6-42
888-2586-001
9/15/06
WARNING: Disconnect primary power prior to servicing.
Platinum Z16HD+
Section 6 Troubleshooting
6.15.2.7 PS#_JUMP
If a power supply tap fails and the next one available is two or more taps away, a JUMP
fault is triggered and the supply will be shut off and discharged. The only situations
where this could happen are:
•
If operating in tap 1 and it fails, having previously failed tap 2.
•
If tap 2 is being used and fails, and tap 1 and tap 3 have failed previously.
•
If tap 3 is being used and fails, and tap 2 and tap 4 have failed previously.
6.15.3 Non-Critical Power Supply Faults
Non-Critical faults provide indications that there is a problem with the power supply
which is not serious enough to take any immediate transmitter action, but should be
corrected as soon as possible.
6.15.3.1 PS#_TAP#, Power Supply Tap Fault
Detection is based on the level of 50/60 Hz ripple at the output of a two stage, DSP
based, band pass filter in the PS Controller. The BPF is looking at the DC input voltage
data from the PA Power Supply (+52Vdc). It is interpreted as an indication of a
transformer secondary fault which could be a fuse or SCR.
If one of the taps has been detected as faulty the next available tap (lower ones are the
first choice and the next upper one is the second choice) will be connected depending
on availability.
Note that if the power supply chassis is not properly grounded, or is completely
floating, this induces a considerable amount of 50/60Hz in the voltage sample lines to
the controller so as to erroneously trip this type of fault. The fault is logged as
PS#_TAP1 (up to TAP4) where # is a power supply number from 1-4. This fault is the
same for 3 phase and single phase transmitters.
Table 6-1 shows the SCRs and fuses on each Rectifier Board associated with each of the
taps. Each 3 phase transformer has an “A” side and a “B” side Rectifier Board (one for
each secondary winding). The single phase transformers only have one secondary.
Figure 6-14 is a component locator for the 3 Phase supply. It is a top view with the
Rectifier Boards displayed horizontally instead of vertically (the bottom is tipped out).
Figure 6-15 is a Top View component locator for the Single Phase power supply.
Summary of Contents for Platinum Z16HD+
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Page 6: ...9 15 06 888 2586 001 MRH 1 WARNING Disconnect primary power prior to servicing ...
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Page 10: ...x 888 2586 001 9 15 06 WARNING Disconnect primary power prior to servicing ...
