CONNECTOR AMPLIFIER FOR PROPORTIONAL VALVES (Economy Version, 4-20 mA Input) Part No.: Connector Amplifier CAPVE-H-4-20MA-2A-4C-2M Function: The Connector Amplifier - coil mount supplies a solenoid valve with current proportional to an input control (4-20 mA). Application: Accurate control of hydraulic and pneumatic proportional solenoid valves used in mobile equipment and industrial hydraulic or pneumatic circuits.	Go to: DESCRIPTION FEATURES PRODUCT PHOTO PART NUMBER TECHNICAL SPECIFICATIONS MOUNTING INSTRUCTIONS WIRING ADJUSTMENTS REQUEST A DATASHEET
Description: The economy version of the Connector Amplifier simplifies control of proportional solenoids by supplying a current proportional to an input control (4-20 mA). It accepts power supply voltages from 9 to 32 VDC. This linear solenoid controller utilizes high frequency switching output (PWM) to provide a DC current output. Maximum current output is 2 Amps. A current sensing circuit maintains current output regardless of changes in input voltage or coil resistance. The user can adjust maximum and minimum current. Dither frequency and amplitude are factory set to 250 Hz. In this economy version of the connector amplifier there are no ramps. The unit is available with a DIN 43650 connection to mount directly on the coil and comes complete with 2 meters of unterminated cable.
Features: Accepts 4-20 mA control signal input Maximum current output of 2 Amps Mates to a DIN 43650 plug on a cartridge or block style solenoid valve Broad range of supply voltages (9 to 32 VDC) with no degradation in performance Current sensing circuit maintains output regardless of changes in input voltage or coil resistance Modern technology utilizing high frequency switching output (PWM) Dither frequency and amplitude are factory set at 250 Hz and 5% Maximum current adjustment does not affect minimum current setting Adjustments accessible with a removable cover IP65 weather resistance rating Energy efficient design (no heat sink is required) Electronic limiting circuit means no internal fuses Short circuit proof (in case of solenoid failure or miswiring) Reverse polarity protection CE certified Can disconnect load while connector amplifier is powered ("Hot Swap")

Technical Specifications: All specifications typical at nominal input voltage and 25 degrees C unless otherwise specified.

Dimensions in mm/inches Length L1 L2 L3 Width=L3 Height H1 85.35 mm 61.75 mm 34.00 mm 34.00 mm 38.00 mm 3.36" 2.43" 1.34" 1.34" 1.49"

* Note:

1. Match power supply voltage with rating of solenoid coil. Operating the amplifier with a supply voltage lower than the solenoid rated voltage may result in reduced maximum current output.
2. The coil should have no polarity or protection diodes for proper operation of the device.
3. Do not exceed the current rating of the solenoid coil with the maximum current output of the driver.
4. Range of maximum output current is 2A (maximum output current=minimum current setting + maximum current setting).
   The single turn trim pots are adjusted with a Phillips#0 screwdriver.

Mounting Instructions:

• Supply voltage should be between 9 and 32 VDC. Excess voltage will damage the unit. Match the power supply voltage with the voltage rating of the solenoid coil. Operating the amplifier with a supply voltage lower than the solenoid rated voltage may result in reduced maximum current output.
• The coil should have no polarity or protection diodes for proper operation of the device.
• Do not exceed the current rating of the solenoid coil with the maximum current output of the driver.
• Do not install the amplifier near high voltage relays or other sources of electrical interference.
• Connect the power supply, signal input and valve solenoid.
• Set the input signal to the maximum level and confirm it is operating properly.
• Ensure the transparent lid is firmly in place. Ensure the brown rubber base gasket is in place, providing a seal between the amplifier and the plug on the valve. The mounting screw, compression washer and o-ring should be flush with the top of the lid and fastened in place.
• Tighten the screw to make a firm connection to the valve with a Phillips #2 screwdriver.

Connections:

Connect the cable conductors to the power supply and input signal as follows.

For 4-20 mA Control:
Use I-Min. screw to set up minimum speed with minimum control input.
Use I-Max. screw to set maximum speed with 100% of control input.

For wiring diagrams, request a faxed copy of the datasheet.

Adjustments:

Adjusting the minimum current will shift the maximum current as shown.

Adjusting the maximum current does not affect the minimum current setting.

Setting the Minimum Current (Imin):

• Set the minimum current before setting the maximum current.
• Apply minimum input (4 mA).
• The factory setting for the Imin trim pot is 0 or fully counter clockwise (CCW).
• If the desired minimum current is greater than 0, adjust the trim pot clockwise (CW) until the desired current is achieved.

The minimum current setting can be used to take into account the mechanical valve deadband and provide desired offsets from zero to allow full control within the functional range of the specific valve.

Setting the Maximum Current (Imax):

• Apply maximum control (20 mA).
• The factory setting for the Imax trim pot is 100% or fully CW.
• Turn the trim pot CCW to adjust the current setting downwards to the desired maximum.

The maximum current setting is adjusted to meet the customer's working pressure or flow range to the full scale signal input range. This provides maximum control for a specific application.

OEM and distributor pricing is available upon request.

DATASHEET Download the datasheet provided in Adobe PDF format. If you do not have Adobe Acrobat Reader installed, go to www.adobe.com and download Adobe Acrobat Reader.

Request a fax or email copy of the datasheet. Please email sales@axiomatic.com and provide the product name, part number, your contact information, telephone and fax number.

Specifications are subject to update without notice.

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