My upper display has all the decimal points lit on my (N Series control). How can I clear this problem?

Submitted byglx25v onFri, 08/17/2018 - 17:29

Acknowledging the 'Default' Display (6100/8100/4100 N Series)

Note: parameters shown are for illustration purposes only. Certain parameters such as Range Code and Hardware Definition Codes can vary greatly based on your requirements. Setup mode parameters illustrate the standard settings but may in some cases not provide adequate control. It is the customers responsibility to maintain a record of control settings.

After changing a parameter in the configuration mode the setup control parameters will revert to default factory parameters. Also a large electrical noise disturbance such as a lightning strike can also cause this occurrence. The upper display will signify this by lighting all decimal points. Example: for 305 degrees. You will need to go into the setup mode and change at least one parameter to acknowledge this condition. This will cause the display to shut off the unneeded decimal points. You should confirm that all setup parameters are set according to your application requirements.

Set Up Control Parameters ( PID ):
(Parameters Shown illustrate settings for a dual output heat/cool control)

Note: To enter the Setup Mode you must be in normal display mode ie: SP is not shown in the lower display to enter this mode).

To enter the control parameter setup mode:

(1) Press "Up" & "Scroll" keys simultaneously and release.

(2) ULoc will be shown in lower display. Enter your ULoc code (normally "10") by using the "Up" or "Down" keys.

(3) Press the "Scroll" key. Use the "Scroll" key to move from parameter to parameter.
Use "Up" & "Down" keys to change values. Changed values do not require pressing the "Hand" key to enter values. They are stored on any change.

Changing any of the modifiable parameters will cause the extra decimal points to be turned off.

Standard ISE Setup Parameters
Lower Display / Upper Display

Filt 2.0 Input filter
OFFS 0 Input offset
Out1 Read only (Present output #1 level)
Out2 Read only (Present output #2 level - if output 2 is installed)
Pb1 5.0 Proportioning band width #1 (% of full scale)
Pb2 5.0 Proportioning band width #2 (% of full scale)
rSEt 5.00 Reset time constant in MM.SS
rAtE 1.15 Rate time constant in MM.SS
OL 0 Overlap (+/- % of PB1 +PB2)
biAS 25 Reset preload in %
SPhi 842 Maximum setpoint limit (Range Dependent)
SPLo 32 Mininum setpoint limit
OPhi 100 Maximum output
Ct1 16 Cycle time out #1
Ct2 16 Cycle time out #2
LAEn 0 Loop alarm (off)
APt 0 Auto pretune (off)
PoEn 0 Manual control (disabled)
rPEn 0 Setpoint ramping (disabled)
SPSt 1 Display strategy #1
Loc 10 Change to change ULoc code