
Trial Operation
5.2.1 Power ON
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5.2
Trial Operation Procedures
5.2.1 Power ON
J
Checkpoints before Turning ON the Power Supply
D
Check that the power supply is of the correct voltage.
200 V class: 3-phase 200 to 230 VDC, 50/60 Hz
400 V class: 3-phase 380 to 460 VDC, 50/60 Hz
D
Make sure that the motor output terminals (U, V, W) and the motor are connected correctly.
D
Make sure that the Inverter control circuit terminal and the control device are wired correctly.
D
Set all Inverter control circuit terminals to OFF.
D
When using a PG Speed Control Card, make sure that it is wired correctly.
D
Make sure that the motor is not connected to the mechanical system (no-load status)
5.2.2 Checking the Display Status
If the Digital Operator’s display at the time the power is connected is normal, it will read as follows:
Frequency Ref
U1--01 = 0.00 HZ
Normal
The frequency reference monitor is
displayed in the data display section.
When an fault has occurred, the details of the fault will be displayed instead of the above display. In that
case, refer to Section NO TAG Maintenance Operations. The following display is an example of a fault
display.
UV
Under Voltage
Fault
The display will differ depending
on the type of fault.
5.2.3 Initializing Constants
D
When replacing the controller PCB, check the Inverter capacity (kVA) in o2-04 first and then initialize
constants to the factory settings. There is no need to initialize constants the first time trial operation
is performed after purchasing the Inverter.
D
To initialize the constants, set “2220” in A1-03 (Initialize).
D
After initialization, the access level is set to Quick-start (A1-01). The following table shows the setting
method for Quick-start.
Use the following procedure to initialize constants.
Step
Key Sequence
Digital Operator Display
Remarks
Frequency Ref
U1--01 = 0.00 HZ
1
MENU
MC5
Main Menu
Operation
Displays operation mode.
2
MC5
Main Menu
Initialize
Displays initialize mode.
3
DATA
ENTER
Select Language
English
Puts the Inverter in initialize mode.
4
Press 3 times.
Initialize
Select
Displays the Initialize display.
5
DATA
ENTER
A1-03
=
0
Select
Displays the constant setting for
A1-03.
6
A1-03
=
2220
2--wire Initial
Initializes for a 2-wire sequence.
7
DATA
ENTER
Entry Accepted
Writes the set values. “Entry Accept-
ed” is displayed for approximately
0.5 seconds.
Initialize
Select
Returns to the Initialize display.
8
ESC
MC5
Main Menu
Initialize
Returns to the initialize mode display.
5