60
SI 580E DIN SIZE WEIGHING CONTROLER
www.sewhacnm.co.kr
7. Error & Treatment
7-1.
Load Cell Installation
Error
Cause
Treatment
Remarks
Weight Value is
unstable
1. Load cell broken
2. Load cell isolation
resistance error
3. Weighing part
touches other devices or
some weight is on the
weighing part
4. Summing Board
Error
1. Measure
input/output resistance
of Load cell.
2. Measure Load cell
isolation resistance
1. Input Resistance of
“EXC+” and “EXC-“ is
about 400Ω ±30
2. Output Resistance
of “SIG+“ and “SIG-”
is about 350Ω ±3.5
3. Isolate Resistance
is more than 100MΩ
Weight Value is
increased regular
rate, but not return
to “Zero”
1. Load cell Error
2. Load cell connection
Error
1.Check Load cell
connection
2. Measure Load cell
Resistance
Weight Value is
increased to under
Zero
Load cell Output wire
(SIG+, SIG-) is switched
Make wire correction
“UN PASS” display
Load cell broken or
Indicator connection
Error
Load cell Check
Load cell connection
Check
Power was “ON” when
some weight is on the
load cell?
Remove weight on the
Load cell
“OL” or “UL”
display(Over Load)
1. Load cell broken or
Indicator connection
Error
2. Loading over than
Max. Capacity
1. Load cell Check
2. Load cell connection
Check
3. Remove over loaded
weight
