YASKAWA A1000 Series Quick Start Manual page 87

H4-07, H4-08: Multi-Function Analog Output Terminal FM, AM Signal Level Selection
■
Sets the voltage output level of U parameter (monitor parameter) data to terminal FM and terminal AM using parameters
H4-07 and H4-08.
No.
H4-07
Multi-Function Analog Output Terminal FM Signal Level Selection
H4-08
Multi-Function Analog Output Terminal AM Signal Level Selection
Setting 0: 0 to 10 V
Setting 1: -10 V to 10 V
■ L3-01: Stall Prevention Selection during Acceleration
Stall Prevention during acceleration (L3-01) prevents tripping with overcurrent (oC), motor overload (oL1), or drive
overload (oL2) faults common when accelerating with heavy loads.
L3-01 determines the type of Stall Prevention the drive should used during acceleration.
No.
L3-01
<1> Setting 2 is not available for PM OLV.
Setting 0: Disabled
No Stall Prevention is provided. If the acceleration time is too short, the drive may not be able to get the motor up to
speed fast enough, thus tripping an overload fault.
Setting 1: Enabled
Enables Stall Prevention during acceleration. Operation varies, depending on the control mode.
• V/f Control, V/f Control with PG, and Open Loop Vector Control:
If the output current rises above the Stall Prevention level set in L3-02, then the drive stops accelerating. Acceleration
will not resume until the output current falls 15% below the setting in L3-02.
The Stall Prevention level is automatically reduced in the constant power range.
Limit during Acceleration on page
Figure 75
• Open Loop Vector Control for PM:
If the output current remains above the Stall Prevention level set in L3-02 for the time set in L3-27, then the drive will
begin to decelerate using the deceleration time set in L3-22. Acceleration will not resume until the output current falls
15% below the setting in L3-02.
YASKAWA ELECTRIC TOEP C710616 21C YASKAWA AC Drive - A1000 Quick Start Guide
Name
Name
Stall Prevention Selection during Acceleration
88.
Output current
Stall Prevention Level
During Acceleration
L3-02
L3-02
-15%
Output frequency
Controls the output frequency
to prevent the motor from stalling
Figure 75 Stall Prevention During Acceleration for Induction Motors
4 Start-Up Programming & Operation
Setting Range
0, 1
0, 1
Setting Range
0 to 2
<1>
Refer to L3-03: Stall Prevention
Time
Time
Default
0
0
Default
1
4
87