Configure Wireless Kill Switch parameters

Users can configure the max angle and max acceleration on their Wireless Kill Switch (WKS) to fit their operational needs by accessing the remote's configuration mode.

Important: Changing the values of the Wireless Kill Switch affects how the remote detects drops and can result in unsafe situations. The device does not prevent injury and safe work practices must be followed.

Receiver configuration

In an Aarcomm remote control system, there are two or three options for WKS configuration. You can access these on the configuration screen with the Wand? option:

None: This setting is for systems that don't use WKS. The WKS won't match with the receiver and won't detect drop events.
Required: This is the most common configuration and enables the use of the Wireless Kill Switch. Water output is disabled unless a WKS remote is linked to the receiver, in the bracket, and hasn't detected a drop.
Only: In this configuration, a handheld remote (for example, an Aarcomm H212 handheld remote) isn't required to use the Wireless Kill Switch. The system only consists of a WKS remote and a receiver. This configuration is typically used when an operator wants to use a WKS with a different manufacturer's remote control system. Exact wiring varies but typically the loop output is used to disconnect power when the remote detects a drop.

Button behaviour

Button	Description
Green	You can press this button at any time to save all parameters. If the WKS doesn't respond when you press the green button, turn the remote off and enter configuration mode again. If you hold the green button for too long during start up, the remote detects a stuck button and becomes unresponsive.
Red	Turns off the remote. Any unsaved changes are lost.
Upper left	Decrease the value of the active parameter.
Upper right	Increase the value of the active parameter.
Lower left	Special operation, dependant on the parameter.
Lower right	Go to the next Configuration screen.

Screens

Screen	Description
Vertical max angle	Maximum angle the Wireless Kill Switch allows before declaring a drop event when in Vertical mode. Values: 0 (disabled) to 179
Horizontal max angle	Maximum angle the Wireless Kill Switch allows before declaring a drop event when in Horizontal mode. Values: 0 (disabled) to 89
Slope	This parameter is optional. Values: 0 (disabled) to 40
Light brightness	The brightness of the screen light, when active. Values: 0 (off) to 9
Light duration	When no buttons are pressed and the DROP DETECTED warning screen doesn't show, the screen light turns off after this many seconds. Values: Off (display light disabled) 1 to 60 seconds Always On
Vertical max acceleration	Maximum acceleration the Wireless Kill Switch allows before declaring a drop event when in Vertical mode. Values: 0 (disabled) to 15.9g, depending on the application.
Horizontal max acceleration	Maximum acceleration the Wireless Kill Switch allows before declaring a drop event when in Horizontal mode. Values: 0 (disabled) to 15.9g, depending on the application.
Slope max acceleration	Values: 0 (disabled) to 15.9g, depending on the application.
Performance level	Increases battery life by reducing the transmit power and number of packets sent. Recommended to always use HighPerf. Values: HighPerf GoodPerf SavePowr LongRun
Splash screen time	Length of time that the start-up logo shows on the screen if no buttons are pressed. Values: 0.2 seconds to 19.9 seconds
Startup logo	Aarcomm logo by default. Other logos may be available, depending on your application.
Reset all parameters	Password required Resets all parameters to their default values.
Recalibrate motion sensor	Password required Factory use only. Modification is strongly discouraged.

Vertical and horizontal maximum angle

The Wireless Kill Switch's default maximum angle setting is 60 degrees from the normal operating orientation (vertical or horizontal) before declaring a drop event.

You can configure this limit for both vertical and horizontal to any angle between 1 and 179 degrees. Setting an angle limit to zero disables drop detection based on angle.

If you disable the maximum angle detection, no angle movement triggers a drop event and drop detection relies only on maximum acceleration.

Learn button

Press the Learn button to set the maximum angle value at the current angle of the remote.

Vertical and horizontal maximum acceleration

The Wireless Kill Switch's maximum acceleration setting is the maximum acceleration the remote can experience before declaring a drop event.

You can configure this limit for both vertical and horizontal to any value between 0.1g and 15.9g. Setting the acceleration limit to zero disables drop detection based on acceleration.

If you disable maximum acceleration detection, no acceleration movement triggers a drop event and drop detection relies only on maximum angle.

Learn button

Pressing the Learn button starts a 20 second timer, during which time the remote measures the acceleration of the unit.

The intention of this feature is to move the remote in a style that replicates the expected movement of the unit during normal working behaviours. At the end of 20 seconds, the remote reports the maximum measured acceleration and offers a suggestion of setting the maximum limit to 0.3g more than the highest measured acceleration. You can accept or reject this suggestion, but it can be helpful for the user to understand how 1g of acceleration feels.