EM12 User’s Manual
5. Description of Function Codes
95
d1-00
Speed/Torque control selection
Default
0
Setting
Range
0
Speed control
1
Torque control
It is used to select the frequency inverter's control mode: speed control or torque control.
The EM12 provides DI terminals with two torque related functions, function 21 (Torque control prohibited) and
function 20 (Speed control/Torque control switchover). The two DI terminals need to be used together with d1-00
to implement speed control/torque control switchover.
If the DI terminal set with function 20 (Speed control/Torque control switchover) is OFF, the control mode is
determined by d1-00. If the DI terminal set with function 20 is ON, the control mode is reverse to the value of
d1-00.
However, if the DI terminal with function 21 (Torque control prohibited) is ON, the frequency inverter is fixed to
run in the speed control mode.
d1-01
Speed loop proportional gain 1(Kp1)
Default
30
Setting Range
1~100
d1-02
Speed loop integral time 1(Ti1)
Default
0.50s
Setting Range
0.01s~10.00s
d1-03
Switchover frequency
Default
5.00 Hz
Setting Range
0.00 HZ~ d1-06
d1-04
Speed loop proportional gain 2(KP2)
Default
20
Setting Range
1~100
d1-05
Speed loop integral time 2(Ti2)
Default
1.00s
Setting Range
0.01s~10.00s
d1-06
Switchover frequency 2
Default
10.00 Hz
Setting Range
d1-03~ maximum output frequency
Speed loop PI parameters vary with running frequencies of the frequency inverter.
If the running frequency is less than or equal to "Switchover frequency 1" (d1-03), the speed loop PI
parameters are d1-01 and d1-02.
If the running frequency is equal to or greater than "Switchover frequency 2" (d1-06), the speed loop PI
parameters are d1-04 and d1-05.
If the running frequency is between d1-03 and d1-06, the speed loop PI parameters are obtained from the linear
switchover between the two groups of PI parameters, as shown in Diagram 6-30.
Diagram 5-30 Relationship between running frequencies and PI parameters
Summary of Contents for EM12 Series
Page 5: ......
