Altivar goes to the error current
Altivar smart thing, but require skillful handling. The main thing is to read the correct instructions for the equipment you use. Sometimes in the statement describes the situation in which the equipment fails. I had one case using two altiverb 31 figure at the bottom.
IN one company stands two motors which drive the pump. Two of the heating circuit are switched from one boiler alternately, with a certain frequency. Just the enterprise was self-heating in the building. Standing Altivar which is managed with reference to the pressure sensors and temperature. But the Director decided to put tenants in the Annex, it is not a large area of territory, but decided to set printing equipment that requires a certain temperature.
To ensure that the system worked more Autonomous, it was decided to engage in a scheme of another Altivar, which will be included in the case, if in the main building reached the temperature you set. While not heating the main building, heating is included in other modes for extension and once falls setting the temperature on the main building, the extension is disabled.
came the guys who sell altiware and develop wiring diagrams and invented it. Launched and piled up. Winter came, strtoul heating in the main building things work and upon reaching the set temperature, had Altivar 31 which these controls turn off the water supply, which he did, but the second Altivar 31 which overtook the coolant at the Annex began to leave in error. I like electric power engineer decided to experiment and make the interchange time between disable and enable altiverb. But not as strange as all my efforts have failed, At the inverting input at the switching moment, not filmed signal. And most likely that in the absence of the control signal current protection has been triggered, since the current changes in the aisles 3 I rated. I relay intermediate instructed and the scheme has to be redone from top to bottom, and nothing happened. Until he made the following manipulations. The
inverter Input made closed command (ON). Power output from the inverter went to a smart starter (it works with the delay time relay), and with him two starter which I have included one engine then the other and was controlled by time relay. Now, any starter included, includes first delay relay intermediate starter, and after the trigger time General start. The intermediate contacts of the starter is brought in an open circuit of the inverter control command (ON). At the time of the first switching common starter is switched off and then switch.
and this is the type I have achieved the desired result and work, for more than three seasons running all on snot, I mean on transactions without printing systems and all similar and stable. If it took someone of my experience, I will be glad.
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