Watlow CPC400 - Manual (Page 138)

Chapter 5: Menu and Parameter Reference CPC400 Series User’s Guide
124 Watlow Anafaze Doc. 0600-2900-2000
Default: none (0)
Modbus Address (Loops 1 to 9): 40477 to 40485
Parameter Number: 28
LogicPro Driver: Database
LogicPro Address (Loops 1 to 9): 28.1 to 28.9
Alarm Low Set Point
Enter the set point at which the low alarm activates. The
low alarm activates if the process variable drops below this
value. For more information, see Process Alarms on page
65.
Values: For a thermocouple or RTD input, any value with-
in the input range (see Table 5.7 on page 104). For a pro-
cess or pulse input, any value between the Input range low
and Input range high parameters.
Default: 0
Modbus Address (Loops 1 to 9): 40324 to 40332
Parameter Number: 19
LogicPro Driver: Database
LogicPro Address (Loops 1 to 9): 19.1 to 19.9
Decimal Placement for Modbus or LogicPro: See Dec-
imal Placement for Numeric Values on page 80.
Alarm Low Function
Choose whether the alarm functions as an alarm or as a
boost output, or disable the alarm.
Values: See Table 5.16 on page 122.
Default: off
Modbus and LogicPro: See Alarm Acknowledge on page
132 and Alarm Function on page 133.
Alarm Low Output
Choose a digital output to activate when the low alarm oc-
curs. You cannot choose an output that is in use for closed-
loop control or for the Serial DAC clock.
Values: none (0) or output 1 to 34 (1 to 34). Values in pa-
rentheses are for serial communications and LogicPro.
Default: none (0)
Modbus Address (Loops 1 to 9): 40443 to 40451
Parameter Number: 26
LogicPro Driver: Database
LogicPro Address (Loops 1 to 9): 26.1 to 26.9
Alarm Hysteresis
Enter the amount by which the process variable must re-
turn within the alarm limit before a high alarm, low alarm
or deviation alarm clears. Use the alarm hysteresis to pre-
l01 Alarm low r
SP b 0 ˚F
l01 Alarm low r
func boff
l01 Alarm low r
outputbnone
l01 Alarm hys- r
teresisb 2 ˚F