E6581158
E-6
5
If vector control cannot be programmed....
First read the precautions about vector control in 5.11, 8.
1) If the desired torque cannot be obtained
⇒
see 6.17,2
2) If auto-tuning error “
GVP
” appears
⇒
see 6.17,3
Q
CW
(automatic torque boost) and
RV
(V/F control mode selection 1)
Automatic torque boost is the parameter for setting V/F control mode selection 1 (
RV
) and auto-
tuning (
H
) together. That is why all parameters related to change automatically when
CW
is
changed.
Automatically programmed parameters
CW
RV
H
Displays
after resetting
-
Check the programmed value of
RV
. (If
CW
is not changed, it becomes 0 (V/F
constant)
-
Automatic torque boost +
auto-tuning
Automatic torque boost
Executed
(
after execution)
Vector c auto-tuning
Sensorless vector control
Executed
(
after execution)
Energy auto-tuning
Automatic energy saving
Executed
(
after execution)
4) Increasing torque manually (V/F constant control)
This is the setting of constant torque characteristics that are suited for such things as conveyors. It can also
be used to manually increase starting torque.
If V/F constant control is programmed after changing
CW
,
Set V/F control mode selection 1
RV
=
(V/F constant).
⇒
see 5.11
Note 1: To further increase torque, increase the torque boost amount 1
XD
.
How to set the torque boost amount 1
XD
⇒
see 5.12
Note 2: V/F control selection 1
RV
= 1 (variable torque) is an effective setting for the load on such
equipment as fans and pumps.
⇒
see 5.11