Bell & Gossett S14333 Technologic 5500 Series ZoneSav Controller - Manual (Page 22)

22
If Summer/Winter mode is enabled, the season for
which the setpoints will be modified will be shown in
the upper left corner. Switch to the other season by
pressing PREV. SCREEN or NEXT SCREEN. See
section 3.3.11.
To modify the setpoints, press NO and ENTER at the
OK prompt. Input the desired setpoints and press
ENTER. To accept the current setpoints, press YES
and ENTER at the OK prompt. The controller will
then return to the previous Status screen.
4.4 Process Variable Monitoring
To view the process variables and their setpoints,
press the PROCESS VARIABLE key while in one of
the status screens shown in section 4.1. The con-
troller will go to the System Parameters screen
shown below.
System Parameters
Temp= ###
Lim = ###
Flow= ##### Lim = #####
START AUTO COOL S/W
The System Parameters screen shows the system
supply temperature on the second line along with its
limit. If at least one analog input has type "Flw", the
system flow will be shown on the third line along with
its limit.
Press NEXT SCREEN to view the Zone Parameters
screen shown below.
Zone Parameters
Supply= ###
SP = ###
Return= ##### SP = #####
START AUTO COOL S/W
The second line shows the zone supply temperature
along with its setpoint. The third line shows the zone
return temperature along with its setpoint.
Press NEXT SCREEN to view the Active Inputs
screen shown below.
Active (PID) Inputs
PV= #####
SP= ###
Index Sply/Ret= ###/###
START AUTO COOL
S/W
The PV field will show the active process variable.
The SP field will show the active setpoint. Both of
these fields will be zero if flow limit control or system
supply temperature limit control is active. If the SP
was modified through a communications port or with
Summer/Winter operation, the current setpoint will be
shown here. If Summer/Winter mode is enabled, an
S or W will be displayed in the lower right corner to
indicate the current season mode. The indices of the
supply and return setpoints are also shown.
From any of the above Process Variable screens,
press CLEAR to return to the status screens.
4.5 Alarms
When the controller detects an alarm condition, the
display will flash ALRM in the lower right corner of all
of the status screens shown in section 4.1. If the cur-
rent screen is one of the status screens, the LED on
the HELP key will be flashing. Press the HELP key
for additional information on the alarm(s). To view
possible causes for alarms press the HELP key again
after the alarm is displayed. Refer to Table 32 below
for an overview of the possible alarms and their
respective causes. If more than four alarms exist
simultaneously, press NEXT SCREEN or PREV.
SCREEN to view the remaining alarms.
The controller logs alarms as they occur to aid in
troubleshooting unobserved alarms. Refer to Section
4.7.3 for alarm logging information. Press CLEAR to
return to the previous screen.
4.6 Warnings
When the controller detects a warning condition, the
display will flash "Warn" in the lower right corner of
all of the status screens shown in section 4.1. If the
current screen is one of the status screens, the LED
on the WARNING key will be flashing. Press the
WARNING key for additional information. Refer to
Table 33 on next page for an overview of the possible
warnings and their respective causes. If more than
four warnings exist simultaneously, press NEXT
SCREEN or PREV. SCREEN to view the remaining
warnings.
Press CLEAR to return to the previous screen.
4.7 Log Selection
Press the LOG key, while in one of the status screens
shown in section 4.1, to get to the Log Selection
screen shown below.
Log Selection: # 0
1 = Averages
4 = Valve
2 = Totals 5 = Data
3 = Alarm 0 = Exit
Select the log to view, and press ENTER. Press
PREV. SCREEN or NEXT SCREEN to view the neigh-
boring screen shown below.
Log Selection: # 0
6 = Operat.
9 = AutoTune
7 = Power
8 = Service
0 = Exit
HELP HELP/HELP DETAILED DESCRIPTION
SCREEN SCREEN DISPLAY
ALARM
Battery!
Check battery's voltage Check for less then a 3V charge on the battery. Check the battery connection.
and its continuity
AI #1-8 Fail Check wiring, piping, AI failure occurs when signal is less than 2.5mA or greater than 19.8mA for the
polarity, continuity duration of the proof timer.
Table 32: Alarm Messages