Local Operation
3-19
Press 1 - 3 to choose a group to recall, then press ENTER to confirm. Then, the
display will return to CHOICE PAGE after the data is loaded.
The AC Source provides three memory groups: 1, 2, and 3. The memory
group 1 keeps the power-on defaults. The setup data saved to memory
group 1 will be recalled automatically when the AC Source is powered on
again. Those saved in other memory groups must be recalled manually.
3.9 Protection
The AC Source provides protections for software and hardware. When a protection happens,
the AC Source will quit the output and turn off the output relays, then show the type of
protection on the LCD display. If any protection is triggered to hold the normal output,
remove the errors and press
ENTER to unlock the protection so as to resume the normal
operation.
Protections for software are listed as below:
OVER CURRENT
It occurs when the output current is over the I limit or the current
specification.
It occurs when the output power is over the specification.
OUTPUT OVP
1. It is the feedback for open protection, which means the
feedback loop is broken or the output voltage goes wrong.
2. It occurs when the output voltage is over the limit of each
Protections for hardware are listed as below:
Ths fan failure protection that indicates the cooling fan is
malfunction.
The inner AD power stage (see 5.1) protection that indicates the
output voltage is over or under the specific value.
The inner DD power stage (see 5.1) protection that indicates the
output voltage is over or under the specific value.
The short protection that indicates the output terminals are
shorted.
The power failure protection that indicates the line input voltage is
lower or higher than specification.
The over temperature protection, which is enabled when the
internal temperature of the AC Source is too high.
Recall parameters of Group ( 1 -
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