Cooper Instruments & Systems DFI INFINITY Digital Force Indicator/Controller - Manual (Page 74)

17.2 Troubleshooting Guide
99999
POSSIBLE CAUSE: Active decimal point change driving the display into numerical overload.
TO CORRECT: Press the ‘MAX’ button to reset the entire display to all zeros, then enter a revised number into the
submenu item that caused the overflow.
ERR 01
POSSIBLE CAUSE: Active decimal (“RDG.2=0”) has been selected and/or DEC PT (decimal point) position has been
moved one or more places to the left driving the programmed offset value into numerical overflow.
TO CORRECT: Press the ‘MENU’ button and the meter will show the left most decimal point position possible for the
chosen offset: by pressing the ‘MENU’ button again this revised entry is stored. Alternately, the amount of RDG.OF
may be reduced to get the decimal point further to the left.
ERR 02
POSSIBLE CAUSE: Active decimal (RDG.2) has been selected and/or DEC PT (decimal point) position has been
moved one or more places to the left driving the programmed Setpoint value into numerical overflow.
TO CORRECT: Display will flash “ERR 02” message for a short period of time, then automatically correct the
setpoint’s decimal point position and move to the next menu item. Press the ‘SETPT’ button until the meter displays
flashing “999999”. Then press the ‘MAX’ button to reset the display to “000000” and enter a new valid setpoint value.
+OVLD
POSSIBLE CAUSE: The positive input CURRENT & VOLTAGE exceeds the input range selected.
TO CORRECT: Check both the input range and the actual input to find the error condition and either reduce the input
or change jumpers to a higher input range for more input attenuation.
-OVLD
POSSIBLE CAUSE: The negative input voltage exceeds the input range selected.
TO CORRECT: Check both the input range and the actual input to find the error condition and either reduce the input
or change jumpers to a higher input range for more input attenuation.
+OPEN
POSSIBLE CAUSE: Input sensor is open or broken, or the connection to the meter is open or broken.
Input sensor is not wired to the proper input terminals.
TO CORRECT: Check thermocouple or RTD wiring.
-OPEN
POSSIBLE CAUSE: The input sensor is open or broken, or the connection to the meter is open or broken.
The input sensor is not wired to the proper input terminals. The input signal is below the minimum specified (refer to
Section 18, Specifications).
TO CORRECT: When jumper S2R on the signal input board is used, this will be indicated if a sensor lead is broken
or otherwise opened.
Check thermocouple or RTD wiring.
I OVSC
POSSIBLE CAUSE: The input scale and/or offset values chosen are large enough to drive the display into numerical
overflow.
TO CORRECT: Reduce the input and/or the input scaling/offset. Refer to “IN.SC.OF” in Section 9.2.5.
R OVSC
POSSIBLE CAUSE: The reading scale and/or offset values chosen are large enough to drive the display into
numerical overflow.
TO CORRECT: Reduce the READING scale/offset and/or move the active decimal point to the right.
Reducing INPUT scale/offset is not required, because the input over scale message has higher priority than this
message and would be displayed if there were an input over scale.
CB OVF
POSSIBLE CAUSE: CNT BY (count by value) has been changed causing the display to round up to a numerical
overflow.
CF 67 69 M1291/N/0403 11279ML-02 Rev. A