If your standing desk suddenly stops mid-movement and nudges back down without hitting anything, you're probably dealing with an overly sensitive collision detection system. It's a safety feature, but when it triggers without obvious reason, it gets old fast.
Here's what's actually going on and how to sort it out.
What is collision detection?
Collision detection is a built-in safety feature that stops the desk and reverses slightly if it senses unexpected resistance during movement. The idea is to protect you, your equipment, and the desk itself if something gets in the way, like a drawer left under desk or a cable snagged on something.
When it works correctly, you probably never notice it. When it's too sensitive, the desk stops and reverses during a completely normal height adjustment, which is frustrating.
How does it actually work? (It depends on your control box)
This is where things get interesting, because not all desks use the same method. There are multiple ways manufacturers have approached this, and here are the two most common:
Power draw monitoring is the more straightforward method. The control box tracks how much current each motor is drawing. If a motor suddenly has to work harder than expected because it's pushing against something, the spike in power consumption is interpreted as a collision and the desk stops. This method works well for genuine obstacles but can also trigger if one side of the desk is significantly more loaded than the other, or if a motor is developing a mechanical issue. One drawback of this method is that it may not be sensitive enough to objects underneath the desk, if an obstacle lifts one side of the desk rather than adding resistance against the motor, the current spike may not be large enough to trigger the anti-collision response.
Movement sensor is found in more advanced control box models. These have a separate sensor inside the control box itself that detects movement such as shaking, vibration, or tilting of the unit. This makes collision detection more responsive and accurate in many situations, but it also means that if the control box isn't mounted securely and is free to shake or vibrate as the desk moves, it can trigger false positives, especially if adjusted to the most sensitive setting. With this type, how firmly the control box is attached to the desk matters a lot.
Both types allow sensitivity adjustment, and both can be set too sensitively. But if you have the movement sensor type and you're getting frequent false triggers, checking the control box mounting and making sure the desk isn't able to sway should be your first steps in solving the issue.
Why does it trigger when nothing is in the way?
The most common causes of unnecessary collision detection, regardless of which type your desk has:
- Control box not properly mounted If it's hanging loose or swinging on its cables, any vibration during movement can register as a collision, especially on sensor-based models
- Uneven desk loading A desk heavily loaded on one side makes that motor work harder, which the power-draw system can interpret as resistance
- Sensitivity set too high Some desks ship with the most sensitive setting as default
- Cable routing issues Cables routed too tightly can tug on the control box as the desk moves, while cables that are too loose can snag on something and trigger anti-collision unexpectedly
How to adjust the sensitivity (Jiecang desks)
The steps below apply to Jiecang-based control systems with a handset that has a display and memory buttons. If your handset is a basic up/down model without a screen, sensitivity adjustment isn't available through the handset.
The sensitivity scale works as follows. Be aware that the exact weights can vary depending on your specific model, but here's the general guideline.
- 10.5 = most sensitive (triggers at approximately 10 kg of resistance)
- 10.6 = medium (approximately 15 kg)
- 10.7 = least sensitive (approximately 20 kg)
Note that sensitivity also varies across the desk surface, the sides of the desk tend to be more sensitive than the centre, so keep that in mind when choosing a setting.
Steps to change the sensitivity:
- With the desk in its lowest position, press and hold the Down button for approximately 5 seconds until RST appears on the display
- Press and hold the Up button for approximately 5 seconds until your desired sensitivity value appears (10.5, 10.6, or 10.7)
- Release the button and wait a few seconds until RST appears on the display again
- Press and hold the Down button until the desk dips slightly downward, rises back up, and stops. This resets the table and confirms the new setting has been saved
If you're getting frequent false triggers, start by moving from 10.5 to 10.6 and testing. Only go to 10.7 if needed, as you still want the system to catch genuine obstacles.
If adjusting the sensitivity doesn't resolve the issue, work through the following checks:
- Secure the control box Ensure it is firmly mounted and cannot shift during desk adjustment. This is particularly important for sensor-based models, where movement can trigger false readings.
- Check cable routing Confirm that no cables are pulling or putting tension on the control box as the desk moves.
- Inspect for physical interference Look for subtle contact points such as the tabletop brushing against a wall or nearby object during movement.
- Remove accessories Disconnect any non-essential devices (e.g. USB hubs) from the control box and retest.
If none of these steps resolve the issue and no error codes appear on the handset display, the fault may lie with the control box or anti-collision sensor itself. That said, this is rarely the cause, mounting problems and sensitivity settings account for the vast majority of cases.
Should you turn collision detection off entirely?
Most desks don't offer a way to disable it completely, and that's probably for the best. A desk lowering onto a hand, a laptop, or a pet without any protection is not a risk worth taking. The goal is to find a sensitivity level that catches real obstacles without triggering on every routine adjustment.
If the steps above don’t quite match what you’re seeing on your handset, feel free to contact us at contact@deskpart.com. A photo of your control box and handset is usually all we need to identify the model and help you with this matter.
