L8: Drive Protection - YASKAWA L1000V Technical Manual

5.8 L: Protection Functions
Figure 5.30
REV motor rotation
n
L7-01 to L7-04: Torque Limits
These parameters set the torque limits in each operation mode.
No.
L7-01
L7-02
L7-03
L7-04
n
L7-06: Torque Limit Integral Time
Sets the integral time constant for the torque limit. Increasing this value will reduce the degree to which the frequency
reference changes when the torque limit is reached.
No.
L7-06
n
L7-07: Torque Limit Control Method during Accel/Decel
Sets the method of torque limit controls during acceleration and deceleration. Adjustment of this parameter is usually not
required. When torque limits are applied, accel/decel time may increase and the motor may not run at the indicated speed
reference.
No.
L7-07
Setting 0: Proportional Control (uses Integral control at constant speed)
Setting 1: Intergal Control
u L8: Drive Protection
n
L8-02: Overheat Alarm Level
Sets the overheat alarm (oH) detection level.
The drive will output an alarm when the heatsink temperature exceeds the alarm level set in parameter L8-02.
When an output terminal is set for the oH pre-alarm (H2-
rises above L8-02.
No.
L8-02
144
positive torque reference
REV run regenerative
Parameter L7-04
quadrant 2
quadrant 3
Parameter L7-02
REV run motoring
negative torque reference
Figure 5.30 Torque Limit Parameters
Name
Forward Torque Limit
Reverse Torque Limit
Forward Regenerative Torque Limit
Reverse Regenerative Torque Limit
Name
Torque Limit Integral Time
Name
Torque Limit Control Method
Name
Overheat Alarm Level
YASKAWA EUROPE SIEP
FWD run motoring
Parameter L7-01
quadrant 1
quadrant 4
Parameter L7-03
FWD run regenerative
= 20), the switch will close when the heatsink temperature
FWD motor rotation
common_TMo
Setting Range
0 to 300%
0 to 300%
0 to 300%
0 to 300%
Setting Range
5 to 10000 ms
Setting Range
0 to 1
Setting Range
50 to 130 °C Determined by o2-04
YASKAWA AC Drive L1000V Technical Manual
Default
200%
200%
200%
200%
Default
200 ms
Default
0
Default