Siemens Milltronics BW100 - Page 70

Page 66 Milltronics BW100 - INSTRUCTION MANUAL 7ML19985DJ01
mmmmm
Troubleshooting
• Error messages are cleared when the condition is remedied.
• RUN mode errors are suppressed during PROGRAM mode, zero or span calibration.
• Zero and span errors are cleared when zero or span is initiated. Errors that happen
during the calibration require re-starting the procedure.
• Program errors are cleared when any key is pressed.
• The messages E101 through E104 can be turned off (P949).
• The load cell errors are detected by certain conditions where it is apparent that the
load cell is not functioning or incorrectly wired. It is not a conclusive test, since even
with incorrect wiring, the resulting input from the load cell may be within a valid
range.
E101 (run)
load cell A mV reading is out
of range
error will appear if:
• mV signal from load cell A or
B is out of the 0-50 mV range
• the mV signal from load cell
A or B is less than the zero
calibration mV level minus
one half the span mV level
• A or B mV is greater than 4
times the span mV value
check load cell mV signal and
ensure that it is within range
check wiring
E102 (run)
load cell B mV reading is out
of range
E103 (run)
combined mV signal from
load cell A and B is out of
range
error will appear if the com-
bined mV signal from load cell
A and B is too low
check both load cell signals
and ensure that they are
greater than 0 mV
check wiring
E104 (run) faulty memory location found
cycle power and perform mem-
ory test (P901)
if error reappears, the BW 100
must be repaired or replaced.
OF
no speed signal check speed circuit or run con-
veyor
message diagnosis action