GE Fanuc RX3i PacSystem IC694ALG390 2通道模拟输出模块说明书_

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2024年7月14日发(作者：)

GE Fanuc IC694ALG390

/automation/ge-fanuc/rx3i-pacsystem/IC694ALG390

Rx3i PacSystem

Analogue Output module IC694A IC694AL IC694ALG

919-535-3180

*******************

10

Analog Output Module, 2 Channel Voltage: IC694ALG390

MODULE 0K

The 2–Channel Analog Voltage Output module, IC694ALG390, has

two output channels, each capable of converting 13 bits of binary

(digital) data to an analog output signal for field devices. The Analog

Voltage Output module provides outputs in the range of -10 volts to

+10 volts. Both channels are updated on every scan.

The module’s outputs can be set up to either Default to 0 volts or

Hold–Last–State if the CPU goes to the Stop mode or Reset.

Selection of the output default state is made by a jumper on the

module. If the jumper is not installed, the outputs Hold Last State.

This module can be installed in any I/O slot in an RX3i system.

IC694ALG390

Q1

Q2

Isolated +24 VDC Power

If the module is located in an RX3i Universal Backplane, an external

source of Isolated +24 VDC is required to provide power for the

module. The external source can be connected via the TB1

connector on the left side of the backplane or directly on the module’s

terminal block.

If this module is located in an Expansion Backplane, its primary power

source can be either the Isolated +24 VDC from the backplane power

supply or an external Isolated +24 VDC power supply connected to

the module’s terminal block. If the external source is set between

27.5-30 VDC, it takes over the module’s load from the Isolated 24

VDC system supply. Note that an external source should be used if it

is desired to maintain hold last state operation during a loss of

backplane power.

LED

The Module OK LED is ON when the module’s power supply is

operating.

10-2 PACSystems™ RX3i System Manual – October 2005 GFK-2314C

10

Specifications: ALG390

Voltage Range

Calibration

Supply Voltage (nominal)

External Supply Voltage Range

External Supply Voltage Ripple

Update Rate

Resolution

Absolute Accuracy *

Offset

Output Loading (maximum)

Output Load Capacitance

Isolation, Field to Backplane

(optical) and to frame ground

Internal Power Consumption

-10 to +10 volts

Factory calibrated to 2.5 mV per count

+24 VDC, from isolated +24 VDC on backplane or user-

supplied voltage source, and +5 VDC from backplane

18 VDC to 30 VDC

10%

Approximately 5 milliseconds (both channels) Update rate is

application dependent.

2.5 mV (1 LSB = 2.5 mV)

+/-5 mV at 25°C (77°F)

1 mV maximum, 0 to 60°C (32° to 140°F)

5 mA (2 K ohms minimum resistance)

2000 pico farads, maximum

250 VAC continuous; 1500 VAC for 1 minute

32 mA from +5 VDC supply

120 mA from +24 VDC supply (isolated backplane or user

supply)

Refer to Appendix A for product standards and general specifications.

* In the presence of severe RF interference (IEC 801–3, 10 V/m), accuracy may be degraded to

±

50 mV.

GFK-2314C Chapter 10 Analog Output Modules 10-3

10

Data Format: ALG390

Module data is stored by the PLC CPU in 16–bit 2’s complement format:

MSB LSB

+/- 10 9 8 7 6 5 4 3 2 1 0 X X X X

Resolution of the converted signal is 12 bits binary plus sign, which is effectively 13 bits (1 part

in 8192). The module scales the digital data to create an output voltage for the output:

D/A Bits versus Voltage Outputs

4000

D/A

BITS

0

(decimal)

4000

10 0

VOLTAGE (V)

10

Scaling of the output is shown below.

32000

Units

0

(decimal)

32000

100

VOLTAGE (V)

10

10-4 PACSystems™ RX3i System Manual – October 2005 GFK-2314C

10

Field Wiring: ALG390

Terminals Field Wiring

Terminal Connection

1 No connection

2 No connection

3 Output 1

4 Output 2

5

6

7

8

Output 1 Common

Output 2 Common

Shield termination point for output 1

Shield termination point for output 2

1

3

5

7

9

11

13

15

17

19

NC

NC

2

Q1

4

COM

Q2

COM

6

GND

*

GND

8

*

NC

NC

10

DEF0

NC

12

*

14

NC

NC

NC

16

+

*

18

24V

-

NC

20

9 No connection

10 No connection

11 - 13

12

13

Output default selection jumper

No connection

Output default selection jumper

14 No connection

15 No connection

16 No connection

17

19

External +24 VDC Power Supply +

External +24 VDC Power Supply -

18 No connection

20 No connection

*Optional Connections

To minimize capacitive loading and noise, all field connections should be wired using a good

grade of twisted, shielded instrumentation cable. The shields should be connected to GND on

the user terminal connector block. The GND connection provides access to the backplane

(frame ground) resulting in superior rejection of noise caused by any shield drain currents.

DEF0 is the optional Output Default Jumper. It determines the operation of both outputs when

the CPU is in Stop or Reset mode. The jumper should be installed if outputs should default to 0.

The jumper should not be installed if outputs should hold their last state (the last valid

commanded value received from the CPU).

An optional external +24 VDC supply can be installed as shown.

GFK-2314C Chapter 10 Analog Output Modules 10-5

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