Description
Description
The Schneider Electric 140DAO84220C is a high-density discrete AC output module engineered for the Modicon Quantum automation series. This unit features 16 output channels arranged into two independently isolated groups, facilitating the control of 100-240 VAC field devices. The 'C' suffix indicates that this module is factory-fitted with a conformal coating, providing essential protection against harsh industrial elements such as moisture, dust, and corrosive gases. This design enhancement ensures reliable operation in demanding environments like chemical processing, water treatment, and heavy manufacturing, where standard electronics might face accelerated degradation.
Features
- 16 discrete AC output channels organized into two groups of 8 for flexible wiring.
- Conformal coating applied to internal circuitry for enhanced environmental resilience.
- Galvanic isolation of 1780 VAC between field-side outputs and the Quantum backplane.
- Integrated diagnostic LEDs: 16 status indicators, one 'Ready' indicator, and one 'Module Error' indicator.
- Supports a wide operating voltage range from 85 to 264 VAC.
- Optimized for high-current applications with up to 2.0 A per channel at 30 deg C.
Technical Specifications
| Model |
140DAO84220C |
| Number of Outputs |
16 (2 isolated groups of 8) |
| Voltage Range |
85 to 264 VAC (100-240 VAC nominal) |
| Frequency |
47 to 63 Hz |
| Max Current (per channel) |
2.0 A (at 30 deg C) / 1.0 A (at 60 deg C) |
| Max Current (per module) |
16.0 A (at 30 deg C) / 8.0 A (at 60 deg C) |
| Bus Consumption |
250 mA (from backplane) |
| Isolation |
1780 VAC for 60 seconds |
| Power Dissipation |
4.5 W + 1.1 W per Ampere |
| Operating Temperature |
0 to 60 deg C |
Installation Guidelines
- Ensure the Quantum backplane is powered down before inserting or removing the module to prevent electrical arcing or damage to the backplane pins.
- Seat the module firmly into the rack slot and secure the top and bottom screws to ensure proper grounding and mechanical stability.
- Use shielded cables for field wiring to minimize electromagnetic interference (EMI) in high-noise industrial settings.
- Maintain adequate airflow around the Quantum rack to keep the operating temperature within the specified 0 to 60 deg C range.
- Handle the module by the housing; avoid direct contact with the PCB or components to maintain the integrity of the conformal coating and prevent ESD damage.
FAQ
What does the 'C' suffix signify for this model?
The 'C' suffix denotes that the module is conformal coated. This is a protective polymer layer applied to the internal circuit boards to defend against corrosion, humidity, and airborne contaminants, making it suitable for aggressive industrial environments.
Can this module be used in hazardous locations?
Yes, the 140DAO84220C is rated for FM Class 1 Division 2 environments, provided it is installed in accordance with local electrical codes and the specific hazardous location requirements of your facility.
How are the output groups isolated?
The 16 outputs are split into two groups of 8. This architecture allows you to control two separate AC power sources or phases independently while maintaining galvanic isolation from the internal controller backplane.
