Operation
BASIC OPERATION 76
4.4 Operation
4.4.1 Check and preparation before running
Before running, the following shall be checked:
1. Check if the wiring is correct. Inverter output terminals (U/T1, V/T2, W/T3) cannot be connected to the power.
Confirm that grounding terminal (
) is well grounded.
2. Confirm that there is no short circuit or short circuit to ground between the terminals or each exposed live part.
3. Confirm all terminal connections, and check if plug connectors (optional) and screws are all fastened.
4. Confirm that the motor is not connected to any load or mechanism.
5. All external switches are in off state before the power is turned on. When the power is turned on, the inverter
will not start and no abnormal action will occur.
6. Turn on the power only after the cover is well placed.
7. Do not touch the switch with wet hands.
8. Make sure the following after power on:
(1). PU301 power indicator in
POWER
will light up, alarm indicator in
ALARM
won’t light up.
(2). PU301 keypad, both indicator in
Hz
and
EXT
will light up.
4.4.2
Running methods
For every running method, please refer to basic operation procedures in chapter
4
and parameter description in
chapter
5
.
Select the most appropriate operation methods according to the application requirements and regulations.
The most commonly used operation methods are shown below:
Operation method
Source of the target frequency
Source of the run signal
keypad operation
>
or
>
or
FWD
or
REV
External terminal signal
operation
Inverter
M0
M1
M2
Parameter
Setting :
SD
04-00(P.4)=40
04-01(P.5)=30
04-02(P.6)=10
Input by digital input terminal:
STF-SD
STR-SD
10
2
5
Inverter
2-5 terminal input
