Kataeb
Member
Hy,
We are using the below mentioned Siemens motor, micromaster drive, and the following accessories in order to run an unwind:
Filter emc filter class B, 1.1 to 2.2kw, 6SE6400-2FL02-6BB0
Motor 1.1kw, 1415rpm, 7.4Nm, 2.55A, imb5, +kty, 1LA7090-4AA11-ZA23
Resistor braking resistor, 1.1 to 2.2 kw, 6SE6400-4BC11-2BA0
Inverter micromaster 440, 1.1 kw, 220 vac, 6SE6440-2UC21-1BA1
Profibus module for micromaster 440, 6SE6400-1PB00-0AA0
Power cable 4x1.5 mm2, 15.2 A, + total shield, 6FX8008-1BB11-3AA0
In fact we have 2 identical unwinds driven by 2 motors “1LA7090-4AA11-ZA23”.
When one of them is running the other motor is at standstill, each 30 minutes the running unwind will stop and in 200 milliseconds, the other unwind starts running.
So at a defined time only one motor is running, in 200 ms we will stop the first and switch to the other.
The question is: is it possible to run these 2 motors with one drive only and use two contactors (or 3 phase solid state relays) to switch from one motor to the other, instead of using 2 drives?
Thanks
We are using the below mentioned Siemens motor, micromaster drive, and the following accessories in order to run an unwind:
Filter emc filter class B, 1.1 to 2.2kw, 6SE6400-2FL02-6BB0
Motor 1.1kw, 1415rpm, 7.4Nm, 2.55A, imb5, +kty, 1LA7090-4AA11-ZA23
Resistor braking resistor, 1.1 to 2.2 kw, 6SE6400-4BC11-2BA0
Inverter micromaster 440, 1.1 kw, 220 vac, 6SE6440-2UC21-1BA1
Profibus module for micromaster 440, 6SE6400-1PB00-0AA0
Power cable 4x1.5 mm2, 15.2 A, + total shield, 6FX8008-1BB11-3AA0
In fact we have 2 identical unwinds driven by 2 motors “1LA7090-4AA11-ZA23”.
When one of them is running the other motor is at standstill, each 30 minutes the running unwind will stop and in 200 milliseconds, the other unwind starts running.
So at a defined time only one motor is running, in 200 ms we will stop the first and switch to the other.
The question is: is it possible to run these 2 motors with one drive only and use two contactors (or 3 phase solid state relays) to switch from one motor to the other, instead of using 2 drives?
Thanks