CMC 30 HP30, Installation And Operation Instruction Manual

Page: 151 / 218

Chapter 6 - Parameter Description [EXT]
6-59
AM Output Voltage = (Output voltage / Max. output
voltage) × 10V
[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
[Torque]
The AM terminal outputs the Torque of the motor. The
output value is determined by,
AM Output Voltage = (Torque current/ Rated Torque
current ) * 10V* AM output gain (EXT-41~42) / 150
EXT-50~53 [Speed limit for Torque mode
operation]
Related parameters : FU2-39 [Control mode selection]
FU1-20 [max Freq]
EXT-27[Trq + Limit] EXT-28[Trq - Limit]
Code
LCD
display
Description
Factory
setting
Setting
range
EXT-
50
Speed
Limit
Speed Limit
Level
100[%]
0 –
100[%]
EXT-
51
Speed
Bias
Speed Limit
Bias
10[%]
0 –
200[%]
EXT-
52
Speed
Gain
Speed Limit
Gain
1 1 – 10
EXT-
53
Speed Dir
Speed Limit
Direction
1
(Forward)
0
(Reverse)
1
(Forward)
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 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.
Speed
Output torque
EXT_5 1
Speed Bias
DRV_00
Torque
Command
EXT_5 1
Speed Bias
EXT_50
Speed Limit