Innotech Genesis II Digital Controller (v5) Manuel d'utilisateur télécharger pdf (Page 80)

Genesis II Installation Instructions

Page 80 © Mass Electronics Pty Ltd 2010Edition 2.0 dated 06/12/2013

4-1.2.2 Checking Digital Input Wiring

Digital input wiring to controllers and digital input expansion modules should be checked to ensure

the following conditions:

• The digital signal source voltage is within the correct range. Refer to Table 4-2 for digital input

signal source specifications for the various digital input units.

• The signal polarity is correct for digital input signals with DC sources

• Wiring to the signal actuator (switch, relay contacts, contact points, etc.) is correct

4-1.2.3 - External-Source Digital Inputs contains procedures for checking most Genesis REMs except

for the GENII DI REM Dry Contact Digital Input Module. Whereas most Genesis units use external

source digital input signals, the DI REM signals are dry contact (voltage free) inputs. Procedures for

checking voltage-free digital inputs are contained in 4-1.2.4 - Internal-Source Digital Inputs.

4-1.2.3 External-Source Digital Inputs

The following procedures for checking digital input wiring are specifically for the Genesis II Digital

Controller. However, they also apply to the other units listed in Table 4-2 except for the GENII DI REM.

Refer to the Electrical Installation chapter for digital input terminal numbers for the various Genesis

units.

Figure 4-2 is a schematic representation of a typical Digital Controller installation containing AC- and

DC-powered digital inputs and how the wiring can be checked using a digital voltmeter. Use Figure

4-2 for reference when performing the following procedures:

1. Ensure power to the Digital Controller is turned o.

2. Set the digital voltmeter range to read at least 25 Volts.

3. Connect the voltmeter to the first digital input channel (Terminals 4 and 5 for the Genesis II

Digital Controller). Observe polarity, ensuring the red (+) test lead is connected to the positive

terminal (4) and the black (-) test lead is connected to the negative terminal (5).

4. Ensure the voltmeter reads Zero Volts. If the reading is other than Zero Volts it indicates the

input is driven by Normally Closed contacts or the input is not wired correctly.

Table 4-2: Digital Input Signal Voltages

Unit Signal Voltage

GENII DDC Digital Controller 24VAC/24VDC ±15%

MPCII Mid Point Controller 24VAC/12VDC ±15%

GENII PI REM Pulse Input Module 12 - 24VDC

GENII IDI REM Opto-Isolated Digital Input Module 12 – 24VAC/VDC

GENII DI REM Dry Contact Digital Input Module Not Applicable

GENII MP REM Multipoint Module 24VAC/24VDC ±15%

1 2 ... 75 76 77 78 79 80 81 82 83 84 85 ... 123 124

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Innotech Genesis II Digital Controller (v5) Manuel d'utilisateur Page 80