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6
T
roubleshooting
Tr o u b l e s h o o t i n g l
6 - 7
B a s i c A l a r m s
( c o n t i n u e d )
Alarm
Message:
X20 slice is bad.
Hopper gate valve failure.
Calculated batch size is
greater than capacity.
Possible Cause
Power or Communications has been lost
to the PLC Slices in the blender electri-
cal panel.
Batch Weigh Hopper is not dumping
material.
The batch size is automatically adjusted
by the computer to produce the best
blend ratio possible. If the new calculat-
ed batch size is greater than the setup
parameter Setup/ Batch Hopper/”Over-
size Batch”, then this alarm occurs
.
Solution
Occurs if +24vdc is removed, or X2X
network communication is lost from
touch screen. Also occurs in conjunc-
tion with Mixer Door Open, as this
breaks the 24vdc interlock to the I/O
PLC Slices.
Display batch weight on Home Screen
to be sure weight displayed is less than
0.15 lbs when empty of material.
Calibrate Batch Hopper.
This usually occurs if very LOW per-
centage doses are attempted. The valve
for this low dosed component may be
too large. Consult the factory for assis-
tance.
(Continued)
Summary of Contents for TrueBlend SB-4
Page 6: ...iv l Table of Contents...
Page 38: ...3 10 l Installation...
Page 134: ...4 96 l Operation...
Page 160: ...6 10 l Troubleshooting...
Page 165: ...Appendix l C 2 Hole Locations for Blow Off Kit...
Page 168: ...D 3 l Appendix...