Array electronic 3750A, Manual

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Chapter III Installation
51
ARRAY
3.3 PowerOn/Self-check
A power-on self-test can inspect the basic operations of the load as a preliminary test method for
the load acceptance.
Before powering on the load, please check the AC power-line voltage to make sure that the
voltage of the Toggle Key on the rear panel is the same with the local power supply voltage.
A power-on self-test will occurs automatically after connecting the power-line cord and pressing
the Power Switch (as in the following diagram) on the front panel.
If the unit fails to start up properly or does not turn on, please contact the supplier.
If the load detects an error during the power-on self-test, the error messages will be displayed. The
error messages are as shown in the followings:
Error Code Error Explanation
601 LCD self-test error
603 System ADC test failed
607 Rundown too noisy
608 Keypad self-test error
609 EEPROM checksum failed
630 Temperature test failed
If there is no error being detected, it will enter CCL mode interface as default and the input of the
load is OFF. Then power on the load and execute the following test after thirty-minutes warm up.
Connect the output of a power supply, which is with CV and CC mode, to the load’s input with
correct polarity to execute CCH 5A and CV 5V operations. If the load runs normally, it will draw
the current of 5A or regulate the input voltage to 5V within the allowed tolerance specified in this
manual. Thus it can be concluded that the basic work of the load is normal.