NEC DTU-70 Instruction Manual page 72

18kw uhf digital tv transmitter
Table of Contents

Advertisement

Use
No.
Item
WATER LEVEL LOW
32
33
WATER LEVEL
EMPTY
34
(CIB COOLING
FAULT)
AC MAINS FAIL
35
TOTAL ALARM
36
37
TOTAL WARNING
38
TX CONT CPU FAULT
39
COMMUNICATION
FAULT
40
DC PS FAULT
41
CONT PS OFF
Table 3-10 (continued)
Terminal No.
+
-
32
41/42 Means that the quantity of coolant in the
coolant tank on the pump rack decreased to
a lower level than the set level.
41/42 Means that the coolant in the coolant tank
33
on the pump rack was used up.
34
41/42 No use.
35
41/42 Means that three phase power supply for
transmitter is abnormal such as undervoltage
or phase failure.
36
41/42 Some fault occurred in the transmitter.
37
41/42 Means that some minor fault occurred in the
transmitter.
38
41/42 Means that the CPU of the TX control is
abnormal.
39
41/42 Means that communications between the TX
control and the PA is abnormal.
40
41/42 Incase of dual power for TX control, when
DC PS is turned OFF, this signal is sent out.
43
41/42 When the power supply for this TX Control
is turned OFF, the TX CONT PS OFF signal
is sent out.
3 - 24
GWP-G22996
Description

Advertisement

Table of Contents
loading

Table of Contents