Ronnie Sullivan
Member
I'm trying to set up a Yaskawa GA500 inverter to do multi- speed stage start up.
I only want 3 stages.
On run, ramp to 15HZ, wait n seconds to allow amps to come down
ramp to 30HZ, wait n seconds. Ramp to 43HZ. Run until turned off.
I want the time from zero speed to full to be about 40 seconds.
By doing a normal slow ramp up - the amps stay too high for too long and gives an overload fault.
If I do it manually via the keypad in the sequence above it always gets to the required speed.
The drive is capable of multi stage speed up but the technical manual is very complicated to understand. (or it's me)
It's a 22KW-30KW drive with a 22KW motor.
It's driving a centrifugal device like a spin dryer that expels water from a product.
I only want 3 stages.
On run, ramp to 15HZ, wait n seconds to allow amps to come down
ramp to 30HZ, wait n seconds. Ramp to 43HZ. Run until turned off.
I want the time from zero speed to full to be about 40 seconds.
By doing a normal slow ramp up - the amps stay too high for too long and gives an overload fault.
If I do it manually via the keypad in the sequence above it always gets to the required speed.
The drive is capable of multi stage speed up but the technical manual is very complicated to understand. (or it's me)
It's a 22KW-30KW drive with a 22KW motor.
It's driving a centrifugal device like a spin dryer that expels water from a product.