ITech IT8500plus Series User Manual page 21


Press [ Shift ] + [ 7 ], VFD display products information. You can press
3.
direction buttons to examine product's model/SN/software version.
Error Information References
The following error information may occur when an error occurs during Power
On self-test:

If the EEPROM was damaged, the VFD will display "Eeprom Fail".

If the lastest operation data in EEPROM is lost, then VFD will display
"Config Data Lost".

If the calibration data in EEPROM is lost, then VFD will display "Cal data
lost".

If the system setting data in EEPROM is lost, the VFD will display "Eeprom
data lost".Please press [ Shift ] + [ 4 ] and [ 0 ] to save after setting
parameters.
Exception handling
If the electronic load cannot start normally, please check and take measures by
reference to steps below.
1. Check whether the power line is correctly connected and confirm whether
the electronic load is powered.
Correct wiring of power line => 2
Incorrect wiring of power line => Re-connect the power line and check
whether the exception is removed.
2. Check whether the power in On.[ Power ] key is under "
status.
Yes => 3
No => Please check the [ Power ] key to start power and check whether
the exception is removed.
3. Check whether set power voltage of electronic load is larger than the power
supply voltage. If set power voltage is 220 V and the supply voltage is 110V,
the electronic load cannot start.
4. Check whether the fuse of electronic fuse is burned out.
If yes, change fuse. Detailed steps:


The third line display the input state/operation mode.
Pull out power line and take out the fuse box at power line jack with a
small screw driver. As shown below.
If the fuse is fused, please change fuse of same specification based on
machine model. See the table blow for matching information of fuse
and machine model.
Fuse specification
Model
(220VAC)
IT8511+ T0.5A 250V
IT8511A+ T0.5A 250V
IT8511B+ T0.5A 250V
Copyright © Itech Electronics Co., Ltd.
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" On
Fuse specification
(110VAC)
T1.25A 250V
T1.25A 250V
T1.25A 250V
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