@X4-0047-5
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5.5. Alarm display
If an error occurs during operation, the corresponding alarm appears on the LCD screen.
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When the high-voltage output value fluctuates
- 1 0 0
0 V
O N
u n s
t a b l e
L
O
C
A
L
When the voltage fluctuates 100 V or more while no load is connected, the output might
become unstable in rare cases. If this happens, turn off the high voltage output and then slowly
increase it while viewing the monitor voltage display.
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When the control voltage differs by 2 V or more from the monitor voltage
- 1 0 0
0 V
O N
d i f f
e r e n c
e
L
O
C
A
L
The output voltage drops if the load resistance is so low that a current higher than the rated
current flows. In this case, turn off the high voltage output and then check the load resistance.
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When the low-voltage output voltage drops
When the ±5V or ±15V output voltage drops to below 90%, one hexadecimal character flashes
in the upper right corner of the LCD screen.
The bit corresponding to each voltage is as follows:
-15V (2^3), +15V (2^2), -5V (2^1), +5V (2^0)
When -5V and -15V drop, the display will be 2^1 + 2^3 = 10 = &HA.
-
0 V
O F
F
e
t
c
.
A
1 0 0
0 V m a x
.
R
e
s
e
t
The load resistance might be too low so that a current higher than the rating has flown.
Turn off the high voltage output and then check the load resistance.
If the problem cannot be corrected even after checking the above points, then please consult our
sales office or return the product to us along with a detailed description of the problem.
