NEC PCN-1815SSQN/1Cx2, Instruction Manual, Page: 65 / 110

GWP-G22906
Table 3-4 Faults from which the transmitter must be protected
Item Fault Condition
Component to be
Protected
Control Item
1. PA TEMP The temperature on the chassis of the
PA is over preset temperature.
PA Faulty unit : OFF
2. REF The reflected power is over. TX : OFF






operation
notching with
3. COOLANT
TEMP
The coolant temperature is over the
set temp.
PA
PA PS
TX : OFF
4. COOLANT
PRESSURE
The coolant pressure is abnormal. PA TX : OFF
after 20sec
5. COOLANT
EMPTY
The coolant tank on the pump rack
has become empty.
PUMP PUMP : OFF
TX : OFF
•
Faults which, if encountered, will cause indication only (see Table 3-5).
When one of these faults is encountered, the TX control unit will hold the
LED indication “ALARM” on the operation panel and send out a fault
answer to the external circuitry.
∗
Fault indications on the LCD Display are not hold (locked).
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