Watlow F4T User Manual

Watlow F4T • 129 • Chapter 5 Function Reference
Signals
Direction Label Type Function
Transmitter
CUR Analog
The measured current value with scaling and offset ap-
plied when associated output is on.
S&H Analog
Samples and holds the last valid current reading, this
transmitter will reset on a controller power cycle.
Name
Uniquely identify this FB using up to 20 alphanumeric characters.
Sides
Select which of the current set points trigger the heater error.
Options:
• Both: the measured current is monitored against both the High Set Point and Low Set
Point
• High: the measured current is monitored against only the High Set Point
• Low: the measured current is monitored against only the Low Set Point
• Off: the current is not monitored for a heater error
High Set Point
Set the current value, in amperes that triggers a high heater error.
Range: -99,999 to 99,999
Low Set Point
Set the current value, in amperes that triggers a low heater error.
Range: -99,999 to 99,999
Indicate Reading
Select whether or not the RMS current is displayed.
Options: Yes, No
Input Scaling
Set the current transformer's high range, in amperes.
Range: 0 to 99,999
Heater Offset
Set a value to be added to the measured input value to calibrate the current reading.
Range: -99,999 to 99,999

Watlow F4T Specifications

General

Inputs	Thermocouple, RTD, mA, V
Outputs	Relay, SSR, mA, V
Communication	Ethernet, Modbus RTU
Data Logging	Yes
Certifications	CE, UL, cUL, RoHS
Control Modes	PID, On/Off
Power Supply	100 to 240 VAC
Operating Temperature	0 to 50°C
Enclosure Rating	IP65
Display	4.3 in. (109 mm) color touch panel LCD
Control Loops	Up to 4