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Start by
Noesy
10-16-2012 09:23 AM

7.5kW frequency inverter

I bought a 7.5kW frequency inverter from yours, and got a few questions:

1. wobble frequency. What is this? When should we use it and how?

2. is it possible to order as a spare parts keyboards for inverters? What is the price for them and how many sizes do you have?

3. Digital Inputs / Digital Outputs – is it SINK or SOURCE type? (NPN/PNP) is it possible to set it in some parameters or by jumpers?

4. have you got in your offer inverters with “fire type” input / output? It is special inverter which can be used in garage in big buildings for example.

5. have you got inverters with certification for work in lift / elevator application?

6. have you got software which can be used for configuration of inverters i.e. using MODBUS protocol?

7. we are not sure how to explain customers that he is buying frequency inverter where he has got information that his inverter has 7.5 or 11 kW of power. Can you help us with this. Normally there should be only one value. I.e. this inverter is 7.5 kW. This is its continuous power. What do you mean by work in “P mode” and “G mode”?