Does anyone have a firm understanding of the various parameters related to using a WJ200 with a braking resistor? In particular, I've not certain what the "braking duty cycle" is or what to set it to.
To complicate things, my lathe also has a foot brake. That's currently hooked into the e-stop circuit, connected with the safety mode mode GS1/2 inputs, and put the VFD into free-wheel stop. Unfortunately, once you release the foot brake the e-stop condition is cleared and the VFD happily goes back to controlled deceleration. I don't know what happens if you hold it long enough to come to a full stop or wait out the (current) 15 second deceleration setting.
The key settings I've identified are:
F002: acceleration time, currently 15 sec, would like to set it to <5 second
F003: deceleration time, currently 15 sec, would like to set it to 1-2 second
These are the ones puzzling me. Do they need to be set, and do I need to take the resistor value and allowed duty cycle into account (I'm using a 47 ohm 300W resistor).
B090: Dynamic braking usage ratio !! This is the one I'm most concerned about.
B095: BRD selection
B096: BRD activation
B097: BRD register (do they mean resistor?)
Other stuff of interest:
A039: jog stop, set to 4, controlled deceleration
A044: V/f characteristic curve, 00 - constant torque. Set this to sensorless vector control?
A051-A059: DC braking--??? Does this need to be looked at?
A061: Frequency upper limit, 72 Hz (based on motor nameplate spec)
A062: Frequency lower limit, 48 Hz (I'd like to lower this at some point)
A069: Acceleration hold frequency - ???
A070: Acceleration hold time
A154: Deceleration hold frequency
A155: Deceleration hold time
A081: AVR Function ?? disable during deceleration ?
A084: AVR deceleration gain ??
A097: Acceleration curve, 01 S-curve
A098: Deceleration curve, 01 S-curve
B050: Controlled deceleration on power loss?
B088: Restart mode after free-run stop
B091: Stop mode selection
B130-B134: Deceleration overvoltage suppression
To complicate things, my lathe also has a foot brake. That's currently hooked into the e-stop circuit, connected with the safety mode mode GS1/2 inputs, and put the VFD into free-wheel stop. Unfortunately, once you release the foot brake the e-stop condition is cleared and the VFD happily goes back to controlled deceleration. I don't know what happens if you hold it long enough to come to a full stop or wait out the (current) 15 second deceleration setting.
The key settings I've identified are:
F002: acceleration time, currently 15 sec, would like to set it to <5 second
F003: deceleration time, currently 15 sec, would like to set it to 1-2 second
These are the ones puzzling me. Do they need to be set, and do I need to take the resistor value and allowed duty cycle into account (I'm using a 47 ohm 300W resistor).
B090: Dynamic braking usage ratio !! This is the one I'm most concerned about.
B095: BRD selection
B096: BRD activation
B097: BRD register (do they mean resistor?)
Other stuff of interest:
A039: jog stop, set to 4, controlled deceleration
A044: V/f characteristic curve, 00 - constant torque. Set this to sensorless vector control?
A051-A059: DC braking--??? Does this need to be looked at?
A061: Frequency upper limit, 72 Hz (based on motor nameplate spec)
A062: Frequency lower limit, 48 Hz (I'd like to lower this at some point)
A069: Acceleration hold frequency - ???
A070: Acceleration hold time
A154: Deceleration hold frequency
A155: Deceleration hold time
A081: AVR Function ?? disable during deceleration ?
A084: AVR deceleration gain ??
A097: Acceleration curve, 01 S-curve
A098: Deceleration curve, 01 S-curve
B050: Controlled deceleration on power loss?
B088: Restart mode after free-run stop
B091: Stop mode selection
B130-B134: Deceleration overvoltage suppression