Watlow F4T Install & Troubleshooting
•
16
•
Chapter 2 Install and Wire
Input Connections
(cont .)
Digital Input
FMLA - YEBA - A _ _ _
B2
D2
•
Update rate 10Hz
• Voltage
- Max. input 36V at 3mA
- Input inactive when =<
2V
- Input active when =>
3V at 0.25mA
• Dry contact
- Input inactive when =>
500Ω
- Input active when =<
100Ω
- Max. short circuit 13mA
Voltage Input
Vdc
common
B2
D2
Dry Contact
common
B2
D2
Vdc
Digital Input (High Density)
FMHA - CAAA - A _ _ _
Common
DC Input
B1
D1
D2
D3
D4
D5
D6
Z1
Supply
DC Input
DC Input
DC Input
DC Input
DC Input
Internal
• Voltage
- Max. input 36V at 3mA
- Input inactive when =<
2V
- Input active when => 3V
at 0.25mA
• Dry contact
- Input inactive when =>
500Ω
- Input active when =<
100Ω
- Max. short circuit 13mA
Voltage Input
Dry Contact
common
D_
Z_
Vdc
Current Transformer
FMMA - C _ _ A - A _ _ _
T1
S1
•
Input range is 0 to 50 mA (ac).
• Current transformer part number: 16-0246
•
100 Ω input impedance
• Response time: 1 second maximum
•
Ac/-1 mA typical
common
Vdc
D
_
B1