Quick Start
Copyright © Itech Electronic Co., Ltd. 20
⚫ To avoid burning out, be sure to confirm that power voltage matches with
supply voltage.
⚫ Be sure to connect the main power socket to the power outlet of protective
grounding. Do not use terminal board without protective grounding. Before
operation, be sure that the power supply is well grounded.
⚫ To avoid burning out, pay attention to marks of positive and negative
polarities before wiring.
Selftest steps
The procedures of the self-test are as follows:
1. Correctly connect the power cord. Press [Power] key to start up. VFD display
software version “BOIS Ver X.XX”.
2. About 1S later ,system self-check “SYSTEM SELF TEST”。
3. About 1S later, detect all modules installed. VFD displays the following
information.
CH1/2/3/4/5/6/7/8 SCAN…
□7□5□3□1
4. About 1S later, display information of channel 1 or the most left channel.
Use up and down key to select other channels.
Such as：CH01 CV OFF
Vdc=0.0000V
Adc=0.0000A
Wdc= 0.00W
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 “ ” On 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:
1) Pull out power line and take out the fuse box at power line jack with a
small screw driver. As shown below.
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