Platinum Z5 CD - UPS, Uninterruptable Power Supply Fault; CPLR_NC, Forward Directional Coupler Cable Not; Connected; IPA_AB#_MUTE, Fault

6-18 888-2408-002
WARNING: Disconnect primary power prior to servicing.
Troubleshooting
6.9.10 UPS, Uninterruptable Power Supply Fault
This fault indicates that the transmitter has switched over to the UPS (or generator
possibly). The transmitter power output is now controlled by the UPS Power Level
setting in the Configuration menus of the Diagnostics Display. To check or set the
UPS Power Level press [CONFIGURATION B,D,A]. The default factory setting is
1.00 kW. Use the ABCD keys to set a new UPS power level. Press [BACK] to save
any changes and [HOME] to cancel any changes.
6.9.11 CPLR_NC, Forward Directional Coupler Cable
Not Connected
This fault is active anytime the sample cable from the Forward power directional
coupler to the Life Support Board is disconnected. The fault immediately mutes the
transmitter until the cable is re-connected due to the effect this would have on the
Automatic Power Control (APC) loop.
6.9.12 IPA_AB#_MUTE, Fault
This fault could be for IPA_AB1 or IPA_AB2. Whenever the IPA is muted, the
control system checks the IPA current draw by the IPA amplifier. If the current is
not less than 1 amp, then the system does not have the ability to shut off the IPA and
will mute the system by shutting off the PAs and the exciter.
6.9.13 IPA_AB#_LOW, (Power) Fault
If one of the IPAs should be putting out power, but is not according to the IPA
directional coupler sample (from the IPA Backplane Board), the controller will
switch to the second IPA (provided it has not previously faulted off). The controller
looks to see if the exciter or IPA is muted before reporting this fault.
6.9.14 IPA_AB#_OC, Fault
This IPA Over-Current fault could be for IPA_AB1 or IPA_AB2. The overcurrent
threshold is 14.5 amps. If this IPA current limit is exceeded, the transmitter will
automatically switch over to the second IPA.
6.9.15 IPA_TW, IPA Temperature Warning
If the temperature of an IPA exceeds 85°C the fan will be switched to high speed
and IPA_TW will be registered in the Fault Log. There is a 10°C hysterisis so the
fan will not switch back to low speed until the IPA reaches 75°C or less.
6.9.16 IPA_OT, Fault
If the IPA amplifier temperature exceeds 100°C, as detected by the thermal sensor
on the amplifier, the transmitter will initiate a switch to the other IPA. If one of the
thermistors or its wiring is shorted the temperature indication will be approximately
155°C.