YOKOGAWA ADV551-P50 is a
32-channel isolated digital output module designed for industrial process control systems. It belongs to Yokogawa’s
ADV551 series, which is optimized for high-reliability signal transmission in distributed control systems (DCS) such as
CENTUM VP. The
-P50 suffix denotes
pulse width output (PWM) and
time-proportional control functionality, with no explosion-proof certification.
The ADV551-P50 serves as a critical component for converting digital control signals into discrete on/off outputs (24V DC) to drive solenoid valves, relays, and other industrial actuators. Key functionalities include:
High-Density Digital Output
- 32 Isolated Channels: Supports 32-channel galvanic isolation to prevent ground loops and electromagnetic interference (EMI), ensuring stable operation in noisy industrial environments.
- 24V DC Output: Compatible with standard industrial solenoid valves and relays, with a maximum load current of 100 mA/channel at 26.4V DC
Advanced Control Modes
- Pulse Width Modulation (PWM): Enables precise control of motor speed or valve positioning by varying pulse widths (8 ms to 7200 s).
- Time-Proportional Output: Adjusts duty cycles for proportional control of heating elements or variable-speed drives.
Flexible Integration
- Modular Design: Installs in Yokogawa’s CENTUM VP DCS racks, supporting mixed I/O configurations with other modules (e.g., analog input/output modules).
- Terminal Block Options: Configurable with pressure-clamp terminals (ATD5S-10) or dual-pressure terminals (ATD5D-10) for surge protection.
Environmental Robustness
- Wide Temperature Range: Operates reliably from -20°C to 60°C, suitable for harsh industrial environments.
- ISA G3 Compliance: Resistant to corrosive gases and dust, ensuring long-term stability in petrochemical or offshore applications.
| Parameter | Typical Value |
|---|
| Output Signal | 24V DC (isolated, 32 channels) |
| Control Modes | PWM, time-proportional, status output |
| Isolation | 2 kV AC (channel-to-system), 500V AC (channel-to-channel) |
| Response Time | ≤3 ms (status output), ≤10 ms (mixed PWM/status) |
| Pulse Width Resolution | 8 ms (with ±1 ms delay tolerance) |
| Terminal Type | Pressure-clamp terminal block (ATD5S-10) or dual-pressure terminal block (ATD5D-10) |
| Dimensions | 102 mm × 38 mm × 102 mm |
| Weight | ~0.3 kg |
| Operating Temperature | -20°C to 60°C |
The ADV551-P50 is widely deployed in industries requiring precise digital control and high availability:
Process Automation
- Chemical Plants: Controls batch reactor agitators and valve sequences.
- Oil & Gas: Manages wellhead solenoid valves and pump start/stop signals.
Energy Management
- Power Generation: Actuates steam turbine bypass valves and generator circuit breakers.
- Renewables: Controls solar tracker actuators and wind turbine yaw systems.
Manufacturing
- Pharmaceuticals: Regulates sterilization chamber door locks and filling machine pistons.
- Food & Beverage: Controls conveyor belt drives and packaging machinery.
Building Automation
- HVAC Systems: Modulates damper actuators and chilled water valve solenoids.
- Fire Safety: Triggers smoke extraction fans and emergency lighting relays.
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customer service +86 18020721390 
