- Joined
- Dec 27, 2016
- Messages
- 45
Suggested starting point for the Lenze SMV VFD programming parameters and explanations. It assumes you are using 2 wire control, this is a starting point:
P100 Start Control Source = 1 (Uses terminal strip to set start/stop source)
P101 Standard Reference Source = 1 (selects the speed source as 0-10VDC)
P103 Maximum Frequency = 75.0 (allows a little more top end speed range, and wider speed adjustment)
P104 Acceleration Time 1 = 5 seconds
P105 Deceleration Time 1 = 3 seconds (you need a braking resistor for anything shorter)
P111 Stop Method = 2 (The drive will ramp the motor to a stop according to P105 or P126)
P112 Rotation = 1 (Allows the motor to run in both forward AND reverse)
These configure the terminals inputs as to what they do, they are by default all turned off
Assuming you are using straight 2 wire controls (i.e. NOT using 3 wire start-stop-reverse) then:
P121 TB-13A Digital Input = 11 would be START FORWARD
P122 TB-13B Digital Input = 12 would be START REVERSE
P123 TB-13C Digital Input = 15 would be JOG FORWARD
P124 TB-13D Digital Input = 16 would be JOG REVERSE
P160 Speed at Minimum Signal = 0 (Hz)
P161 Speed at Maximum Signal = 75 (Hz, should be the same as P103)
P162 Analogue Input Filter = 0.5 (seconds, this will decrease motor speed wandering because of electrical noise)
P166 Carrier Frequency = 2 (sets carrier frequency to 8 kHz, if the motor whine is loud set it to 3 which is 10kHz)
Vector Parameters, these MUST be set to your motor parameters
P300 Drive Mode = 5 (Vector Torque or constant torque)
P302 Motor Rated Voltage = usually either 220V or 230V (Set to motor nameplate voltage)
P303 Motor Rated Current = _ _ _ (Set to motor nameplate amperage)
P304 Motor Rated Frequency = 60 (Hz, this is the base frequency of the motor on the nameplate)
P305 Motor Speed = _ _ _ _ (RPM, set to motor nameplate RPM at 60Hz)
P399 Motor Auto calibration = When you machine is up and running and everything is working, you can run this to fine tune the motor parameters.
mksj or anybody else out there listening. I've got one last thing that has been bugging me, and I was wondering if anybody know if there was a fix. So as above I have configured:
P121 TB-13A Digital Input = 11 would be START FORWARD
P122 TB-13B Digital Input = 12 would be START REVERSE
but what has been making me nuts is when neither TB-13A or TB-13B are closed it currently continues spinning forward. I was hoping that with both open it would stop spinning. Almost like a neutral control at the directional switch. Anybody have any thoughts why it could continue forward when neither is closed?
Everything else is working fine it's just one of those little things that's been bugging me.