Emerson 1C311189G03 controller module spot card

Description

1C31189G03 Number of channels 16

On board auxiliary power supply 42 V minimum

55 V maximum

Propagation delay 7 mSec maximum

Contact bounce rejection

Always rejects contact 1C31189G03 change of state

Always accepts contact change of state

< 3 mSec

> 7 mSec

Closed contact output current 4 mA minimum

8 mA maximum

Diagnostics Internal module operating faults

Ground Fault Detection

Dielectric isolation:

Channel to logic 1000 V AC/DC

Module power 4.56 W typical

4.75 W maximum

Operating 1C31189G03 temperature range 0 to 60°C (32°F to 140°F)

Storage temperature range -40°C to 85°C (-40°F to 185°F)

Humidity (non-condensing) 0 to 95%

The 1C31189G03 following defifinitions apply to the restrictions listed below:

— Rshunt = contact shunt resistance

— Rcontact = resistance associated with a closed contact

— Rreturn = resistance of the common return line

— Rline = resistance of the non-common cable length to and from the contact

— Rwiring = Rcontact + Rline + 16Rreturn

— Rfault = resistance from either line to ground which causes a ground fault

Figure 9-2 shows possible cable resistances that 1C31189G03 affect contact input performance.

The following restrictions apply:

• Under no-ground-fault conditions or if the channel return (low) line has a

ground fault:

— Rshunt across contact must be ≥ 10k ohms to always recognize an open

contact as open.

— Rshunt across contact must be ≥ 50k ohms to maintain the high level contact

wetting voltage.

• If the input connection from a channel has a ground fault with the contact open:

— Rshunt across contact must be ≥ 150k ohms to guarantee ground fault is

detected.

• For a ground fault on the input or return connection to a channel:

— Rfault from either line to ground must be ≤ 5K ohms to guarantee detection

of the ground fault.

• With or without ground fault conditions:

— Rwiring through fifield wiring to contact must by < 100 ohms to always

recognize a closed contact as closed.

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