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4
P5 – Check for faulty component WITHOUT error codes (no digital display on Desk Panel, no Bluetooth)
Symptom
Procedure
System will move down but
not up
1.
Initialize (
P1
)
System will not initialize.
OR
System won’t complete the full
range of motion.
– After each of these steps,
attempt to initialize (P1).
1.
Check mains cable connection. Test power outlet using another device (lamp,
phone charger, etc.)
2.
Plug in a new switch.
3.
Connect all existing cables to a new control box.
4.
Try pressing and releasing the down button a few times before pressing and
holding for 5 seconds.
Symptom
Procedure
Desk is uneven
1.
Initialize the desk. If both legs begin to run down, complete the initialization. If only
one leg moves, stop and move to Step 2.
2.
Check motor cable connections. Check to ensure motor cables are not pulled during
movement. With a standard, Plug & Play control box, it’s possible that only one leg
is connected, and connected to Channel 1. In this case, it will initialize and run
Channel 1 only. If there is only one leg but it’s connected to Channel 2, it will not
initialize.
3
. If a motor cable was disconnected, try initializing again.
4.
If unsuccessful, connect the desk leg from Channel 2 into Channel 1, with nothing in
Channel 2, and initialize.
5.
Try initializing the same leg that’s in Channel 1, but with a different motor cable. If it
still won’t initialize, replace the desk leg.
4
P5 – Check for faulty component WITHOUT error codes (no digital display on Desk Panel, no Bluetooth)
Symptom
Procedure
System will move down but
not up
1.
Initialize (
P1
)
System will not initialize.
OR
System won’t complete the full
range of motion.
– After each of these steps,
attempt to initialize (P1).
1.
Check mains cable connection. Test power outlet using another device (lamp,
phone charger, etc.)
2.
Plug in a new switch.
3.
Connect all existing cables to a new control box.
4.
Try pressing and releasing the down button a few times before pressing and
holding for 5 seconds.
Symptom
Procedure
Desk is uneven
1.
Initialize the desk. If both legs begin to run down, complete the initialization. If only
one leg moves, stop and move to Step 2.
2.
Check motor cable connections. Check to ensure motor cables are not pulled during
movement. With a standard, Plug & Play control box, it’s possible that only one leg
is connected, and connected to Channel 1. In this case, it will initialize and run
Channel 1 only. If there is only one leg but it’s connected to Channel 2, it will not
initialize.
3
. If a motor cable was disconnected, try initializing again.
4.
If unsuccessful, connect the desk leg from Channel 2 into Channel 1, with nothing in
Channel 2, and initialize.
5.
Try initializing the same leg that’s in Channel 1, but with a different motor cable. If it
still won’t initialize, replace the desk leg.
5
5.
Also, be aware if the control box has a special configuration: If the desk is programmed
with a lower stroke limit, so as to avoid a collision with something like a file cabinet, it is
possible that it also has a custom, longer Forced Initialization Time. This is the time
required to hold Down before initialization begins. Sometimes this is 10 seconds or longer.
6.
If you have a standard control box without a special configuration (i.e. “Plug & Play”),
try to initialize each leg in Channel 1 by itself, with nothing else plugged into the motor
channels on the control box. Also, swap the motor cables so that a different motor cable
is used to initialize Channel 1 by itself. The problem could be a faulty desk leg or a faulty
motor cable.
Desk is uneven
1.
Desk is uneven (
P4
)
Appendix
What is the Control Box Thinking?
There are many clever procedures, checks and measurements performed in the control box. Here is a brief description of
what the control box is trying to accomplish while it is activating an application:
• Safe activation of the application
o Parallel, even movement of all desk legs in the application is critical.
»
The control box does not directly know the position of each desk leg. Instead, the position of each leg
is constantly calculated via Hall pulses from each motor. The legs on a single reference are not
allowed to be more than +/- 5 Hall pulses out of sync. For a standard DL, this amounts to +/- 0.55 mm.
»
Motor cable disconnections are also detected as errors.
o If PIEZO technology is present in the desk leg, the control box monitors for PIEZO “collision” signals from
each channel. When a PIEZO signal is sensed, movement is immediately stopped and, if there is room, the
system is ran in the opposite direction a small distance.
o Anytime the control sees an incomplete signal, or more than one signal (multiple keys pressed, multiple
desk panels activated at the same time), an error is determined and no movement is allowed at that
moment. This is to prevent an action of movement that is not intended by the user.
• Protection from equipment damage
o Internal temperature of the control box is monitored.
o Maximum current draw for each motor channel, as well as the system as a whole, is measured. When the
current exceeds an allowable limit, an error is presented.
Troubleshooting and Error Code help
Download the Troubleshooting guide here
Use the QR Code or follow this link:
https://www.tbcconsoles.com/DPI-troubleshooting-guide.pdf
TROUBLESHOOTING