AndonBox: a simple but essential accessory for signal towers

The term 'Andon' originates from the Japanese and is the word for a traditional paper lantern often used to signal warning.  In the language of lean production methods, however, an Andon light commonly refers to any sort of visual system (a signal tower or traffic light) which will alert staff to danger in the workplace, a change in status of a machine or process or as a simple 'call for action'.

When used as a 'call for action' the Andon light needs to be manually activated by the member of staff at the workstation.  For example, a simple four-colour Andon light might signify:

Green - Workstation manned
Amber - Assistance required from maintenance
Red - Serious error, supervision required
Blue - Material shortage – stores to replenish

A flexible call system
A workstation equipped with a signal tower and an AndonBox allows the member of staff to call immediately for help without leaving the workstation. Local visibility of the 'call for action' is given by the signal tower, which may also be equipped with a sounder for additional effect.

Easy to install
The AndonBox is a switch box and is supplied with essential cabling, for connection to the Andon light or signal tower, plus a plug-in 24V power supply unit.

Wireless technology provides a complete overview 
In larger production areas workstations are often outside the supervisor’s line of sight. For situations such as these, WERMA offers the combination of an AndonBox and WIN (Wireless Information Network) unit, which allows a central overview of the currents status of up to 50 workstations.

By adding a WIN transmitter to the signal tower operated by the AndonBox, every time a switch is actuated that data is collected by the WIN system, providing review and performance monitoring of the workstation.