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Schaublin 125-CNC retrofit.
- RotarySMP
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11 months 1 week ago - 11 months 4 days ago #338649
by RotarySMP
Replied by RotarySMP on topic Schaublin 125-CNC retrofit.
I (finally) installed a Lenze EMB9351-E brake module in my Schaublin, after a couple of years of annoying 15 sec waits for the spindle to coast down to a stop.
Back when I did the original installation, I was getting over-current warnings when I tried to ramp down in less time.
I somehow set the Lenze 8214 VFD to not control the motor down, but rather to just let it coast down.
So per the manual, I have the following control commands: Pin 7 / Pin 8 (Analog in) connected to a Mesa analog output, and jumpered for 0-10V. This is the main control. The VFD doesn't get on/ off commands, it gets speed commands. Pin 9 (Power for a control poti) Unused. Pin 62 (Analog out) Unused Pin 20 (power out for digital inputs) Unused. Pin 28. (Activate VFD) Controlled by Mesa digital output.Pin E4 (Change direction) Controlled by a Mesa digital output.
Pin E3 DC (DC braking) unused.
Pin E2 (Jog at frequency 2) Unused.Pin E1 (Jog at frequency 1) Unused.
Pin 39 (Gnd) Connected. Output Relay
K11 (NO Out) Connected to Mesa inK12 (Common) Connected to Mesa in.
assets.euautomation.com/uploads/parts/pdf/338201e.pdf
I have spent two evening going through both EN and DE user guides, reading out every single parameter, and adjusting everything which looks like it is involved with ramps, and I can't work out how to remove the coasting, and restore the C13 deceleration.
I even used parameter C02 --> 1 to restore all the default factory parameters, and went back in and set the motor current, slip and CosPhi. It is still ignoring the C13 decelerate ramp value and just free wheeling to a stop. The C12 acceleration is functional.
This is embarasing,, but I can't for the life of me remember what I did to set this VFD into coast down mode. Does anyone have experience with Lenze VFD's who can give me a tip please?
Cheers,
Mark
Back when I did the original installation, I was getting over-current warnings when I tried to ramp down in less time.
I somehow set the Lenze 8214 VFD to not control the motor down, but rather to just let it coast down.
So per the manual, I have the following control commands: Pin 7 / Pin 8 (Analog in) connected to a Mesa analog output, and jumpered for 0-10V. This is the main control. The VFD doesn't get on/ off commands, it gets speed commands. Pin 9 (Power for a control poti) Unused. Pin 62 (Analog out) Unused Pin 20 (power out for digital inputs) Unused. Pin 28. (Activate VFD) Controlled by Mesa digital output.Pin E4 (Change direction) Controlled by a Mesa digital output.
Pin E3 DC (DC braking) unused.
Pin E2 (Jog at frequency 2) Unused.Pin E1 (Jog at frequency 1) Unused.
Pin 39 (Gnd) Connected. Output Relay
K11 (NO Out) Connected to Mesa inK12 (Common) Connected to Mesa in.
assets.euautomation.com/uploads/parts/pdf/338201e.pdf
I have spent two evening going through both EN and DE user guides, reading out every single parameter, and adjusting everything which looks like it is involved with ramps, and I can't work out how to remove the coasting, and restore the C13 deceleration.
I even used parameter C02 --> 1 to restore all the default factory parameters, and went back in and set the motor current, slip and CosPhi. It is still ignoring the C13 decelerate ramp value and just free wheeling to a stop. The C12 acceleration is functional.
This is embarasing,, but I can't for the life of me remember what I did to set this VFD into coast down mode. Does anyone have experience with Lenze VFD's who can give me a tip please?
Cheers,
Mark
Last edit: 11 months 4 days ago by RotarySMP.
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11 months 1 week ago #338653
by cajbr
Replied by cajbr on topic Schaublin 125-CNC retrofit.
Are your input terminals configured for QSP? C107
Also check C105 which is QSP decel time.
That manual is awful.
BR
Also check C105 which is QSP decel time.
That manual is awful.
BR
The following user(s) said Thank You: RotarySMP
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11 months 1 week ago - 11 months 1 week ago #338655
by RotarySMP
Replied by RotarySMP on topic Schaublin 125-CNC retrofit.
Thanks for taking a look. And yeah, that manual sucks 
I have no C107. It jumps from C106 to C108.
C105, I have tried different values, like 5Sec or 1.5Sec. It makes no difference. The drive is not ramping down, it got straight to 0A, and OFF as soon as it is commanded off.
I have no C107. It jumps from C106 to C108.
C105, I have tried different values, like 5Sec or 1.5Sec. It makes no difference. The drive is not ramping down, it got straight to 0A, and OFF as soon as it is commanded off.
Last edit: 11 months 1 week ago by RotarySMP.
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11 months 1 week ago #338656
by cajbr
Replied by cajbr on topic Schaublin 125-CNC retrofit.
Sorry, meant C007. QSB is not selected by default. Default is DC braking. Page 7-78.
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11 months 1 week ago - 11 months 1 week ago #338657
by RotarySMP
Replied by RotarySMP on topic Schaublin 125-CNC retrofit.
Terminal E3 and E2 are unpopulated, but always have been. In the video link above, it was ramping down when I first tested it, and I am pretty sure I found a way to turn that off.
C007 is assigned option 0.
C007 is assigned option 0.
Last edit: 11 months 1 week ago by RotarySMP.
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11 months 1 week ago #338658
by RotarySMP
Replied by RotarySMP on topic Schaublin 125-CNC retrofit.
I tried
C07 --> 2. The VFD no longer started the motor.
C07 --> 1. Same behavior as CO7 - 0.
C07 --> 2. The VFD no longer started the motor.
C07 --> 1. Same behavior as CO7 - 0.
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