Watlow F4T Install & Troubleshooting
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47
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Chapter 6 Appendix
1 Temperature Input
• Thermocouple, grounded or ungrounded sensors
- >20MΩ input impedance
•
Max. of 2KΩ source resistance
•
RTD 2 wire, platinum, 100Ω and 1000Ω @ 32°F (0°C) calibration to DIN curve
(0.00385Ω/Ω/°C)
- Maximum lead resistance 10Ω
1 Digital Input
• Digital input update rate 10Hz
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DC voltage
- Max. input 36V @ 3mA
- Min. high state 3V at 0.25mA
- Max. low state 2V
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Dry contact
- Min. open resistance 10KΩ
- Max. closed resistance 50Ω
- Max. short circuit 13mA
1 Current Transformer Input
• Accepts 0-50mA signal (user programmable range)
• Displayed operating range and resolution can be scaled and are user programmable
•
Current input range: 0 to 50mA ac, 100Ω input impedance
• Response time: 1 second max., accuracy ±1mA typical
• Requires optional current transformer, Watlow part number: 16-0246
Switched DC Output
• Switched dc = 22 to 32V
Î
(dc) @ 30mA per output, 40mA per pair (option CC)
Open Collector Output
• Switched dc/open collector = 32V
Î
(dc) max. @ 100mA max. current sink
Solid-State Relay Output
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Form A, 1A at 50°F (10°C) to 0.5A at 149°F (65°C), 0.5A at 24V
Å
(ac) min., 264V
Å
(ac)
max., opto-isolated, without contact suppression, 20VA pilot duty at 120/240 V
Å
(ac)
Form A Electromechanical Relay Output
• 5A, 24 to 240V
Å
(ac) or 30V
Î
(dc) max., resistive load, 100,000 cycles at rated load, re-
quires a min. load of 20mA at 24V, 125VA pilot duty at 120/240 V
Å
(ac) or 25 VA at 24 V
Å
(ac)
Form C Electromechanical Relay Output
• 5A, 24 to 240V
Å
(ac) or 30V
Î
(dc) max., resistive load, 100,000 cycles at rated load, re-
quires a min. load of 20mA at 24V, 125VA pilot duty at 120/240 V
Å
(ac) or 25 VA at 24 V
Å
(ac)
NO-ARC Relay Output
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Form A, 12A at 122°F (50°C), 85 to 264V
Å
(ac), no V
Î
(dc), resistive load, 2 million cycles
at rated load
Anderson-Bolds ~ 216-360-9800
www.anderson-bolds.com
