P/N R9340-0104 21 © 2010 RAILWAY EQUIPMENT CO.
REV B
5/11
6. AC FREQUENCY FAULT:
AC frequency fault is set when AC frequency is either above or
below frequency setpoints. This fault is generally caused by a
backup power source not being able to handle the load.
7. CHECK FUSE # 2 5VDC:
Fuse # 2 is tripped. Check the following circuits:
a.
Ambient
temperature
sensor.
b.
Rail
temperature
sensor.
After the problem is corrected and the unit cools down for 30
Seconds, the fuse will reset.
8. CHECK FUSE # 6 115VAC:
Fuse # 6 is tripped. Check the following circuits:
a. T1 terminal 5 115VAC power.
b.
J15
wifi
power.
After the problem is corrected and the unit cools down for 30
Seconds, the fuse will reset.
9. CHECK FUSE # 1 24 VDC POWER:
Fuse # 1 is tripped. Check the following circuits:
a.
Overtemp
switch
and
wiring.
b. Check TS1-2 +24 control on wiring.
After the problem is corrected and the unit cools down for 30
Seconds, the fuse will reset
10. CHECK FUSE # 3 SNOW HEAD # 1:
Fuse # 3 is tripped. Check the following circuits:
a. Check snow detector head # 1 and wiring.
After the problem is corrected and the unit cools down for 30
Seconds, the fuse will reset.
11. CHECK FUSE # 4 SNOW HEAD # 2:
Fuse # 4 is tripped. Check the following circuits:
a. Check snow detector head # 2 and wiring.
After the problem is corrected and the unit cools down for 30
Seconds, the fuse will reset.
12. VOLTAGE FAULT PHASE 1:
Voltage fault phase 1 is set when phase 1 line voltage is either
above or below voltage setpoints.
Summary of Contents for 934
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