4
-4
Checking the Display Status
If the Digital Operator's display at the time the power is connected is normal, it will read as follows:
When an fault has occurred, the details of the fault will be displayed instead of the above display. In that case,
refer to Chapter 7 Troubleshooting. The following display is an example of a display for faulty operation.
Setting the Control Method
Any of the following five control methods can be set.
Note With vector control, the motor and Inverter must be connected 1:1. The motor capacity for which stable control is possible is 50% to 100% of the capac-
ity of the Inverter.
Display for normal operation
The frequency reference monitor is dis-
played in the data display section.
Display for fault operation
The display will differ depending on the
type of fault.
A low voltage alarm is shown at left.
Control Method
Constant
Setting
Basic Control Main Applications
V/f control A1-02 = 0 Voltage/frequency ratio fixed control
Variable speed control, particularly
control of multiple motors with one
Inverter and replacing existing Invert-
ers
V/f control with PG A1-02 = 1
Voltage/frequency ratio fixed control
with speed compensation using a PG
Applications requiring high-precision
speed control using a PG on the
machine side
Open-loop vector 1
control
A1-02 = 2
(factory setting)
Current vector control without a PG
Variable speed control, applications
requiring speed and torque accuracy
using vector control without a PG
Flux vector control A1-02 = 3 Flux vector control
Very high-performance control with a
PG (simple servo drives, high-preci-
sion speed control, torque control, and
torque limiting)
Open-loop vector 2
control
A1-02 = 4
Current vector control without a PG
with an ASR (speed controller)
(Always perform rotational autotun-
ing.)
Very high-performance control with-
out a PG (torque control without a PG,
torque limiting, applications requiring
a 1:200 speed control range without a
PG)
-DRIVE-
Frequency Ref
U1-01= 0 0 0.0 0Hz
-DRIVE-
Rdy
Frequency Ref
U1- 01= 60.0 0Hz
U1-03=10.05A
U1-02=60.00Hz
01
Frequency Ref
-DRIVE-
UV
DC Bus Undervolt
TOE-S616-60.1.book 4 ページ ２０１７年８月４日 金曜日 午後３時４１分
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