Woodward SPC Servo Position Controller 8200-226 8200-227

SPC – Configurable Servo/Actuator Driver, Marine Certified

8200-226

SPC – Configurable Servo/Actuator Driver, CANOpen Comm

8200-227

Optional Mounting Bracket – Vertical

*Documentation: Product Spec: 03254. Manual: 26236

8928-7334

The SPC (Servo Position Controller) is available in two model configurations:

8200-226: DeviceNet Control with Analog Backup (or Analog primary demand)

8200-227: CANopen Control with Analog Backup (or Analog primary demand)

Models 8200-224 & 8200-225 are inactive and replaced by above item numbers.

The SPC positions a hydraulic or pneumatic actuator based on a position demand signal received from a

control. The SPC positions a single-coil actuator using single or dual position feedback devices. The

position demand signal can be sent to the SPC via DiviceNet or CANopen, (4 to 20) mA, or both. A

software program running on a Personal Computer (PC) allows the user to easily configure and calibrate

the SPC.

The SPC Service Tool is used to configure, calibrate, adjust, monitor, and troubleshoot an SPC. The

service tool runs on a PC and communicates with the SPC through a serial connection. The serial port

connector is a 9-pin sub-D socket and uses a straight-through cable to connect to the PC. Woodward

offers a USB to 9-pin Serial Adapter kit if needed for new computers that do not have a 9-pin serial

connector (P/N 8928-463). This kit contains a USB adapter, software, and a 1.8 m (6 feet) serial cable.

(See Chapter 4 for SPC Service Tool installation instructions.)

The SPC is configured by using the SPC Service Tool’s configuration file editor to create a file that is then

loaded into the SPC. The SPC Service Tool can also read an existing configuration from an SPC into the

configuration file editor.

See Chapter 4. SPC User’s Guide, for detailed instructions on using the SPC Service Tool.

The first time an SPC is connected to an actuator, it must be calibrated to the actuator’s position feedback

transducer. The user is guided through the calibration process by the service tool. Calibration can also be

performed by the control via the Digital Control link (DiviceNet or CANopen). The calibration procedure

can be found in the GAP help file.

SPC

Power Requirements

The SPC requires a voltage source of (18 to 32) V (dc), with a current capacity of 1.1 A max. If a battery

is used for operating power, a battery charger is necessary to maintain a stable supply voltage. The

power line should be protected with a 5 A, 125 V fuse capable of withstanding a 20 A, 100 ms in-rush

when power is applied.

Location Considerations

Consider these requirements when selecting a mounting location for the SPC:

• Adequate ventilation for cooling

• Space for servicing and repair

• Protection from direct exposure to water

• Protection from high-voltage or high-current devices, or devices which produce electromagnetic

interference

• Avoidance of vibration

• Selection of a location that will provide an operating temperature range of

(–40 to +70) °C / (–40 to +158) °F

Optional SPC Mounting Kit

Optionally, SPC mounting bracket kit #8928-7334 is available for use in reducing required panel mounting

space within a cabinet. Ideal for applications where multiple SPCs are utilized, this bracket allows SPCs

to be mounted such that they protrude vertically into the cabinet, reducing the required panel mounting

area. This bracket’s design allows users to first attach the SPC to the bracket, then install the entire

assembly onto a cabinet side panel. Please refer to

Shields and Grounding

A shield termination is provided at the terminal block for each of the signals. All of these inputs should be

wired using shielded, twisted-pair wiring. The exposed wire length beyond the shield should be limited to

one 25 mm (1 inch). The shield should be terminated at only one end in order to avoid creating a ground

loop