Testing The Front Panel Indicators; Testing The Auxiliary Alarm Relay Pc Board (Optional); Interpreting The Alarm Indicators - HindlePower AT30 SERIES Operating And Service Instructions

2.2.5. Testing the front panel indicators

• Press the
The meter will display 8888, and all status & alarm indicators will light.
The
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indicator lights whenever ac power is present, and the ac circuit breaker is
turned on. The
To test the action of the AT30 summary alarm relay, press and hold the
key for four seconds to transfer the relay. If you are monitoring
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the relay with a remote annunciator, it will detect the alarm condition.

2.2.6. Testing the Auxiliary Alarm Relay PC Board (optional)

If you have the optional Auxiliary Alarm Relay PC Board (A5) installed,
you can similarly test the six individual alarm relays. Press and hold the
key for four seconds to transfer the relays. If you are
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monitoring the relays with a remote annunciator, it will detect the alarm
conditions.

2.2.7. Interpreting the alarm indicators

There are six red alarm indicators at the right side of the front panel. An
indicator lights for each of the following alarm conditions:
•
HIGH DC VOLTAGE: lights whenever the dc output voltage exceeds the
specified alarm voltage setting. See Section 2.3.4 to learn how to adjust the
HVDC alarm setting.
•
LOW DC VOLTAGE: lights whenever the dc output voltage is below the
specified alarm voltage setting. See Section 2.3.4 to learn how to adjust the
LVDC alarm setting.
•
DC OUTPUT FAILURE: lights whenever the AT30 cannot provide its full
rated output voltage or its full rated output current. You cannot adjust this
alarm setting.
•
AC INPUT FAILURE: lights whenever the ac power supply to the AT30 is
interrupted.
•
POS GND: lights whenever leakage current from the battery positive terminal
to ground exceeds a specified threshold. *
•
NEG GND: lights whenever leakage current from the battery negative terminal
to ground exceeds a specified threshold. *
* The ground fault detection sensitivity can be adjusted
from 5 to 30 k
When an alarm occurs, the indicators will light immediately. The AT30
also features a summary alarm relay with one form-C contacts (TB3) rated
0.5A / 125 Vac/Vdc. If an alarm condition lasts for 30 seconds or longer,
the summary alarm relay transfers. Under standard settings, when the
alarm condition is corrected, the corresponding relay and indicator resets
automatically. Latching alarm capability for the AT30 is available,
featured in a supplemental Operating Instructions (JA5098-00).
key. This is also the
DOWN
key does not test the AC ON indicator. The AC ON
key does not operate when ac power is off.
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Ω
, see Section 2.3.4 on Page 32.
OPERATING THE AT30
key.
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