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KI Genesis Desking Repair & Replacement Instructions

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REPAIR & REPLACEMENT INSTRUCTIONS
Before servicing, please carefully read these instructions and keep for future reference.
Control box programs are protected under US and International Copyright Law.
Reproduction without written consent of LINAK Inc. is strictly prohibited.
Some of the components of this system or their usage may be protected by US and foreign patents.
GLOSSARY
Components
•
Desk Legs - The supporting and lifting columns, responsible for moving the working load of the
application up and down. Finished with powder-coat paint.
•
Control Box (CBD6S) – Is the computer and power supply to the leg lift system.
•
Control Switch – The user interface. Depending on the model, it is used to activate the
application, set memory positions, display the height, display error codes and give reminders to
the user.
•
Motor Cable – Transmits low voltage power (18-39 VDC) from the control box to the desk legs,
and also transmits Piezo signals when available from the desk leg.
•
Power Cord – Transmits high voltage power (120 VAC in US and Canada) from the building
source power to the control box.
Other
•
Initialize – Procedure to reset all desk legs to the fully retracted position so that the control box
knows where the legs are positioned.
•
Reference – Any group of desk legs that run in parallel when an "up" or "down" command is sent
to the control box.
•
Duty Cycle - A ratio of "on time" to "off time" of a system that will prevent overheating of the
electronics.
•
Mechanical Stop - A condition in which motor rotation is prevented.
Genesis
Desking
®
Lift System
January 2019
1

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  • Page 1 REPAIR & REPLACEMENT INSTRUCTIONS Genesis Desking ® Lift System January 2019 Before servicing, please carefully read these instructions and keep for future reference. Control box programs are protected under US and International Copyright Law. Reproduction without written consent of LINAK Inc. is strictly prohibited. Some of the components of this system or their usage may be protected by US and foreign patents.

  • Page 2: Important Safeguards

    IMPORTANT SAFEGUARDS When using any motorized electrical device, basic precautions should always be followed, including the following: • This system of components is designed to make office desks height-adjustable. Do not use for anything other than its intended purpose. • Inspect the system for damage from shipping before installing or connecting to power.

  • Page 3: General Information

    GENERAL INFORMATION • The controller, cables and switch do not require regular maintenance. • Most service issues that may arise can be addressed by the customer with the help of the “Standard Troubleshooting Procedures” on page 4. • A loss of power during the operation of the desk will have no impact on its operation once power has been restored.

  • Page 4: Troubleshooting

    TROUBLESHOOTING Procedure 1: Initialize the Control Box (Reset): Note: This is commonly the solution when a desk will move down but not up. This is how the system is programmed to behave when a control box requires initialization. 1. Hold the “down” button on control switch to ensure the desk is retracted to its lower limit (whether it’s the fully retracted hard stop, or a configured lower limit).
  • Page 5 TROUBLESHOOTING (cont.) Symptom Procedure Desk is powered, but 1. Try pressing and releasing the “down” button a few times before will not initialize. pressing and holding for five seconds. 2. Take note if the control box has a special configuration. If the desk is programmed with a lower stroke limit, to avoid collision with something like a filing cabinet, it is possible that it has a custom, longer Forced Initialization Time.
  • Page 6 TROUBLESHOOTING (cont.) Procedure 5: Check for Faulty Components without Error Codes (Standard Switch) Note: For the trouble shooting procedure to follow, one would need to have an extra, known good version of the components listed in the “Glossary Components” section at the beginning of this document.

  • Page 7: Error Codes

    CONTROL BOX INFORMATION There are many clever procedures, checks and measurements performed in the control box. Below is a brief description of what the control box is trying to accomplish while it is activating an application: Safe Activation of the Application •...
  • Page 8 ERROR CODES (cont.) Error Code Name Description Potential Cause Troubleshooting Power fail Power fail happened, • Power cord pulled • Check power cord or power regulator during driving. is not caught, and adjusted below 10%. • Internal fault. is allowed to freely •...
  • Page 9 ERROR CODES (cont.) Error Code Name Description Potential Cause Troubleshooting Ch1 missing Channel 1 is • Disconnection. • Check motor cable detected missing. • Faulty motor cable. connections and • Faulty motor in leg. integrity. • Change motor cable or desk leg. •...
  • Page 10 ERROR CODES (cont.) Error Code Name Description Potential Cause Troubleshooting Ch2 pulse Channel 2 had to • Loose/faulty cable. • Check motor cable fail many pulse errors. • Hall sensor PCB. connections and integrity. • Initialize the system. • Change desk leg. Ch3 pulse Channel 3 had to •...
  • Page 11 ERROR CODES (cont.) Error Code Name Description Potential Cause Troubleshooting Overload down • Hit obstruction. • Remove overload occurred on obstruction. down channel 4. • Initialize if necessary. Ch1 anti-col Anti-collision • Hit Obstruction. • Remove triggered on obstruction. channel 1. •...
  • Page 12 ERROR CODES (cont.) Error Code Name Description Potential Cause Troubleshooting Ch4 pulse Pulses counted • Motor poles are • Check motor cable wrong direction in crossed. connections and channel 4. • Hall sensor cables integrity. are crossed. • Initialize the system.
  • Page 13 ERROR CODES (cont.) Error Code Name Description Potential Cause Troubleshooting Ch4B short Short circuit on • Damage to motor • Inspect motor channel 4 [If T-splitter cable. cable for damage, is used, short circuit • Damage to cable replace if damaged. on 4B].
  • Page 14 RATINGS Leg Controller - 1 & 2 Low Load Input ..................120VAC/60Hz/2A Low Load Output ....................24VDC/9A Low Load Duty Cycle ..............30 sec on/ 270 sec off High Load Input ..................120VAC/60Hz/2A High Load Output..................24VDC/14A High Load Duty Cycle..............20 sec on/ 720 sec off Nominal power ......................180VA Operating voltage (secondary) ................29VAC Operating voltage (electronic) .................

  • Page 15: Motor Encoder

    Output ......................Open Collector Current from Output Signal ...............Isource 400μA Output Voltage ....................UoutL 1.5V 1330 Bellevue Street • P .O. Box 8100 • Green Bay, WI 54308-8100 • 1-800-424-2432 • www.ki.com 2019 Krueger International, Inc. All Rights Reserved • Code KI-62057R2/KI/PDF/0119 ©...

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