Honeywell CC-PSV201 | Servo Valve Positioner Module (SVPM)

Function

The CC-PSV201 Servo Valve Positioner Module (SVPM) is a Series C I/O module designed for turbomachinery control applications. It features an onboard PID positioning loop to control a servo valve, accepting LVDT/RVDT/4-20 mA position feedback signals and generating a precise output current to regulate the valve’s position.

The SVPM receives a remote setpoint from a C300-20ms CEE controller, executes an onboard PID loop, and drives the servo valve coil accordingly.

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Notable Features

• Fast Onboard PID Execution: 10 ms loop latency
• Excitation Supply for LVDT: Supports various LVDT configurations
• Configurable LVDT Input: Can accept 4-20 mA analog input signals
• Wide Current Output Range: Supports unidirectional and bidirectional current outputs
• Optional Analog Output: Servo output can be configured as 4-20 mA analog output
• Digital Inputs for Safety: Two digital inputs can drive servo output to a safe value
• Extensive Diagnostics:
  • PV qualification for AI & AO
  • LVDT excitation frequency drift check
  • Internal reference and power supply diagnostics
  • Open wire detection for Servo, LVDT, AI (4-20mA), and DI
  • LVDT core fallout detection
  • Readback current diagnostics for Servo and AO (4-20mA)
• Failsafe Mechanism: Detects abnormal conditions and drives the servo output to a safe value
• Fast Processing:
  • 2.5 ms signal processing for LVDT/RVDT inputs
  • Onboard PID execution
• Digital Dither: Reduces stiction in servo valves with adjustable frequency (25-60 Hz)
• Servo Valve Calibration: Supports position calibration
• Redundancy Support: Compatible with redundant configurations
• Non-Incendive Field Power: Ensures safe operation in hazardous environments

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I/O Interfaces

The CC-PSV201 module supports the following input and output interfaces:

Interface	Channels	Signal Type
LVDT/RVDT/Analog Input	2	3/4/5/6-wire LVDT, 4-20 mA
Digital Input	2	22-28 VDC
Servo/Analog Output	2	Bipolar/unipolar current output, 4-20 mA
PID Control	2	Embedded PID loops

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Technical Specifications

Servo Output

• Output Type:
  • Bipolar current: 10, 20, 40, 80, 160, 320 mA
  • Unipolar current: 50, 300 mA
• Output Channels: 2
• Dither: 0-10% of full scale, 25-60 Hz
• Temperature Drift: 300 ppm/°C
• Linearity: ±0.325%
• Resolution: 16-bit DAC
• Max Resistive Load: As per Honeywell DFS document
• Max Open Circuit Voltage: ±14 V
• Switchover Gap (0 mA Output): ≤15 ms

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LVDT Interface

• Input Type: 3/4/5/6-wire LVDT feedback
• Excitation Voltage: 8 V RMS max, 2.5 – 3.2 KHz
• Frequency Stability: ±5 Hz from set value
• Channels: 2
• Galvanic Isolation: ±500 VDC
• Isolation Technique: Isolation transformer
• A/D Converter Resolution: 16-bit
• Input Impedance: > 25 KΩ (2.5 – 3.2 KHz)
• Input Scan Rate: 25 ms
• Hardware Accuracy: <1%

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Analog Inputs

(AI and LVDT signals are mutually exclusive)

• Input Types: Voltage, Current (2-wire/self-powered transmitters)
• Channels: 2
• Common Mode Voltage: -6 V to +5 V (DC to 60 Hz)
• A/D Converter Resolution: 16-bit
• Input Range: 0-5 V, 1-5 V, 0.4-2 V, 4-20 mA (via 250 Ω)
• Max Normal Mode Input: ±30 V
• Input Impedance: >10 MΩ (powered)
• Max Input Voltage: ±30 V (no damage)
• Input Scan Rate: 5 ms
• Accuracy (@ CMV = 0 V):
  • ±0.075% full scale (23.5°C ±2°C)
  • ±0.15% full scale (0-60°C)

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Analog Outputs

(AO and Servo outputs are mutually exclusive)

• Output Type: 4-20 mA
• Channels: 2
• Output Ripple: <100 mV across 250 Ω load
• Temperature Drift: 0.005% full scale/°C
• Readback Accuracy: ±4% full scale
• Linearity: ±0.05% full scale
• Resolution: ±0.05% full scale
• Calibrated Accuracy: ±0.35% full scale (25°C)
• Directly Settable Range: 0 mA, 2.9 – 21.1 mA
• Max Resistive Load: 760 Ω
• Max Supply Voltage: 24V ±22V to 28VDC
• Max Output Compliant Voltage: 16V
• Max Open Circuit Voltage: 18V
• Response Time: 1 ms
• Switchover Gap (0 mA Output): ≤15 ms

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Digital Inputs (DI)

• Channels: 2
• Power Voltage Range: 22-28 VDC
• ON Sense Voltage/Current: ≥13 VDC or 6.12 mA
• OFF Sense Voltage/Current: ≤5 VDC or 2.1 mA
• Input Impedance: 4.6 KΩ
• Input Filter Delay: 1.78 ms
• Field Resistance (Guaranteed ON): ≤300 Ω @ 15 VDC
• Field Resistance (Guaranteed OFF): ≥30 KΩ @ 30 VDC

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Contact Us

• Phone: +86-15915488782
• Email: [email protected]
• WhatsApp: +8615915488782
• Business Hours: 24/7 service
• Address: Unit 601, Powerlong International Center, No. 1599 Luling Road, Siming District, Xiamen City, Fujian, China

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