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Installation Manual V2
Sapling Converter Box
The Sapling Company, Inc.
1633 Republic Road
Huntingdon Valley, PA 19006
215.322.6063 P.
215.322.8498 F.
www.sapling-inc.com
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Sapling Converter Box
Table of Contents
Installation Instructions
Installing the Converter Box 3
Operating and Wiring Instructions
Board Layout 4
Operating Instructions 4
Support
Frequently Asked Questions 5
Troubleshooting 6
The Sapling Company, Inc.
1633 Republic Road
Huntingdon Valley, PA 19006
215.322.6063 P.
215.322.8498 F.
www.sapling-inc.com
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Installation Instructions
Installation the Converter Box
The Sapling Company, Inc.
1633 Republic Road
Huntingdon Valley, PA 19006
215.322.6063 P.
215.322.8498 F.
www.sapling-inc.com
1. Locate where the Converter Box is to be mounted.
2. Mount the Converter Box using 4 screws to secure it to the surface.
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Operating and Wiring Instructions
Board Layout
The Sapling Company, Inc.
1633 Republic Road
Huntingdon Valley, PA 19006
215.322.6063 P.
215.322.8498 F.
www.sapling-inc.com
Operating Instructions
1. Connect external power to terminal blocks 5 and 7. Pin 6 is ground.
2. Connect RS485 input communication to terminal blocks to pins 1 and 2.
3. Connect output for 2-wire system to terminal blocks 3 & 4 (terminal blocks 10 & 11 are not used). Each pair will drive a certain number of clocks
totaling up to 5.5 amps.
4. When the box is connected to power (terminal blocks 5,6 and 7) and communication (terminal blocks 1 and 2) LEDs L2 and L3 will flicker. LED L2
will light up first and will remain lit longer. It will dim when L3 becomes lit. This informs the technician that the device is receiving a communication signal.
5. The converter box is equipped with overload protection. In the event the device has reached maximum current output or there is a short circuit
in the output, LED L5 (marked with an ‘L’ on the PCB) will light up. To reset, push the small black button located next to the transformer and 3
capacitors.
6. The converter box also contains overheating protection. When the device reaches a certain temperature (approximately 32° C) a fan will engage
to reduce the temperature. If the converter box reaches 50° C, the entire unit will shut down. If the unit shuts down, LED L4 (marked with a ‘T’)
will light up. To reset, push the small black button located next to the transformer and 3 capacitors.
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The Sapling Company, Inc.
1633 Republic Road
Huntingdon Valley, PA 19006
215.322.6063 P.
215.322.8498 F.
www.sapling-inc.com
Support
Frequently Asked Questions
Which systems do the Converter Box work with?
The Converter Box only works on 2-wire digital communication systems.
What voltage clocks can I use with the Converter Box?
The Converter Box only works on 24 volt clock s.
Can I use analog and digital clocks in conjunction with the Converter Box?
Yes, analog and digital clocks can be used with the Converter Box. Both the analog and the digital clocks must be 24 volts, and can accept the 2wire digital communication system. Please refer to the clock’s installation instructions for specific wiring diagrams.
What will happen if the polarity on the RS485 is reversed?
The clocks will power up, but not correct. Make sure the wires are on the correc t polarit y and/or refer to the wiring diagrams in the clock’s
installation manual.
What does the Load LED do?
The Load LED warns the user if the Converter Box is reaching 80% or higher of its maximum threshold of 5.5 amps. If the Load LED turns solid, it
will shut the Conver ter Box of f, and will attempt to reset in two minutes.
What does the Temperature LED do?
The Temperature LED warns the user if the Converter Box is reaching 80% or higher of its maximum threshold for temperature. If the Temperature
LED turns solid, it will shut down the Converter Box, and will stay off until the user presses the reset button on the board.
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The Sapling Company, Inc.
1633 Republic Road
Huntingdon Valley, PA 19006
215.322.6063 P.
215.322.8498 F.
www.sapling-inc.com
Support
Troubleshooting
What happens if L2 and L3 are not flickering, or if only 1 LED is lit?
Check the RS4 85 input to the converter box.
What happens if L3 lights longer than L2?
The polarity of the RS485 input is reversed. Switch wires 1 and 2.
What do I do if the L4 is lit?
Push the reset button to start the system. L4 indicates if the system is overheating. If problem continues, please contact manufacturer.
What should I do if L5 is flashing?
This indicates that the converter box has reached 80% of its current capacity. It is possible for the converter box to shut down at this point should
it be subjected to a spike in the line. Should a shut-down occur, the conver ter box will attempt to power up automatically. If after attempting
to restart twice without success, the unit will remain off until the manual reset button is pushed. This is to inform technicians of a problem
somewhere in the system and is not an abnormal occurrence.
What should I do if L5 is lit?
Remove load from the converter box , turn the box on and push the reset button. Then connect one leg of wiring at a time to determine the source
of the shor t circuit.
NOTE: Clock system wiring legs can be attached to as many of the “3” and “4” terminal blocks as you wish, to a total of 5.5 amps.
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