Nautel GV30N, Руководство по устранению неисправностей

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GV30N TROUBLESHOOTING MANUAL RESPONDING TO ALARMS
VERSION 0.1 2014-11-01 PAGE 4.1.17
Controller: Turn On
Delay (Delaying Turn
On) Exciter (red) This alarm occurs, if the turn-on delay function is enabled, and transmitter is
not permitted turn-on until the delay period elapses. The turn-on delay
function is enabled upon an ac power failure and is typically used to add
delay for use with an external generator.
Controller: Very Low
Forward Power (Very
Low Fwd Power) Output Network
(amber) This alarm occurs if transmitter’s average forward power is below the low
forward power threshold (defaulted to 12.5% of the setpoint and is user
adjustable). Check for associated alarms, and follow the associated
troubleshooting procedure, if present.
Controller: +1.2V Fail Power Supply (red) This alarm occurs if the +1.2 V supply in the controller is 10% higher or
10% lower than its desired value. Check the output voltage of the LVPS
module. If necessary, replace the LVPS (see
“LVPS Module
Replacement” on page 4.1.47
). There may also be a problem with the
controller’s power supply PWB.
Controller: +1.8V Fail Power Supply (red) This alarm occurs if the +1.8 V supply in the controller is 10% higher or
10% lower than its desired value. Check the output voltage of the LVPS
module. If necessary, replace the LVPS (see
“LVPS Module
Replacement” on page 4.1.47
). There may also be a problem with the
controller’s power supply PWB.
Controller: +3.3V Fail Power Supply (red) This alarm occurs if the +1.2 V supply in the controller is 10% higher or
10% lower than its desired value. Check the output voltage of the LVPS
module. If necessary, replace the LVPS (see
“LVPS Module
Replacement” on page 4.1.47
). There may also be a problem with the
controller’s power supply PWB.
Controller: 10kW
Reject Fan 1 - 3 Fail
(10kW Rej Fan1-3
Fail) Output Network
(red) This alarm occurs if the 10 kW reject load () cooling fans are enabled and
the speed of a cooling fan [B6 (1), B7 (2) or B8 (3] is below 2000 RPM. 10
kW reject load cooling fans are enabled only when the reject load power is
greater than 300 W, possibly due to an RF power module removal or failure
or power supply removal or failure. Inspect the fan and, if necessary, replace
it (see
“Cooling Fan Replacement” on page 4.1.53
).
Controller: +12V A
Fail Power Supply (red) This alarm occurs if the +12 V supply in the controller is 10% lower or 10%
higher than the desired value. Check the output voltage of the LVPS module.
If necessary, replace the LVPS (see
“LVPS Module Replacement” on
page 4.1.47
). There may also be a problem with the controller’s power
supply PWB.
Device and
Alarm Name
(AUI, UI)
Controller Front
Panel LED (color)
Description and Troubleshooting Action