About the Springboard Control Signal Converter

The SPRINGBOARD Control Signal Converter can convert one control signal range to another. The Springboard is capable of converting 50 different input/output configurations. The Springboard’s isolation option can electrically isolate a control unit from the device being controlled by up to 2000 Volts, and can be used to operate as a pass-through device (the output signal range is the same as the input signal range), providing electrical isolation only.

The Springboard Control Signal Converter will input, convert, and output any of the following signal ranges:

0 to 1 Volt
0 to 5 Volts
0 to 10 Volts
-10 to +10 Volts

-5 to +5 Volts
4 to 20mA
0 to 20mA

Example

A 0 to 10 volt signal is selected as the input by adjusting the switch settings of Switch #1, the output can then be configured (using Switch #2) for any of the above voltage or current ranges, including the 0-10 volt range (for isolation of the signal without conversion).

Specifications

Springboard Control Signal Converter - Click for diagram and switch settings

Click image for diagram & switch settings (PDF)

The Springboard Control Signal Converter has the following specifications:

Dimensions: 4.00" x 3.03" x .60H"
Signal Parameters (Input-to-Output): Linearity (nominal) +/-2%; Accuracy +/-3%
Speed: Up to 100kHz in non-isolated mode 2kHz when in isolated mode
Signal and Power Connections: Terminal Block
Input to Output Isolation: 2kV optical isolation with option “-3” purchased
Power Requirements: 24–32 VDC @ 4 watts minimum (dedicated supply)

The supply current needed to operate both the input and output circuitry is approximately 100mA. Plug-in style wall transformers with an output voltage range between 24-32 Volts DC, 4.0W are sufficient. An on-board LED provides indication that the power supply is operating. With the “-3” isolation option purchased, two power supplies are required with 3.2 watts minimum for each. In order to achieve 2000 volts of isolation the user-supplied power supplies must also have a minimum of 2000 volts of isolation. Typically UL and CAS approved wall plug-in type transformer power supplies are sufficiently isolated.

Note: The Springboard requires a dedicated power supply. No other devices can be connected to this supply since the Springboard will be pulling the ground connection to -12vdc to produce the negative going signals.

Contact E/H Products, LLC through info@controlsignalconverter.com or call (203) 879-4293 for information, ordering, or special requirements.

Input and Output Control Signal Selection

An 8 segment dip switch (sw#1) and a 10 segment dip switch (sw#2) are used to select input/output combinations. The switches are supplied for "-2" and "-3" options. Disconnect power before adjusting the switches.

The Importance of Signal Isolation

Isolation can provide additional safety when there is a difference of potential between the controller and the device being controlled. This is particularly important when voltage signals such as 0-10 Volts, for example are used. The isolation option also reduces faulty readings caused by ground loops, motor noise, and other electrical interferences.

Current Loop Output

The current output ranges (4-20mA and 0-20mA) use the full power supply voltage range to source current. This is helpful when there is a high resistance in the current loop. If a high resistance is sensed, the source voltage will increase in order to maintain the required current loop signal.

With the 0-20mA or 4-20mA current range selected as the output, the voltage output terminals will output 0-10V or 2-10V respectively. This enables the voltage output to be used as a current monitor.

Cautions When Using the Current Output Ranges

If a common signal ground is used for both the controller and the device being controlled the Springboard must be operated in the “-3” isolated mode (two power supplies required).
If the output signal is a two-wire closed loop system, the unit can be operated in the non- isolated mode (option -1 or -2).

Springboard Pricing

B-01376-1	Dedicated 1 input to 1 output w/no dip switches (please specify input range/output range when ordering)	$135.
B-01376-2	Non-Isolated w/Dip Switches for 50 configurable combinations (“-2” option is typically in stock)	$149.
B-01376-3	Input to Output Isolation w/Dip Switches for all 50 combinations (requires two power supplies)	$169.

We offer a Urethane conformal coating to help protect the board from condensation, dew, frost, etc. The clear coating does not waterproof the board but does add additional protection. Please add a “-C” to the part number above for the coating option. Cost is an additional $15 and may delay the board from shipping same day.

Payment Methods Accepted

PayPal - Mastercard, Visa, American Express, Discover (through PayPal), Money order, Cashier's check, Company check

Visa/MasterCard, American Express, Discover (through PayPal) Money order/Cashier’s check/Company check

Contact Info

For information, ordering, or special requirements contact E/H Products, LLC:

By Email: info@controlsignalconverter.com
By Phone: (203) 879-4293

"During my many years as a control systems engineer I often encountered situations where the output of the control unit (PLC or Computer) was one type of control signal and the unit being controlled required a different type of control signal.

For example, a control unit may output a 4- 20mA control signal but the Motor Drive Unit requires a 0 - 10 Volt input signal. I was determined to develop a solution to this problem.

Serious design and debug efforts resulted in the Springboard Control Signal Converter, the solution for which I was looking…"

—Ronald W. Parker, MSEE, PE.

Check out Ron's book:
Circuits I Have Known (PDF, 1.5M)