Paw Taw John Services Legacy Products
- AC650 Servo Control Card
- AC651 Servo Control Card
- AC700 Temposonic® Card
The AC650 Servo Control Card
The AC650 servo control card is used for linear positioning and hydraulic servo valve control. It can be used as a stand alone controller or can be used in multiple axis systems.
Firmware Features
- Isolated 8 inputs and 8 outputs (5-32VDC)
- Non-volatile memory storage so no battery backup is required.
- High-speed RS485/RS422 SDLC serial port. Baud rates of 1.2 m standard
- Low-speed RS-422 serial port accessible through a 6 pin phone jack. Baud rates of 2400 to 19.2k.
- Digital interface to MTS® Temposonics® linear transducers.
- Provides +/- 0-100 mA current output for Servo valves.
- Has +/- 10vdc output capability.
- Dip switch auto-null selection.
- Addressable Dip switch settings for up to 8 axes.
- Red status LED’s mounted on the face of the board.
- Uses Euro-style connector for easy installation in single or multiple card racks.
- Can be interfaced to RS-232 serial communication port through inexpensive converter.
Software Features
- Custom programs embedded on UV EPROM.
- Programs written to interface card control through a phone jack to dummy computer terminals.
- Programs written to interface card to PC’s through high-speed serial port.
- Personal Computer (PC) High-speed communications board available.
- Data presented in thousandths of inches or centimeters.
- Programs written for special applications.
Power Specifications
- +5vdc @ .5 amps
- +15vdc @ .1 amps*
- -15vdc @ .1 amps
*When using TransTerm 5 Computer terminal, +15vdc .5 amps is required.
Operating Temperatures
- -40 TO 150 deg.F ( -40 to 66 deg. C.)
AC651 Servo Controller Card Features and Electrial Specifications
The AC651 servo control card is used for linear positioning and hydraulic servo valve control. It is used with PLC’s as a external servo controller. A PLC can control 1-8 axes per bank.
Firmware Features
- Isolated 17 inputs (5-32VDC)
- Non-volatile memory storage so no battery backup is required.
- High-speed RS485/RS422 SDLC serial port. Baud rates of 1.2 m standard
- Low-speed RS-422 serial port accessible through a 6 pin phone jack. Baud rates of 2400 to 19.2k.
- Digital interface to MTS(R) Temposonics® linear transducers.
- Provides +/- 0-100 mA current output for Servo valves.
- Has +/- 10vdc output capability.
- Dip switch auto-null selection.
- Addressable Dip switch settings for up to 8 axes per bank.
- Red status LED’s mounted on the face of the board.
- Uses Euro-style connector for easy installation in single or multiple card racks.
- Can be interfaced to RS-232 serial communication port through inexpensive converter.
Software Features
- Custom programs embedded on UV EPROM.
- Programs written to interface card control through a phone jack to dummy computer terminals.
- Programs written to interface card to PC’s through high-speed serial port.
- Personal Computer (PC) High-speed communications board (PC1) available.
- Data presented in thousandths of inches or centimeters.
- Programs written for special applications.
Power Specifications
- +5vdc @ .5 amps
- +15vdc @ .1 amps*
- -15vdc @ .1 amps
*When using TransTerm 5 Computer terminal, +15vdc .5 amps is required.
Operating Temperature
- -40 TO 150 deg. F ( -40 to 66 deg. C.)
AC700 Temposonic® Interface Card
The AC700 Temposonic® card provides multiple digital interfaces for MTS® I, MTS® II, LP and LH Temposonics probes. Through the use of user installable jumpers, the interface card meets all interfacing needs for MTS® linear transducers.
Firmware Features
- +5vdc regulator installed on board.
- Capable of interrogating transducers > 100ft.
- Heavy duty Entrelec connectors used for high vibration environments.
- Board thickness is .120” to provide for solid non flexing in high g-force environments.
- All firmware soldered directly to board.
- User installable jumpers for configuring the board.
- Board jumpers include 1-8 Recirculations, external/internal interrogation, MTS® I and MTS® II, jumper configuation for MTS® II probes using DPM’s.
- Red Power status and Yellow Run status LED’s mounted on the board and located on a printed operating/troubleshooting truth table overlay.
- Servo valve connections on board terminals.
- Labeled terminal connections.
- Installation and operation manual provided with each unit.
- Timing selection for probes 0 to 48” and 48” to 170”.
Power Requirements

Operating Temperature
- -40 TO 150 deg.F ( -40 to 66 deg. C.)




