Adc ClearGain Dual Inline Tower Mounted Amplifier Syst Manual de usuario descargar pdf (Pagina 22)

ADCP-75-214 • Issue 2 • September 2006

Page 16

4.4 Troubleshooting Matrix

If directed in Section 4.3 to consult a troubleshooting matrix, see Table 1 below.

Note: ClearGain PDU DIP switches must be in the down position for each active MHU!

Note:

ClearGain PDU input voltage must be in the range –56 to –20 VDC or +20 to +56 VDC.

Table 1. Troubleshooting Matrix

PARAMETER SPECIFICATION EXPLANATION

GREEN/YELLOW

OK LED

RED GENERAL

ALARM LED

Electronic Load

Each Path OFF < 180 mA Fail OFF ON

Each Path ON 180 – 220 mA OK GREEN OFF

Total Fail 370 – 400 mA Fail OFF ON

Short Circuit

Protection

1.5 A ± 10% Fail GREEN ON

Short state of MHU path does not affect other path. After generating Green alarm,

the short state is held for ten seconds then Red alarm is generated by the PDU.

Circuit Fluctuation Min 180 mA

Max 380 mA

One path failed. YELLOW ON

Input Voltage

–56 to –20 VDC /

+20 to +56 VDC

OK GREEN OFF

Output Voltage 15 V, 4% Total failure. OFF ON

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Adc ClearGain Dual Inline Tower Mounted Amplifier Syst Manual de usuario Pagina 22