Automated Logic G4106 Technische instructies - Pagina 8

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Input Ohms

x 10

Ohms

474

x 10

Ohms

607

x 10

Ohms

910

x 10

Ohms

1210

x 10

Ohms

1540

x 10

Ohms

1860

x 10

Ohms

2150

x 10

Ohms

2360

x 10

Ohms

2400

x 10

Ohms

32767

x 10

Ohms

Figure 8: Example Custom Table

for a Sample Slidepot

(Tested Resistance Entered on the Left)

Digital Outputs

The G4106 provides four digital outputs which are wired

as shown as shown in Figures 5 and 6. These outputs are

described as follows: 24 VAC or VDC maximum, each

configurable as dry contact and as normally open or

normally closed.

Contact Rating: 3 Amp maximum

Procedure

Turn the G4106's power switch OFF.

Terminate the output wiring to the right termination

strip as shown in Figures 5 and 6.

NOTE: Pilot relays should NOT be powered from

the same transformer which powers the GX boards.

Turn the G4106's power switch ON.

Manual Operation

By setting the HOA switches (see Figure 9), each digital

output can be placed in ON, OFF, or AUTO mode. The

position of the HOA switches may be monitored through

channels 81-88. Channel 81 corresponds to channel 11,

channel 82 corresponds to channel 12, etc. A status of

OFF on these channels indicates the switch is set to AUTO

mode. A status of ON indicates the switch is set to either

ON or OFF mode.

Rev (29-AUG-97) • Module Driver v4.7

Input Value

-1.00

-0.75

-0.50

-0.25

0.00

0.25

0.50

0.75

1.00

Analog Outputs

The G4106 provides six analog outputs. These outputs

are described as follows.

Voltage Mode (0-10 VDC): 1k Ohm minimum load

impedance.

Current Mode (4-20 mA):

While the G4106's analog outputs are designed to output

voltage, it is possible to use these outputs to drive current

mode devices. To do this, wire a 1/2 Watt resistor in series

with the resistive load, as shown in Figures 5 and 6. The

value of the series resistor is determined as follows:

NOTE: If your load resistance is greater than 500 ohms,

your full scale output will be less than 20 mA.

Example: We want to drive a 100 Ohm resistive load

with a 0-20 mA signal. To find the value of the series

resistor, subtract the load resistance from 500 Ohms:

This example is shown in Figures 5 and 6.

Procedure

Figure 9: G4106's HOA Switch

= 500 Ohms - R

SERIES

= 500 Ohms - R

SERIES

LOAD

= 500 Ohms - 100 Ohms = 400 Ohms

SERIES

Turn the G4106's power switch OFF.

Terminate the output wiring to the right termination

strip as shown in Figure 3.

Turn the G4106's power switch ON.

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