Innotech Genesis II Digital Controller (v5) Manuel d'utilisateur télécharger pdf (Page 46)

Genesis II Installation Instructions

Page 46 © Mass Electronics Pty Ltd 2010Edition 2.0 dated 06/12/2013

3-3.2.3 Digital Outputs

Each of the MPCII Mid Points Controller’s eight digital output channels consists of a single-pole,

double-throw (SPDT) relay. The two terminals assigned to each channel represent the associated

relay’s Normally Open (NO) and Common (COM) contacts.

Digital output relay contacts are rated at 24VAC, 2A (to be supplied by a Class 2 Transformer).

Good practice is to use pilot relays for the actual switching functions, particularly when it applies to

inductive loads such as coils, solenoids and motors. This protects the relays of the Digital Output

channel and has the advantage of allowing the pilot relays to be installed adjacent to the controlling

switch-gear.

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

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

the terminals are DO 1(NO/COM) through DO 8(NO/COM).

Refer to Table 3-10 for Digital Output terminal number assignments:

Normally Open (NO) Common (COM)

Terminal Signal Terminal Signal

DO 1 DO 1 NO DO 1 DO 1 COM

DO 2 DO 2 NO DO 2 DO 2 COM

DO 3 DO 3 NO DO 3 DO 3 COM

DO 4 DO 4 NO DO 4 DO 4 COM

DO 5 DO 5 NO DO 5 DO 5 COM

DO 6 DO 6 NO DO 6 DO 6 COM

DO 7 DO 7 NO DO 7 DO 7 COM

DO 8 DO 8 NO DO 8 DO 8 COM

Table 3-10: MPCII Mid Points Controller Digital Output Signal Conditions

1 2 ... 41 42 43 44 45 46 47 48 49 50 51 ... 123 124

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Innotech Genesis II Digital Controller (v5) Manuel d'utilisateur Page 46