The Yokogawa NFDV551-P10/CCC01, also cataloged as the NFDV551 Digital Output Module, operates as a dedicated hardware component for discrete load switching and actuator drive signaling within CENTUM VP and ProSafe-RS control networks.
| Code Suffix | Option / Configuration | Technical Description |
|---|---|---|
| NFDV551 | Base Model | Digital Output Module for field actuator drive execution |
| -P | Power / Bus Type | Standard internal backplane power distribution module |
| 1 | System Variant | Single or redundant execution circuit configuration |
| 0 | Reserved / Basic | Standard structural base profile |
| /CCC01 | Option Code | MIL connector cover assembly providing mechanical strain relief |
| Parameter | Specification |
|---|---|
| Model | NFDV551-P10/CCC01 |
| Brand | Yokogawa |
| Origin | Japan |
| Weight | 0.4 kg |
| Dimensions | 130 mm x 107.5 mm x 32.8 mm |
| Operating Temp | -10 deg C to 60 deg C |
| Power Consumption | 0.3 A at 24 VDC backplane supply |
| Output Capacity | 32 channels (current sink NPN configuration) |
| Rated Output Voltage | 24 VDC |
| Operating Voltage Range | 20.4 VDC to 26.4 VDC |
| Maximum Output Current | 0.5 A per channel |
| On-State Voltage Drop | 2 VDC maximum |
| Off-State Leakage Current | 0.1 mA maximum |
| Response Time | 3 ms maximum |
| Storage Temp | -40 deg C to 70 deg C |
| Operating Humidity | 5% to 95% RH (non-condensing) |
The NFDV551-P10/CCC01 incorporates channel-to-channel and channel-to-ground galvanic isolation barriers to isolate discrete logic control circuits from external field surges and high-voltage transients. Integrating 32 transistor output channels into a compact footprint, the module handles current sinking operations across 24 VDC control loops while managing individual channel diagnostics. Upon detection of upstream backplane network communications failure, internal registers force channels into user-configured fallback states (HOLD, OFF, or NO). Field side connections are shielded using the /CCC01 MIL connector cover assembly, preventing cable vibration stress and securing field wiring terminations during continuous process operations.
Q: How does the NFDV551-P10/CCC01 handle output states during a loss of controller backplane communication?
A: The module executes pre-programmed fallback modes (HOLD, OFF, or NO) applied via hardware register configuration to drive outputs into pre-determined safe conditions without relying on active backplane processor updates.
Q: What role does the /CCC01 suffix play in the physical installation of the module?
A: The /CCC01 option designates a MIL connector cover assembly attached to the front terminal assembly, providing mechanical strain relief and environmental shielding for high-density field wiring looms.
Q: Does the module require external field power to drive connected actuators?
A: Yes. While internal logic is powered by the 24 VDC backplane bus (drawing approximately 0.3 A), field output loops require an independent external 24 VDC field power source to drive load currents through the NPN current sinking channels.
Mount the NFDV551-P10/CCC01 vertically into the appropriate slot of the Yokogawa I/O node unit, ensuring the card edge connector snaps securely into the backplane. Route all 32-channel signal conductors through the designated /CCC01 MIL connector cable strain relief housing to eliminate mechanical stress on the interface pins. Maintain a continuous protective earth ground wire routed directly from the node chassis grounding stud to the main cabinet ground bar. Ensure field wiring maintains proper polarity for current sink (NPN) operation, and confirm external 24 VDC power supply voltage remains strictly within the specified 20.4 VDC to 26.4 VDC operational window.
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