Walchem W600 Series Instruction Manual page 94

Ethernet card not seated correctly
Faulty Ethernet card
WEB SERVER FAILURE
This alarm occurs if the web server on the Ethernet circuit board fails
Possible Cause
Web server locked up
Faulty Ethernet card
VTouch DATA COMM ERROR
This alarm occurs if the controller attempts to send data to VTouch and VTouch fails to acknowledge receipt of the data
Possible Cause
No connection to LAN
Wrong IP, subnet and/or gateway address
LAN is blocking outside access
Network card failure
SENSOR CAL REQUIRED
This alarm occurs if the sensor's Cal Reminder Alarm has been set to more than 0 days and if the sensor has not been calibrated
within that number of days
Possible Cause
Time to calibrate
Reminder set in error
CALCULATION ERROR
This alarm occurs if a virtual input calculation cannot be completed, for example if it has to divide by zero.
Possible Cause
Zero value for the input used as the denominator
DI FLOW VERIFY
This alarm occurs if the control output is on but the associate flow verification device is not registering flow
Possible Cause
Metering pump has lost prime
Faulty metering pump
Faulty verification device wiring
Wrong digital input assigned to the output
Faulty verification device
Faulty wiring of output to pump
Faulty output board
Faulty digital input
CONTROLLER, POWER, DISPLAY, OR SENSOR BOARD ERROR
This alarm occurs if the board listed is not recognized
Possible Cause
Poor ribbon cable connection
Poor option card connection
Faulty board
CONTROLLER, POWER, SENSOR, DISPLAY, NETWORK OR ANALOG OUTPUT BOARD VARIANT
This alarm occurs if the type of board that is detected is not a valid type
Possible Cause
Poor ribbon cable connection
Faulty ribbon cable
Faulty Board
Unplug the network card and plug it back in
Replace Ethernet card
Correction Action
Try a power cycle to reset it
Replace Ethernet card
Correction Action
Connect Ethernet cable to LAN
Program valid settings for LAN in the controller or use DHCP if
supported by the LAN
Program LAN's router to open access
See above
Correction Action
Calibrate the sensor
Set the Cal Reminder Alarm to 0
Correction Action
Calibrate or evaluate that input
Correction Action
Re-prime metering pump
Repair or replace pump
Correct wiring
Correct programming error
Repair or replace device
Correct wiring
Repair or replace board
Replace board
Correction Action
Remove and reseat ribbon cable, cycle power
Remove and reseat the board, cycle power
Return the controller for repair
Correction Action
Reseat ribbon cable
Replace ribbon cable
Replace the board listed in the error message
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