621-1180
6211180

Input Module


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32-Point Discrete Input Module

32-point 115 Vac and 24 Vdc Sink Discrete Input module. A separate connection to L1 is needed when the model 621-1180 module is used in an ungrounded ac control circuit. Input operation is unaffected by this connection. However, for ungrounded ac systems using ground fault detection circuitry, this connection balances the system and prevents erroneous ground fault indications. 621-1180 Specifications:

POINT INPUTS 32
POINTS PER COMMON 16 (L2)
NOMINAL VOLTAGE 115 Vac
VOLTAGE RANGE 80-140 Vac
CURRENT RANGE 4-15 mA (8 mA at 115 Vac typical)
INPUT SURGE
CURRENT LIMIT500 mA per input
SWITCHING LEVEL
Logic 1 75 Vac
Logic 0 43 Vac
ALLOWABLE
LEAKAGE CURRENT1.5 mA
INPUT DELAY
Off to On 2.4 ms to 3 ms, plus 0 to 0.5 cycles
On to Off 24 ms ¦50%
OPERATING CURRENT
+5Vdc _195 mA maximum