TM 5-3895-374-24-2
Problem
Cause
Solution/Reference
Indicator damaged
4-6. Aggregate Feed
Problem
Cause
Solution/Reference
Belt feeders will not start
Feeder not selected
Variable speed drives
tripped
Check display on variable
speed drive
If not displaying (Rdy)
turn OFF power supply
and restore power to unit
Switch OFF
Sourcing drive or fuses
blown in main disconnect
or control fuses on drive
Restore power to drives
or replace necessary fuse
Control relays not working
Check control relays
Blending controller not
sending signal to PLC
controller
Check output modules
20,21,22,23 on blending
controller I/O rack
Speed signal not received
by variable speed drive
Check by selecting
manual
Check voltage at variable
speed drive terminals
A01 and E1 for voltage
>0 Vdc < 5 Vdc
See electrical drawings
AA00317 and AA00318
Manual speed not
available for bin control
Manual speed controls set
too low
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