 0.5 Hz -
YASKAWA SIEPC71061737D GA800 Drive Technical Reference
Optimal Value
1: Enabled
1: Enabled
Name
Frequency Reference Selection 1
Run Command Selection 1
Reverse Operation Selection
Acceleration Time 1
Deceleration Time 1
V/f Pattern Selection
Mid Point A Frequency
Mid Point A Voltage
Motor Rated Current (FLA)
OLV CLV AOLV
(2) (3) (4)
x - x
- x -
CLV/PM
*1
(7)
-
x