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.
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