Weld Controls Central Monitoring
When larger numbers of spot welding timers are used in a factory, it is often very useful to be able to monitor these from a central control station. Programme changes can be made centrally and more importantly, monitoring information gathered centrally, allowing predictive fault analysis to be undertaken.
For example, if a shunt or weld cable is slowly failing, the constant current system may be compensating by increasing the firing angle to maintain the required spot welding current.. Monitoring the firing angle and asking the central computer to report on changes which are occurring would allow maintenance staff to predict failure of the shunt or cable and replace it prior to failure.
Central control of programme settings will ensure that local programme changes are visible and have to be justified in terms of weld quality gains.
The PW systems use a common but secure RS485 protocol for safety reasons.
WS98 software allows complete drill down into the production line. A weld failure alarm on a single robot cell will be highlighted and the user can immediately see the weld data for that single spot on a specific robot. The programme can then be adjusted remotely. When larger numbers are in use this facility is critical to overall weld failure rates and diagnostics.
Even for small users, the facility is cost effective, as faults are immediately highlighted in the production office and corrective action can be taken early. With computers now cheap and the software at a reasonable cost, this is the future of all production spot welding.
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