IC670ALG330 8-Point Analog Current-Source Output Module

This IC670ALG330 module provides eight analog output channels. The IC670ALG330 belongs to the GE Fanuc Field Control series. It uses a single-ended wiring configuration for all channels. This module transmits data by converting digital values to current signals. It receives output data from a Bus Interface Unit (BIU) in engineering units.

Technical Specifications

The IC670ALG330 features eight single-ended analog output channels. Each channel delivers a 0-20 mA current output signal. The output signal ranges from 0.0 to 20.48 mA maximum. A built-in Digital to Analog Converter (DAC) handles the signal conversion. Conversion resolution reaches 16 bits for precise control. Digital resolution measures 0.3125 µA per count at maximum resolution. Magnitude data size is 14 bits.

Output Specifications:

• Number of Channels: 8 current source outputs

• Output Signal (Nominal): 0-20 mA

• Output Signal (Range): 0.0 to 20.48 mA

• Conversion Resolution: 16 bits

• Digital Resolution: 0.3125 µA per count

• Magnitude Data Size: 14 bits

• Linearity: 1 LSB resolution value

• Channel Update Time: 1.5 ms typical

Load Specifications:

• Output Load Capacitance: 2000 pF maximum

• Output Load Inductance: 0.5 H maximum

• Open Wire Output Current Threshold: 1.0 mA minimum, 3.5 mA maximum

Power Requirements:

• External Power Supply: 18 to 30 VDC (24 VDC typical)

• Maximum Ripple: 10%

• Current from External Supply: 250 mA maximum (all 8 outputs at 20 mA)

• Current from BIU Power Supply: 85 mA maximum

Isolation and Environment:

• Isolation Rating: 1500 VAC for 1 minute

• Continuous Isolation: 250 VAC

• Operating Temperature: 0 to 55 °C

• LED Indicator: 1 LED (power/status/fault)

Status LED Meaning:

• Steady Glow: Module powered on and operating properly

• Intermittent Flash: Module fault detected

• Not Illuminated: Powered off or fatal error occurred

The IC670ALG330 scales data according to user parameter settings. Users can configure scaling parameters and output levels for each channel. The module stores all calibration data in flash memory. Users can reset the module to factory calibration settings. The module supports bit data types and word data types.

Fault Handling Features:
The output channels can be configured to hold last state during:

• BIU reset event

• No output data received after timeout period

• Backplane power loss

• Module watchdog timer expiration

Lifecycle Status

This product has a Discontinued/Obsolete lifecycle status. The manufacturer no longer produces this model. Please contact us for availability of surplus or refurbished units.

Installation Guide

Follow these steps to install the IC670ALG330 properly. Power down the Field Control system before installation. Insert the module into the appropriate I/O slot in the base. Ensure the module seats firmly into the backplane connector. Connect an external power supply between 18 and 30 VDC. Use 24 VDC typical for best performance. Keep power supply ripple below 10% maximum. Wire each output channel to your field device. Use proper shielding for analog current loops. Connect the common return path for single-ended wiring. Configure the scaling parameters using your programming software. Set the output behavior for fault conditions. Choose between hold last state or other options. Power up the BIU and then the external supply. Verify the LED shows steady glow for normal operation. Test each channel by commanding output values from 0 to 20 mA.

What’s in the Box

Please check the package contents upon delivery.

• IC670ALG330 Analog Output Module (1 unit)

• Terminal block connector (1 piece)

• Module labeling sheet (1 piece)

Common FAQs

1. How many output channels does the IC670ALG330 provide?
This module provides eight single-ended analog output channels. Each channel delivers a 0-20 mA current source signal.

2. What is the resolution of this analog output module?
The IC670ALG330 offers 16-bit conversion resolution. The digital resolution is 0.3125 µA per count at maximum resolution.

3. What power supply does this module need?
The module requires an external power supply from 18 to 30 VDC. Typical operation uses 24 VDC. Maximum ripple should stay below 10%.

4. Does this module detect open wire conditions?
Yes, the IC670ALG330 can report open wire errors. The open wire detection threshold ranges from 1.0 mA minimum to 3.5 mA maximum.

5. What happens to outputs during a fault condition?
>>>>>>>>>>lass=”yoast-text-mark” />>You can configure each channel to hold its last state. This applies during BIU reset, timeout, backplane power loss, or watchdog expiration. Note that resolution reduces from 16 bits to 14 bits during backplane power loss.