680 Synergy Plus – Digital Weight Indicator
60
Visit our website
10.0 Maintenance
The maintenance information in this manual is designed to cover aspects of maintaining and troubleshooting the 680 indicator.
Contact the local Rice Lake Weighing Systems dealer if a problem requires technical assistance.
Have the scale model number and serial number available when calling for assistance.
10.1 Maintenance Checkpoints
The scale must be checked frequently to determine when a calibration is required. It is recommended a zero calibration be
checked every other day and a calibration checked every week for several months after installation. Observe the results and
change the period between calibration checks, depending upon the accuracy desired.
Establish a routine inspection procedure. Report changes in the scale function to the individual or department
responsible for the scales’ performance.
10.2 Field Wiring
If a problem with the wiring is suspected, check the electrical portion of the scale.
• Check for proper interconnections between the components of the system
• Check wiring meets all specifications in the installation drawings
• Check all wiring and connections for continuity, shorts and grounds using an ohmmeter with the scale off
• Check for loose connections, poor solder joints, shorted or broken wires and unspecified grounds in wiring; these issues
cause erratic readings and shifts in weight readings
• Check all cable shields to ensure grounding is made at only the locations specified in the installation drawings
10.3 Troubleshooting Tips
lists general troubleshooting tips for hardware and software error conditions
Symptom
Possible Cause
Remedy
680 does not power up
Bad power supply
Check power supply; Check presence of AC power – breaker tripped or unit
unplugged; Power supply outputs around 12 VDC – replace if bad
Battery backed corrupt error message at
startup
Dead battery
Perform configuration reset then check for low battery warning on display;
If battery is low, replace battery, perform another configuration reset, then reload
files/configuration
or
vvvvvvv
Over or under range scale
condition
Check scale; For out-of -range conditions in total scale display, check all scale
inputs for positive weight values
Display reads 0.000000
Scale not updating
Make sure all cables/wires are connected for the pulse input and/or load cell;
Cycle the power
Cannot enter setup mode
Bad switch
Test switch
Serial port not responding
Configuration error
Ensure port INPUT parameter is set to CMD for command input
A/D scale out of range
Scale operation
Load cell connection
Bad load cell
Check source scale for proper mechanical operation
Check load cell and cable connection
Check 680 operation with load cell simulator
Check status of sense settings
Option card failure
Possible defective card
or slot
Disconnect power, remove and reinstall card in slot, then apply power again
Table 10-1. Basic Troubleshooting
Note
Note
vvvvvvv
