4
.
3 Trial Operation Procedures
4
.
3 Trial Operation Procedures
4
.
3
.
1 Power ON
4
.
3
.
1 Power ON
Checkpoints before Turning ON the Power Supply
Checkpoints before Turning ON the Power Supply
Check
that
the
power
supply
is
of
the
correct
voltage.
400
V
class:
3-phase
380
to
460
VDC,
50/60
Hz
Make
sure
that
the
motor
output
terminals
(U,
V,
W)
and
the
motor
are
connected
correctly.
Make
sure
that
the
Inverter
control
circuit
terminal
and
the
control
device
are
wired
correctly.
Set
all
Inverter
control
circuit
terminals
to
OFF.
When
using
a
PG
Speed
Control
Card,
make
sure
that
it
is
wired
correctly.
Make
sure
that
the
motor
is
not
connected
to
the
mechanical
system
(no-load
status)
4
.
3
.
2 Checking the Display Status
4
.
3
.
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 9 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.
4
.
3.3 Initializing Constants
4
.
3.3 Initializing Constants
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.
To initialize the constants, set “2220” in A1-03 (Initialize).
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 Sequenc e
Digital Operator Display
Remarks
Step
Key Sequenc e
Digital Operator Display
Remarks
Press 3 times.
Frequency Ref
U1-01 = 0.00 HZ
YD5000
Main Menu
Operation
YD5000
Main Menu
Initialize
Select Language
English
Initialize
Select
A1-03 = 0
Select
A1-03 = 2220
2-wire Initial
Entry Accepted
Initialize
Select
YD
3
000
N
Main
Menu
Initialize
Displays operation mode.
Displays initialize mode.
Puts the Inverter in initialize m
ode.
Displays the Initialize display.
Displays the constant setting
for
A1-03.
Initializes for a 2-wire sequence.
Writes the set values. “Entry Ac
cepted”is displayed for approxi
mately0.5 seconds.
Returns to the Initialize display.
Returns to the initialize mode di
splay.
4
.
3
.
4
Setting Input Voltage
4
.
3
.
4
Setting Input Voltage
Set the input voltage of the Inverter (E1-01) according to the power supply voltage.
Input Voltage: E1-01
Input Voltage: E1-01
*
*
*
*
* *
*
*
*
Is a registered trademark of yolico
YD3000N
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