- The external positive supply feeds the load.
- IC670MDL742 completes the circuit by switching the output toward DC negative.
- The BIU receives field-power and fuse diagnostics for the common output group.
GE Fanuc IC670MDL742 5/12/24 VDC Negative Output Module
A sixteen-point sinking output module for 5, 12 or 24 VDC load circuits.
Negative-logic DC output module16 in one group4.75–5.25 or 10.5–28.5 VDC4.5–28.25 VDC
Product identity
Model Profile
GE Fanuc IC670MDL742 is a sixteen-point negative-logic output module for Field Control. Its FET outputs switch loads toward the negative side of an external 5, 12 or 24 VDC supply, providing a current-sinking interface for compatible field devices.
All outputs form one group protected by a common 10 A slow-acting fuse. The module monitors field power; loss of adequate user voltage or a blown fuse is reflected by the power indication and reported to the bus interface unit.
Current capability depends on the supply range. At 5 V operation the output value is 25 mA per point, while 10.5–28.5 V operation permits up to 0.5 A per point, with an 8 A module total.
Model values
Product Data
- Product type
- Negative-logic DC output module
- Output points
- 16 in one group
- User supply
- 4.75–5.25 or 10.5–28.5 VDC
- Output range
- 4.5–28.25 VDC
- 5 V point current
- 25 mA maximum
- 10.5–28.5 V point current
- 0.5 A maximum
- Module total
- 8 A maximum
- Inrush
- 2 A for 100 ms
- Response time
- 200 µs maximum on/off at 0.5 A
- Protection
- Common 10 A, 250 V slow-acting fuse
- BIU current draw
- 111 mA maximum
Hardware function
Sinking Output Path
Selection detail
Voltage-Dependent Rating
- Do not apply the 0.5 A value to 5 V operation; the 5 V limit is 25 mA per point.
- Keep the full module below 8 A at higher voltage.
- Confirm load polarity because a sourcing output module is not a wiring-equivalent replacement.
Buyer decisions
Technical Questions
Can IC670MDL742 provide 0.5 A per output at 5 VDC?
No. At 5 V operation the maximum is 25 mA per point; 0.5 A applies to the 10.5–28.5 V range.
What happens if the common fuse opens on IC670MDL742?
The output group loses field power, the PWR indication changes and the BIU receives a blown-fuse diagnostic.
Is IC670MDL742 a sourcing output?
No. It is a negative-logic current-sinking output module.
Can IC670MDL742 use 24 VDC loads?
Yes, within the 10.5–28.5 V range and the point/module current limits.
Why should the full load schedule be supplied with an IC670MDL742 enquiry?
The correct selection depends on voltage, per-point current, inrush and the 8 A module total.
What is the minimum load current for IC670MDL742?
The specified minimum is 1 mA per point.
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