Hello everybody, I'm facing a problem not big, but it's driving me crazy because after a lot of time I have not been able to solve it.
I'm in a factory where there is a Siemens PLC controlling several Powerflex 525.
I give the start and the stop from the PLC, but to change the frequency I use the keypad.
I had to change the speed of three Powerflex, but I managed to change it just in two of them (in one of those I hade to modify also the maximum frequency because the value I wanted was above the max).
In the third Powerflex I managed to change just the A0426 for the setpoint frequency, but the value was not written on the B0002 because it's below the minimum frequency.
I've tried to change the minimum frequency through the parameter P043, but the value doesn't change.
I then went to parameter P047 to see if it was set on 2 to enable the edit from the keypad, but it's set to 1, and I can't edit it.
I asked the customer if he protected some parameters with a password but he guarantees he didn't.
Does anyone has any idea about why I can't modify those parameters? Do I have to enable them somewhere?
Thanks in advance to everyone!
I'm in a factory where there is a Siemens PLC controlling several Powerflex 525.
I give the start and the stop from the PLC, but to change the frequency I use the keypad.
I had to change the speed of three Powerflex, but I managed to change it just in two of them (in one of those I hade to modify also the maximum frequency because the value I wanted was above the max).
In the third Powerflex I managed to change just the A0426 for the setpoint frequency, but the value was not written on the B0002 because it's below the minimum frequency.
I've tried to change the minimum frequency through the parameter P043, but the value doesn't change.
I then went to parameter P047 to see if it was set on 2 to enable the edit from the keypad, but it's set to 1, and I can't edit it.
I asked the customer if he protected some parameters with a password but he guarantees he didn't.
Does anyone has any idea about why I can't modify those parameters? Do I have to enable them somewhere?
Thanks in advance to everyone!