proudly presenting a Maho MH700 retrofit ..

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15 Feb 2010 18:30 #1915 by grd246507
Hi ulda

Thankyou for your reply.

Yes would very much like to see your configuration files.
I do have the logic documentation pages, but the machine was a not running when I obtained it so I have never run the spindle.

Think I can see a lot of what is occurring from the spindle speed table and the diagram of the three gear selection motors
rotating CCW each has three micro-switches representing nine bits in total, for inputs when the motors are driven into the correct gear position for the speed selected they trigger three outputs that switch off each of the 3 three selection motors in that sequence, please correct me if I am wrong.

I was originally going to use just an inverter only for spindle, but I like the look of the gearbox and the spindle power advantages it gives, the two speed motor may only be used in the high range (2800rpm) because it only covers 31,40,50rpm speeds at (1400rpm) and the motor control and switching on / off /direction, all done by the inverter in place of the old mass of reversing control contactors.

Regards

Gary

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22 Sep 2010 09:33 #4279 by pirke
I am currently in the proces of retrofitting a maho 400c.
But i am still getting all the information...

Does your maho 700 has a indramat 3trm2 servo amp?


Peter

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22 Sep 2010 12:28 #4280 by Gregor
I'm currently doing a lathe that has the 3TRM2 drive. Just got the servos up and running properly this morning. Maybe I can answer some of your questions?

Gregor

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22 Sep 2010 14:30 #4283 by ulda
Yes, my mh700 has this 3trm2 (1 amp for 3 servos) and an additional one for the B/C Axis.
It has +/- 10V input for velocity - works fine with me.
How can we help?

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24 Sep 2010 17:17 #4315 by pirke
Basically i don't know how to connect everything to ma cards, because i don't know what most connectors are.
Some things may be obvious but i would like to be sure before i mess something up completely.

if you can tell me how to connect everything that would be super, i am a complete newby to servo amps and servo's so any information is welcome.

Ther 3trm2 has the following connectors:
Top row from left to right:
Bb1 - ?
Bb2 - ?

JF - ?
JF - ?
RF - ?
<ground logo> - ?
OVM - ?
E303 (tacho 3) - ?
<ground logo> - ?
OVM - ?
E302 - ?
E301 - ?

JF - ?
JF - ?
RF - ?
<ground logo> - ?
OVM - ?
E203 (tacho 2) - ?
<ground logo> - ?
OVM - ?
E202 - ?
E201 - ?

JF - ?
JF - ?
RF - ?
<ground logo> - ?
OVM - ?
E103 (tacho 1) - ?
<ground logo> - ?
OVM - ?
E102 - ?
E101 - ?

Sy3 - ?
Sy2 - ?
Sy1 - ?


Lower row:


Power row:
U1 - power
A1 - power
V1 - power
U2 - power
A2 - power
V2 - power
U3 - power
A3 - power
V3 - power
Attachments:

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28 Sep 2010 16:19 - 28 Sep 2010 16:32 #4390 by ulda
Hi everybody
I mailed this to peter, but here it is for everybody to use:
I had to find my wiring plans, Sorry for the delay.

This are the pinouts for the Connectors L1 to L7:

L1,    L2,    L3 (controller signal input)
101    201    302  JF+: Enable pulse +
102    202    301   JF-: Enable pulse -
RF : Enable control
GND
OVM
E103 (Tacho): Tacho input against 0VM
GND
E101   E201   E301 : Velocity setvalue (against 0Vm)
E102   E202   E302 : Velocity setvalue (against 0Vm)
(E101/E102 are selected internally, same for E201/E202 and E301/E302)
0VM			

L4 (controller ready relay)
Bb2: Relais contact: internal 24V current ok
Bb1:

L5 (syncronisation)
Sy1: Synchronisation for axis 1
Sy2: Synchronisation for axis 2
Sy3: Synchronisation for axis 3
(Sy1-Sy3 are bridged internally to L6 sy)

L6 (contoller voltage regulator)
R  	Phase for control voltage (380V)
S  	Phase for control voltage
24Vl+ 	controller switch power
0Vl 	base for switch power
+15V 	controller setvalue power
0Vm  	base for setvalue power
GND
-15V  	controller setvalue power
sy 	syncronization signal

L7 (motor voltage control)
A1: Motor 1 out (against N Impedance / GND of controller)
A2: Motor 2 out (against N Impedance / GND of controller)
A3: Motor 3 out (against N Impedance / GND of controller)
U1: Phase U for controller 1/Motor1 (from impedance)
V1: Phase V for controller 1/Motor1 (from impedance)
U2: Phase U for controller 2/Motor2 (from impedance)
V2: Phase V for controller 2/Motor2 (from impedance)
U3: Phase U for controller 3/Motor3 (from impedance)
V3: Phase V for controller 3/Motor3 (from impedance)

On the Picture you can see my wiring:
* JF+ = JF- = RF are switched to Ul+ by a relais for "enable axis" (one signal
for all 3 axis)
* JF+ and JF- can be used for limit switches input.

* OVM/E103(Tacho)/GND go to the tacho generator of the axis' motor

* 0VM/E302/GND go to my velocity output signal DA ± 10V (I wired together two
lines of the cable)
* alternaviely you can use +15V / -15V / 0Vm for driving these pins.
Last edit: 28 Sep 2010 16:32 by ulda.

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