YASKAWA U1000 - L7: Torque Limit; L8: Drive Protection

u
L7: Torque Limit
No.
(Addr.
Hex)
Name LCD Display Description Values Page
L7-01
(04A7)
Forward Torque Limit Torq Limit Fwd
V/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLV
AOLV/PM
OLV
CLV/PM
CLVV/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLV
AOLV/PM
OLV
CLV/PM
CLV
Sets the torque limit value as a percentage of the motor rated
torque. Four individual quadrants can be set.
L7-01
L7-03
L7-02
L7-04
Output Torque
Positive Torque
REV
Negative Torque
FWD
Motor
r/min
Regeneration
Regeneration
Default: 200%
Min.: 0
Max.: 300
327
L7-02
(04A8)
Reverse Torque Limit Torq Limit Rev
Default: 200%
Min.: 0
Max.: 300
327
L7-03
(04A9)
Forward Regenerative
Torque Limit
Torq Lmt Fwd Rgn
Default: 200%
Min.: 0
Max.: 300
327
L7-04
(04AA)
Reverse Regenerative
Torque Limit
Torq Lmt Rev Rgn
Default: 200%
Min.: 0
Max.: 300
327
L7-06
(04AC)
Torque Limit Integral
Time Constant
Trq Lim I Time
V/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLVOLV
Sets the integral time constant for the torque limit.
Default: 200 ms
Min: 5
Max: 10000
327
L7-07
(04C9)
Torque Limit Control
Method Selection during
Accel/Decel
Trq Lim d AccDec
P-ctrl @ Acc/Dec
I-ctrl @ Acc/Dec
V/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLVOLV
0: Proportional control (changes to integral control at constant
speed). Use this setting when acceleration to the desired speed
should take precedence over the torque limit.
1: Integral control. Set L7-07 to 1 if the torque limit should take
precedence.
Default: 0
Range: 0, 1
327
L7-16
(0444D)
Torque Limit Process at
Start
TLim DlyTime Sel
0: Disabled
1: Enabled
V/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLV
AOLV/PM
OLV
CLV/PM
CLVV/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLV
AOLV/PM
OLV
CLV/PM
CLV
0: Disabled
1: Enabled
Default: 1
Range: 0, 1
327
u
L8: Drive Protection
No.
(Addr.
Hex)
Name LCD Display Description Values Page
L8-02
(04AE)
Overheat Alarm Level OH Pre-Alarm Lvl
All Modes
An overheat alarm occurs when heatsink temperature exceeds the
L8-02 level.
Default:
<1>
Min.: 50 °C
Max.: 150 °C
328
L8-03
(04AF)
Overheat Pre-Alarm
Operation Selection
OH Pre-Alarm Sel
0: Ramp to Stop
1: Coast to Stop
2: Fast-Stop
3: Alarm Only
4: Run@L8-19 Rate
All Modes
0: Ramp to stop. A fault is triggered.
1: Coast to stop. A fault is triggered.
2: Fast Stop. Decelerate to stop using the deceleration time in
C1-09. A fault is triggered.
3: Continue operation. An alarm is triggered.
4: Continue operation at reduced speed as set in L8-19.
Default: 3
Range: 0 to 4
328
L8-07
(04B3)
Output Phase Loss
Protection Selection
Outp Ph Loss Det
0: Disabled
1: 1PH Loss Det
2: 2/3PH Loss Det
All Modes
0: Disabled
1: Enabled (triggered by a single phase loss)
2: Enabled (triggered when two phases are lost)
Note: Output phase loss detection can mistakenly be
triggered if the motor rated current is very small
compared to the drive rated output current. Disable
this parameter in such cases.
Default: 1
Range: 0 to 2
329
L8-09
(04B5)
Output Ground Fault
Detection Selection
Grnd Flt Det Sel
0: Disabled
1: Enabled
All Modes
0: Disabled
1: Enabled
Default: 1
Range: 0, 1
329
B.10 L: Protection Function
YASKAWA ELECTRIC SIEP C710636 04D U1000 Industrial MATRIX Drive Technical Manual
555
B
Parameter List