!
SAFETY FOR LIFE
TABLE 1
DIF Input Ratings
. . . . . . .Minimum Detection Level: . . . . . . . . . . . . . . . . . | 8 Vac | (50 or 60Hz) | 10 Vdc |
Maximum Operating Voltage: . . . . . . . . . . . . . . . . . . . . . | 135 Vac | (50 or 60Hz) | 175 Vdc |
Input Impedance: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 10 k minimum (inputs are current limited) | ||
Maximum Input Loading: . . . . . . . . . . . . . . . . . . . . . . . . . | 2 mA per input |
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Maximum Leakage Rejection: . . . . . . . . . . . . . . . . . . . . . | 1 mA |
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Maximum Pickup Time: . . . . . . . . . . . . . . . . . . . . . . . . . . | 10 msec (does not count control response time) | ||
Minimum Input Pulse Time: . . . . . . . . . . . . . . . . . . . . . . . | 100 msec |
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Minimum Transition Time between Pulse Inputs: . . . . . . | 200 msec |
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Input Protection: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | Shunting type using MOVs and capacitors. | ||
| Opto Isolation from input to system. | ||
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IMPORTANT: Each DIF contains a small, isolated current source for use with external dry contacts. This supply is intended for use with the DIF inputs only and must not be used for powering external circuits. This is considered a dry contact input for customer connection.
TABLE 2
Whetting Voltage Source
(Supplied by Internal Voltage Source of DIF Module)
Voltage Level: . . . . . 28 Vdc (nominal)
Output Current: . . . . 30 mA maximum
TABLE 3
DIF Output Ratings
Maximum Switching Voltage: . . . . . 135 Vac 110 Vdc
Maximum Switching Loading: . . . . . 600 mA
Maximum
Input Protection: . . . . . . . . . . . . . . . Shunting type using MOVs and capacitors
Standard and UDP Controls
Standard and UDP Form 5 control DIF inputs and outputs are described in the following pages.
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