NF HSA42011, Инструкция по эксплуатации

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5.2 When Fault
Symptoms Are Observed
HSA42011 5-6
Table 5-5. When Fault Symptoms Are Observed (2/2)
Symptom Possible cause Action required
The overload LED
(OVLD) is on.
An overload is imposed.
If the overload LED is turned off by removing the
load, connect a load within the maximum allowable
output range or reduce the output level.
The signal level of the signal
generator is excessively high.
Lower the level of the connected signal generator.
An incorrect gain setting is made. Set a proper gain by using a gain switch (GAIN).
The ambient temperature is high.
When using this product, ensure that the ambient
temperature is 40

C or below.
The air filters are clogged.
Referring to " 6.2 Daily Maintenance ", clean the
air filters.
There is an obstacle to air
circulation near the front panel air
inlet or rear panel air outlet.
Install this product to satisfy the installation
conditions described in "
2.2 Installation ".
A voltage beyond the maximum
allowable output of each voltage
range is output.
The input signal level may be too high. Lower the
input signal level.
When bias addition is on, lower the bias addition
level.
Depending on the load, output voltage is higher than
the voltage determined by the input voltage × gain
due to resonance.
DC is output.
Bias addition is set to ON. Set bias addition to OFF with the bias (BIAS).
DC voltage is superimposed onto
the signal source. Adjust the DC component of the signal generator to
zero.
The output on/off
switch (OUTPUT)
blinks and output is
turned off even when
the overload LED
(OVLD) is not turned
on.
This product has turned off output
since the overload state has lasted
for 10 seconds or more. An overload is imposed. Connect a load within the
maximum allowable output range or reduce the
output level.
Protection against abnormal
output voltage has been actuated.
Overcurrent protection may be actuated when an
inductive load is connected, resulting in overvoltage
output.
Finely adjust the output offset voltage to zero,
referring to "
3.5.3 Fine output offset
adjustment ".