Automated Logic M4106nx Технічні інструкції - Сторінка 7

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Digital Outputs

The M4106nx module has four digital outputs

that can be connected to a maximum of 24

Volts AC/DC. Each output is a dry contact

(rated at 3A, 24VAC maximum) that can be

configured as normally open or normally

closed, according to the jumper setting.

Be sure the M4106nx's power is off before

wiring any inputs or outputs. Connect the

output wiring to the screw terminals on the

module as shown in Figure 9.

N / C N / O

Figure 9. Digital Output Wiring

NOTE

Do not power pilot relays from the

same transformer that powers the M4106nx.

To verify each output's operation, lock the

output to a known condition using the

Function Block's Parameter page, then make

sure the equipment actually operates as

specified.

Each digital output can be placed in Manual

or Auto mode by setting the HOA switches

(see Figure 1 on page 2 for the switches'

location). Table 3 shows the status of the

digital output based on the output's

configuration and the HOA switch position.

You can monitor the status of the HOA

switches through SuperVision by assigning

each switch a digital input in the FB using

channel numbers 81 through 84. Channel 81

corresponds to HOA switch number one;

Revised 3/29/00 • M4106nx

Table 3. HOA Switch Positions

channel 82 corresponds to HOA switch two,

and so on.

An off status on these channels means the

HOA switch is in Auto mode. An on status

D R Y

C O N T A C T

means the HOA switch is in Manual mode.

2 4 V A C

Analog Outputs

The M4106nx module has six analog outputs

that support voltage devices in the 0-10VDC

range. The device that is being controlled

must have a minimum of 500 Ohms

resistance measured from its input to ground

and must share the same ground as the

module.

Although the M4106nx's Analog Outputs

were not designed to output current, it is

possible to use these outputs for current

mode devices. To drive a 20mA device from

the module's analog output, the total

resistance of the load must be 500 Ohms. If

necessary, wire a 1/2 watt resistor in series

with the 20mA device as shown in Figure 10

on page 8.

For example, to drive a 20mA device that has

250 Ohms of resistance, wire a 250 Ohm

resistor in series with the 20mA device (250

Ohms + 250 Ohms = 500 Ohms total

resistance).

Normally

open

contacts

output

closed

Normally

closed

contacts

output

open

Status page

result (use

channel

numbers

81- 84)

Off

Auto

determined

contacts

by FB

open

programming

determined

contacts

by FB

closed

programming

OFF