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•Torque Limits: L7<br />
Parameter<br />
Number<br />
L7-01<br />
L7-02<br />
L7-03<br />
L7-04<br />
Name<br />
Display<br />
Forward drive<br />
torque limit<br />
Torq Limit Fwd<br />
Reverse drive<br />
torque limit<br />
Torq Limit Rev<br />
Forward regenerative<br />
torque limit<br />
Torq Lmt Fwd<br />
Rgn<br />
Reverse regenerative<br />
torque limit<br />
Torq Lmt Rev<br />
Rgn<br />
Description<br />
Sets the torque limit value as a percentage<br />
of the motor rated torque.<br />
Four individual regions can be set.<br />
Revers<br />
e<br />
Operation selection<br />
after overheat prealarm<br />
Regenerative<br />
state<br />
Output torque<br />
Positive torque<br />
Regenerative<br />
state<br />
Negative<br />
No. of<br />
motor<br />
rotations<br />
Forward<br />
Setting<br />
Range<br />
0 to<br />
300<br />
0 to<br />
300<br />
0 to<br />
300<br />
0 to<br />
300<br />
Factory<br />
Setting<br />
Control Methods<br />
V/f<br />
Open<br />
Loop<br />
Vector<br />
Closed<br />
Loop<br />
Vector<br />
Change<br />
during<br />
Operation<br />
MEMO-<br />
BUS<br />
Register<br />
Page<br />
300%* No No A A 4A7H 5-37<br />
300%* No No A A 4A8H 5-37<br />
300%* No No A A 4A9H 5-37<br />
300%* No No A A 4AAH 5-37<br />
L7-06<br />
Torque limit time<br />
constant<br />
Torque Limit<br />
Time<br />
Sets the torque limit integration time<br />
constant<br />
5 to<br />
10000<br />
200 ms No No A No 4ACH 5-37<br />
L7-07<br />
Torque Limit<br />
Operation during<br />
accel/decel<br />
Torque Limit Sel<br />
Sets the torque limit operation during<br />
acceleration and deceleration.<br />
0: P-control (I control is added at<br />
constant speed operation)<br />
1: I-control<br />
Normally changing this setting is not<br />
necessary.<br />
If the torque limitation accuracy during<br />
accel/decel. has preference, I control<br />
should be selected. This may<br />
result in an increased accel./decel.<br />
time and speed deviations from the<br />
reference value.<br />
0 or 1 0 No No A No 4C9H 5-38<br />
•Hardware Protection: L8<br />
Parameter<br />
Number<br />
L8-02<br />
L8-03<br />
Name<br />
Display<br />
Overheat pre-alarm<br />
level<br />
OH Pre-Alarm Lvl<br />
OH Pre-Alarm Sel<br />
Description<br />
Sets the detection temperature<br />
for the Inverter overheat detection<br />
pre-alarm in °C.<br />
The pre-alarm detects when the<br />
cooling fin temperature reaches<br />
the set value.<br />
Sets the operation when an<br />
Inverter overheat pre-alarm<br />
occurs.<br />
0: Decelerate to stop using the<br />
deceleration time C1-02.<br />
1: Coast to stop<br />
2: Fast stop in fast-stop time<br />
C1-09.<br />
3: Continue operation (Monitor<br />
display only.)<br />
A fault will be given in setting 0<br />
to 2 and a minor fault will be<br />
given in setting 3.<br />
Setting<br />
Range<br />
Factory<br />
Setting<br />
Control Methods<br />
V/f<br />
Open<br />
Loop<br />
Vector<br />
Closed<br />
Loop<br />
Vector<br />
Change<br />
during<br />
Operation<br />
MEMO-<br />
BUS<br />
Register<br />
Page<br />
50 to 130 90 °C* No A A A 4AEH 5-40<br />
0 to 3 3 No A A A 4AFH 5-40<br />
4-34
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