Programmable DC Power Supply 62000P Series Operating & Programming Manual
3.3.5.8 FANLOCK Protection
Fans are built-in inside the DC Power Supply to ventilate the heat generated by components.
If one of the fans is fail (not running), FANLOCK protection will occur and the output will
turn off that is OUTPUT = OFF for protection.
When FANLOCK occurs the main page will prompt a protection message as shown below:
V _ S E T = 8 0 . 0 0 V I _ S E T = 1 5 . 0 0 A O F F
0 0 . 0 0 V 00 . 00A
0 . 0
F A N L
CK
Figure 3-70
NOTICE
1. Troubleshooting:
(1) If FANLOCK protection occurs again, please contact sales agent for repair services.
(2) Keep the two sides and the rear of DC Power Supply clear when in loading state to
prevent Over Temperature Protection from occurring.
2. When FANLOCK protection occurs, power off the instrument first and then power it on
again to see if it is caused by error action.
3.3.5.9 BUSOVP Protection
The PFC stage of internal main circuit converts the AC mains voltage to DC voltage for the
main circuit DC TO DC stage use. If the DC voltage is abnormal, the BUSOVP signal will
occur and the output will turn off that is OUTPUT = OFF for protection.
When BUSOVP occurs the main page will prompt a protection message as shown below:
3-44
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