Watlow CLS200 - Manual (Page 75)

CLS200 Series User’s Guide Chapter 3: Using the CLS200
Doc.# 0600-3050-2000 Watlow Anafaze 59
Table 3.3 shows the symbols used in each form of the alarm
display.
Table 3.3 Alarm Type and Symbols
Acknowledging an Alarm
Press ALARM ACK to acknowledge the alarm. If there are
other loops with alarm conditions, the Alarm display
switches to the next loop in alarm. Acknowledge all alarms
to clear the global alarm digital output (the keypad and dis-
play won't work for anything else until you acknowledge
each alarm). The alarm symbols are displayed as long as
the alarm condition is valid.
Alarm
Code
Bar Graph
Symbol
Alarm
Message
Alarm
Description
FS F T/C BREAK
Failed Sensor: Break detected
in thermocouple circuit.
RO F RTD OPEN
RTD Open: Break detected in
RTD circuit.
RS F RTD SHORTED
RTD Short: Short detected in
RTD circuit.
RT F REVERSED TC
Reversed Thermocouple:
Reversed polarity detected in
thermocouple circuit.
ST F T/C SHORTED
Shorted Thermocouple: Short
detected in thermocouple cir-
cuit.
HP > No message
High Process Alarm: Process
variable has risen above the
set limit.
HD >
No message
High Deviation Alarm: Process
variable has risen above the
setpoint plus the deviation
alarm value.
LP < No message
Low Process Alarm:
Process variable has dropped
below the set limit.
LD < No message
Low Deviation Alarm: Process
variable has dropped below the
setpoint minus the deviation
alarm value.
AW * No message
Ambient Warning: Controller's
ambient temperature has
exceeded operating limits by
less than 5° C.