Cooper S280-79-10 Install And Operation Instructions page 25

SAFETY
FOR LIFE
TABLE 1
DIF Input Ratings
Minimum Detection Level: . . . . . . . . . . . . . . . . . . . . . . . . 8 Vac
Maximum Operating Voltage: . . . . . . . . . . . . . . . . . . . . . 135 Vac
Input Impedance: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 k minimum (inputs are current limited)
Maximum Input Loading: . . . . . . . . . . . . . . . . . . . . . . . . . 2 mA per input
Maximum Leakage Rejection: . . . . . . . . . . . . . . . . . . . . . 1 mA
Maximum Pickup Time: . . . . . . . . . . . . . . . . . . . . . . . . . . 10 msec (does not count control response time)
Minimum Input Pulse Time: . . . . . . . . . . . . . . . . . . . . . . . 100 msec
Minimum Transition Time between Pulse Inputs: . . . . . . 200 msec
Input Protection: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Shunting type using MOVs and capacitors.
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 Pickup-Release Time: . . 3 msec (does not count control response time)
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.
(50 or 60Hz)
(50 or 60Hz)
Opto Isolation from input to system.
S280-79-10
10 Vdc
175 Vdc
25