IC694MDL740A GE Fanuc PACSystems RX3i Discrete Output Module
Manufacturer: GE Fanuc
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Part Number: IC694MDL740A
Condition：New with Original Package
Product Type: Digital Output Modules
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Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
GE IC694MDL740A PACSystems RX3i Output Module
The GE IC694MDL740A, also cataloged as the IC694MDL740 Discrete Output Module, operates as a dedicated hardware component for 12/24 VDC output signal switching and field load control within PACSystems RX3i platforms.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | IC694MDL740A |
| Brand | GE Fanuc |
| Origin | China |
| Weight | 0.48 kg |
| Dimensions | Standard RX3i module footprint |
| Operating Temp | 0 to 60 deg C |
| Power Consumption | 110 mA at 5 VDC backplane bus |
| Output Channels | 16 points (2 groups of 8 channels) |
| Output Voltage Range | 12 to 24 VDC (+20%, -15%) |
| Output Current | 0.5 A per point (2 A maximum per group) |
| Output Transistor Polarity | Positive logic (sourcing) |
| Isolation Rating | 250 VAC continuous field-to-backplane |
| Module Slot Occupation | 1 backplane slot |
| Status Indicators | Channel LED status displays |
Backplane Bus Communication Velocity and Firmware Compatibility
The discrete output card routes command bits directly across the backplane interface to drive field transistor outputs. High backplane bus communication velocity guarantees deterministic update rates across all 16 channels during execution cycles. Strict firmware flash compatibility controls safeguard signal execution when integrating the output card alongside existing processing and communication modules within the PACSystems RX3i rack frame.
Frequently Asked Questions
Q: What power source feeds the output channels on the IC694MDL740A?
A: The module requires an external 12/24 VDC field power supply connected to the terminal block to energize output loads, as internal backplane 5 VDC power drives only the logic components.
Q: How does positive logic wiring affect physical field load connections?
A: Positive logic switches the positive potential (+VDC) from the external supply to the output terminal, requiring field loads to ground their return leg at the DC power supply common.
Q: Can maintenance staff perform hot-swapping on this module while the backplane is powered?
A: You must isolate power to the backplane rack before inserting or extracting the module. Live insertion risks arcing at the backplane pins and can induce unexpected switching states in field loads.
Field Installation Guidelines
Align the module side guide rails with the target RX3i backplane slot, pressing firmly until the top clip latches onto the rack chassis. Ground the backplane housing to the main panel protective earth (PE) busbar to bleed off transient spikes. Route 12/24 VDC field output wiring in separate cable channels from low-voltage data cables to prevent capacitive coupling. Verify that external field load currents remain below 0.5 A per channel and 2 A total per group to avoid overcurrent degradation of the output transistors.