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Chapter 6 - Parameter Description [EXT]
[Voltage]
The AM terminal outputs inverter output voltage. The
output value is determined by,
AM Output Voltage = (Output voltage / Max. output
voltage) × 10V X AM Output Gain (EXT41~42)/ 100
[DC link vtg]
The AM terminal outputs the DC link voltage of inverter.
The output value is determined by,
AM Output Voltage = (DC link voltage / Max. DC link
voltage) × 10V X AM Output Gain (EXT41~42)/ 100
[Torque]
The AM terminal outputs inverter output torque. The
output value is determined by,
AM Output Voltage = (Output Torque / Rated Torque
current) × 10V X AM Output Gain (EXT41~42)/ 150
EXT-50~53 [Speed limit for Torque mode
operation]
LCD
Code
Description
display
EXT-
Speed
Speed Limit
50
Limit
Level
EXT-
Speed
Speed Limit
51
Bias
Bias
EXT-
Speed
Speed Limit
52
Gain
Gain
EXT-
Speed Limit
Speed Dir
53
Direction
By setting speed limit, this parameter prevents the motor
from rotating excessively high speed due to no-load or
light load connection during Vector_TRQ in FU2-39
[Control mode].
Set as the percent of EXT -50 [Speed limit level] and
EXT -51 [Speed Limit Bias] to FU1-20 [Max Freq].
If EXT -53 [Speed Limit Direction]= FWD, EXT -51 [Speed
Limit Bias]
FWD Torque control is set, the FWD Torque control is
shown as below. In other words, when the motor rotates
in Forward direction, FWD torque is kept controlled in
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the range of EXT -50 [Speed Limit Level] + EXT -51
[Speed bias]. When the motor rotates in Reverse
direction, REV torque is controlled in EXT -51[Speed
Limit Bias] and torque is controlled constant in the above
speed range. EXT -52 [Speed limit gain] is the curve
value to reduce the FWD torque or to increase to the
constant torque in Reverse direction.
DRV_00
Torque
Command
Related parameters : FU2-39 [Control mode selection]
Factory
Setting
setting
range
0 –
100[%]
100[%]
0 –
100[%]
200[%]
1
1 – 10
0
1
(Reverse)
(Forward)
1
(Forward)
142
Output torque
EXT_51
Speed Bias
EXT_50
Speed Limit
FU1-20 [max Freq]
EXT-27[Trq + Limit] EXT-28[Trq - Limit]
Speed
EXT_51
Speed Bias
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Troubleshooting
