Innotech Genesis II Digital Controller (v5) Manuel d'utilisateur télécharger pdf (Page 45)

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Genesis II Installation Instructions

3-3.2.2 Digital Inputs

The MPCII Mid Points Controller’s four Digital Input channels (Terminals 4 to 11) provide the capability

of directly interfacing to digital input signal sources such as pushbutton switches and relay contacts.

Because each Digital Input channel is isolated, the power source for the signal must be external to the

controller. This signal source can be AC or DC. If the source is AC, it can be provided by the auxiliary

transformer.

Digital input signal power requirements are one of the following:

• 24 VAC ±15%

• 12 VDC ±15%

There are two terminals associated with each Digital Input channel. If an external DC signal source

is used, the even-numbered (le) terminal must be wired as positive and the odd-numbered (right)

terminal as negative.

The MPCII Mid Points Controller's Digital Input terminals are not assigned numbers; however, each

Digital Input terminal is clearly labelled as to its polarity and signal name. Signal names assigned to

the terminals are DI 1+/- through DI 4+/-.

Refer to Table 3-9 for the MPCII Mid Points Controller's Digital Input Signal Conditions:

Positive Side Negative Side

Terminal Signal Terminal Signal

DI 1 DI 1+ DI 1 DI 1-

DI 2 DI 2+ DI 2 DI 2-

DI 3 DI 3+ DI 3 DI 3-

DI 4 DI 4+ DI 4 DI 4-

Table 3-9: MPCII Mid Points Controller Digital Input Signal Conditions

1 2 ... 40 41 42 43 44 45 46 47 48 49 50 ... 123 124

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Innotech Genesis II Digital Controller (v5) Manuel d'utilisateur Page 45