Chroma 61705 - Self-test and Troubleshooting; Self-test Procedures

Self-test and Troubleshooting
7-1
7. Self-test and Troubleshooting
7.1 General
This section describes the self-test steps and suggested troubleshooting procedures when
AC Source is not functioning normally. If the problem cannot be solved using the information
given here, consult with the distributor whom you purchased the unit.
7.2 Self-test
The AC Source performs a series of self-tests at power-on. First, it does the memory, data
and communication self-test. There are three items: DISPLAY, WAVEFORM, and REMOTE.
If any failure is detected on a certain item, an “error code” will be shown at the right side of
that item. The following table shows all of the error messages:
Error Code
Description
Remark
Bit 0
SRAM error
0 – OK, 1 - ERROR
Bit 1
CODE error
0 – OK, 1 – ERROR
Bit 2
DATA error
0 – OK, 1 – ERROR
Bit 3
Communication error
0 – OK, 1 - ERROR
Bit 4
Output test result
0 – OK, 1 – ERROR
Bit 5
Reserved
Bit 6
Reserved
Bit 7
Reserved
Example: If an error code shows “ERROR = 05”, the error code is “00000101” in binary.
The bit 0 and bit 2 are “1”. So “ERROR = 05” means SRAM error and DATA error
occurs.
Error Message
Description
Action
SRAM error
SRAM test fail
Consult your dealer for assistance.
CODE error
Program code test fail
Consult your dealer for assistance.
DATA error
Data in Flash or EEPROM
test fail
Consult your dealer for assistance.
Communication error
Cannot communicate
1. Power off the AC Source and wait for
three seconds to power it on again.
2. Consult your dealer for assistance.
After the self-test of memory, data and communication, the AC Source performs the power
output self-test. In this procedure, the output relays are OFF to ensure the load connecting
on output terminal is not harmed. Then, the AC Source will check if there is any protection
signal sent from the hardware. If it does, the display shows "Output self test <NG>". It
means the AC Source is abnormal. Press
ENTER to see what type of protection it is. If
there is no protection signal, the AC Source will program 300Vac and measure the voltage.
If the measured voltage is over 300V±5V, the power self-test is failed, and the display shows "
Output self test <NG> ". Probably AC Source has not been calibrated (updated the software
especially). Users can do the following steps to reassure it.