Watlow F4T User Manual

Watlow F4T • 191 • Chapter 5 Function Reference
Output 1 Size
Set the proportion of the total power that is controlled by the proportional (vernier) output.
This must greater than each of the other three (Output 2 Size, Output 3 Size and Output 4
Size).
Range: 0 to 99,999
Output 2 Size
Set the proportion of the total power that is switched by on-off output 2.
Range: 0 to 99,999
Output 3 Size
Set the proportion of the total power that is switched by on-off output 3.
Range: 0 to 99,999
Output 4 Size
Set the proportion of the total power that is switched by on-off output 4.
Range: 0 to 99,999
Time Delay
Set minimum amount of time to wait between turning on one on-off output and the next. This
is used to avoid power surges.
Range: 0 to 9,999 seconds
Output Order
Choose the method by which outputs 2, 3 and 4 are sequenced.
Options:
• Linear: turns the on-off outputs on in the same order every time
• Progressive: rotates the order to balance usage and wear on contactors and heaters
Motorized Valve
This function controls the position of a proportional valve without using position feedback.
When power is applied to the controller, the valve is driven closed.
Signals
Direction
Label Type Function
Receiver
IN Analog %
Desired position of the valve where 0% is fully closed and
100% is fully open
Transmitters
CLS Digital On to drive the valve closed
OPN Digital On to drive the valve open
Function
To operate a proportional valve without position feedback, set Function to Motorized Valve.
Valve Travel Time
Set this to the time the valve takes to travel between fully closed and fully open.
Range: 10 to 9,999 seconds

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