Assembly Instructions

Mini Control Kit

ETS.MINI.ESTLSET.01.KO
ETS.MINI.BEAMSET.01.KO

SOROTEC GmbH Tel.: +49 (0) 7227-994255-0

Withig 12 Fax: +49 (0) 7227-994255-9
77836 Rheinmünster E-Mail: sorotec@sorotec.de
Web: www.sorotec.de Version 1.2.2
Assembly Instructions
Mini Control

Technical Data
Main board supply: via power supply
Protection class: III (Safety extra-low voltage)
Max. Operating voltage main board: 36 VDC
Max. Sum of the output currents: 500 mA

Max. Number of axis motors: 4

Control of axis motors: Leadshine power amps

Inputs: 4 x Reference input

1 x Emergency stop
1 x Tool length sensor (Probe)

Outputs: 2 x Transistor output +24 VDC

(Fog / flood cooling, aux), max. 100 mA each
1 x Relay output for spindle potential-free
(FI circuit max 5A) or +24 VDC, max. 100 mA

Machine frame, Sorotec, Alu-Line​​​​​​​ 1 x fan connection +24 VDC, max. 300 mA

Power supply:
Input voltage (primary side): 100 ... 240 VAC (50/60 Hz)
Max. Current consumption (input): 1.9 A
Power consumption: 450 VA
Output voltage (secondary side): 36 VDC
Max. Output current: 3.7 A
Max. Output power: 133.2 W

General safety information

Only operate the controller indoors.

Protect the controller from extreme heat, moisture and aggressive liquids.

Do not switch on the controller if you suspect a fault or if there is obvious damage. In this case, secure the
device against being switched on again until perfect function is ensured. If in doubt, we will be happy to advi-
se you at any time - give us a call.

© 2020 Sorotec GmbH

Reprinting, duplication or translation, even in extracts, is permitted without the written consent of
Sorotec GmbH not permitted. All rights under the law on copyright remain the
Sorotec GmbH expressly reserved.

Technical changes reserved.

Made in Germany.
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Assembly Instructions
Mini Control

Introduction
We thank you for the trust you have shown in us by Attention!
purchasing the Mini Control kit. We recommend rea-
ding these instructions through completely before Only carry out the work if you are familiar with the
starting the installation and then proceeding step by necessary actions and suitable tools are available.
step as described.
Sorotec GmbH assumes no liability for property da-
Usage mage or personal injury that occurs during installa-
tion or operation of the control!
The kit described here is supplied by Sorotec for set-
ting up a three-axis control for CNC machines, espe-
cially of the „Hobby Line“ type. A purpose other than
that mentioned is not covered by the instructions.

Required tools Attention!

Ordinary hand tools such as screwdrivers of various The electrical structure described here works in the
shapes and sizes, wire cutters, etc. should be availa- low voltage range below 60 volts, which is safe for
ble. The following tools are also required: humans. Nevertheless, pay careful attention to pos-
sible sources of error (insulation, grounding, ...) in or-
• Wire stripper der to ensure proper function. Short circuits in parti-
• Crimping pliers for wire end ferrules cular can damage parts of the system or cause fires.

Image 1: The kit

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Assembly Instructions
Mini Control

Scope of delivery
1 12

Housing Mini Control 1 Spacer nut M3 x 10 12

13
2
Oval head screw
14
Stepper motor 3 DIN 7981 2,9 x 9
output stage
14

3 Cylinderhead screw
16
DIN 7981 M3 x 6
Motherboard 1
15

Cylinderhead screw
8
4 DIN 7985 M3 x 6

Power supply 36 V 1
16

Cylinderhead screw
1
DIN 912 M5 x 25
5

Earth connection cable 1 17

Fan screw 5 x 16 4

Fan set 1 Washer

Ø M3 18 8
Ø M5 19 1
7

Tooth lock washer

Main switch 1 Ø M3 20 22
Ø M5 21 4

22
Cable gland Nut M5 2
M12 8 6
M16 9 3
23

10 Functional earth sticker 1

Cable gland
M16 EMV 24
3
Control line 2 x 0,5 mm² 1,5
11
25
Rubber foot 4
Blade Receptacle 2

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Assembly Instructions
Mini Control

Preparation of the housing

Base
For this construction phase you will need: #

1 Housing base 1

8 Cylinderhead screw M3 x 6 14

8 Tooth lock washer M3 20

8 Washer M3 18

8 Spacer nut M3 12

4 Rubber foot 11

• Glue the four feet 11 into the corners of the

floor 1 . Lateral distance approx. 5 mm. Image 2: Housing base

• Provide the eight bottom holes with spacer

sleeves 12 . To do this, place washers 18 under
the screw heads 14 and tooth lock washers 20
zwischen Distanzhülsen und Bodenblech bei
etween the spacer sleeves and the base plate
(see images 2 and 3).

Image 3: Spacer nuts

Cover
For this construction phase you will need: #

1 Housing cover 1

1 Fan set 6

4 Fan screw 17

• Mount the fan 6 with the fan screws 17 and

the fan cover on the housing cover 1 , as
shown in Image 4.

Note
The fan should blow into the case. The direction of
flow is marked with an arrow on the side of the fan. Image 4: Housing cover with fan

• Place the filter fleece on the fan cover and

attach the filter cover.

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Assembly Instructions
Mini Control

Front
For this construction phase you will need: #

1 Housing front 1

1 Main switch 7

1 Front cover adapter module

• Insert the main switch 7 into the rectangular

opening on the front of the housing. The switch
engages and does not need to be screwed down.

• Place the 3D-printed front cover that you

received with the adapter module into the recess
in the front of the housing and temporarily secure Image 5: Housing front
the part with an adhesive strip to prevent it from
slipping out. Please refer image 5.

Note
The cover is not part of the scope of delivery. It
may be difficult to determine the correct orienta-
tion. However, when the housing is assembled la-
ter, the correct position becomes obvious and can
be corrected quickly if necessary.

Back
Image 6: Always fit unused screw connections to seal all
openings.
For this construction phase you will need: #

1 Housing back 1 1
16
6 Cable gland M12 8
22
3 Cable gland M16 9 21
19
3 Cable gland M16 EMV 10
21
1 Cylinderhead screw 16 22
1 Washer M5 19 21
21
4 Tooth lock washer M5 21

2 Nut M5 22 1

• Remove the paint inside and outside 2 mm Image 7: Functional grounding screw (FE) inside / outside
around the holes for the metal screw connections
and the functional earth screw (FE) and mount
the cable glands 8 , 9 and 10 as shown in
image 6.
Attention!
• Assemble the functional grounding screw (FE)
from the screw 16 , nuts 22 , tooth lock Make sure there is good electrical contact between
washers 21 and washers 19 . See image 7. the earthed screw connections and the housing!

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Assembly Instructions
Mini Control

Preparation of motherboard
Adaptermodul montieren
For this construction phase you will need: #

1 Motherboard 3

1 Adapter module
1 Connection cable
8 Cylinderhead screw M3 x 6 15

4 Spacer nuts M3 12

pre-assembled housing base

Image 8: Motherboard, the prepared space for the adapter
Note module at the bottom right.
The adapter module and the matching connec-
tion cable depend on the control software you are
using and are not part of the scope of delivery.

Both Estlcam and Beamicon2 can be downloaded

from the manufacturers‘ websites.

• Mount the four spacer sleeves 12 for the

adapter module with cylinder head screws 15 .
See image 8.

• Screw the adapter module into place with

cylinder head screws 15 . See image 9.

• Connect the adapter module and the

motherboard with the connection cable.

Mounting the motherboard Image 9: Board with adapter module, here for Benezan / Be-
amicon. In front a module for Estlcam for comparison.
For this construction phase you will need: #

pre-assembled motherboard
pre-assembled housing base
8 Cylinderhead screw M3 x 6 14

• Mount the prepared main board with cylinder

head screws 14 on the base. See image 10.

Image 10: Housing base with mounted motherboard

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Assembly Instructions
Mini Control

Final assembly
Front and base
For this construction phase you will need: #

pre-assembled housing base

pre-assembled housing front
5 Tooth lock washer M3 20

5 Oval head screw 13

• First mount the housing front with two screws

13 and tooth lock washers 20 on the XLR
socket for the power supply on the motherboard.
Do not fully tighten the screws yet.
Image 11: Housing base with mounted front
• Now screw the front with three more screws
13 and tooth lock washers 20 to the base and
the sides of the housing base.

• Tighten the screws on the socket.

Connect the main switch to the terminals labeled

„Power Switch“.

Cabling
For this construction phase you will need: #

partially assembled control

pre-assembled housing back
Cable according to circuit diagram
3 Tooth lock washer M3 20

3 Oval head screw 13

2 Blade Receptacle 25

Note
The cabling with a loose rear panel is described Image 12: Insertion of the cable shielding in the EMC screw
below. In principle, the rear panel can of course
also be installed before the cables are connected. • EMC cable gland
The terminals of the connections are then more The EMC cable glands made of metal
difficult to reach. should ensure a good electrically conductive
connection between the shielding braid of
• Prepare the cables by stripping approx. 10 cm the motor connection cables and the earthed
each and fitting the stripped ends with wire end housing ground.
sleeves.
Mount the motor cables as shown in image 12
• Guide the cables through the respective cable by placing the suitably shortened shielding braid
glands. Do not tighten the screw connection yet. back on the outside of the plastic inner part and
screwing it with the union nut.

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Assembly Instructions
Mini Control
• Connect the cables as described in the circuit
diagram.

• Mount the back of the housing with screws 13

and tooth lock washers 20 .

• Push the cables into position in the feed-

throughs and tighten the screw connections.

• Use the flat receptacles to connect the

emergency stop switch 25 .

Image 13: Ready-connected cables for stepper motors, refe-

rence switches and emergency stop.

Option Switchbox
The switch box is optionally available in the Soro-
tec shop (EZB.MINI.SBR.01), which can be used to
switch 230 V externally via a 24 V signal. Useful e.g.
for operating minimum quantity lubrication or chip ex-
traction.

The switch box is connected to the +24 V and Aux 1

or +24 V and Aux 2 terminals on the main board using
the control cable supplied with 2 x 0.5 mm² 24 . See
image 15.

The box can also be used for the spindle (AMB / Ma-
fell), here the jumper is plugged into the board and
the switch box is clamped to K2 (+24 V) and GND at
the spindle output. Image 14: Option Switchbox

Attention!
The sum of all currents at the terminals Aux 1, Aux
2, fan and spindle output must not exceed 500 mA.
Higher currents can damage the motherboard. See
also “Technical data” on page 2.

It is therefore advisable to supply a possibly exis-

ting spindle fan with its own power supply unit.
Image 15: The Aux 1 and Aux 2 terminals on the motherboard

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Assembly Instructions
Mini Control

Preparation of the power amplifiers

Before installation, the output stages must be adap-
ted to the stepper motors used. To do this, the eight
DIP switches must be set correctly.

Example:
For the motor set with 4.2 A rated current offered
by Sorotec for the Hobby Line and for the 542 pow-
er amplifiers from Leadshine the following position
of the DIP switches is correct:

1 2 3 4 5 6 7 8
On Off Off Off Off Off On On

We strongly recommend that you set swit-

ches 1 to 3 only as specified, otherwise the
motors could overheat.

However, this switch position is only an example.

If other motors are used, the setting must be made
using the tables printed on the output stages (see
Image 16).

The first three DIP switches determine the current

with which the respective motor is operated. The last
four switches in the series regulate the „resolution“:
This means the number of steps into which a single
Image 16: DIP switch setting for current and resolution
motor revolution is broken down.

The stepper motors used perform 200 steps of 1.8

° per revolution. With the DIP switch setting shown,
the output stage divides these full steps into 8 micro
steps each. This then results in 1600 steps per revo-
lution of the motor. With a spindle pitch of 10 mm /
revolution, one microstep theoretically corresponds
to a travel distance of 0.00625 mm.

Install power amplifiers

• Remove the screw terminal connectors that
are not required.

• Plug the prepared power amplifiers into

positions one to three on the motherboard. See
image 17.

Image 17: Attached power amplifiers

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Assembly Instructions
Mini Control

Cover
For this construction phase you will need: #

partially assembled control

pre-assembled housing cover
6 Tooth lock washer M3 20

6 Oval head screw 13

• Connect the fan to the terminal labeled „Fan“

on the motherboard. See image 18.

• Close the housing and mount the cover with

screws 13 and tooth lock washers 20 .

Earth connection cable

For this construction phase you will need: #

partially assembled control Image 18: Fan connected. Other cables have been left out for
1 Earth connection cable 5
a better overview.

1 Functional earth sticker 23

• Affix the sticker 23 above the ground screw

connection.

• Screw the ring cable lug 5 of the earthing

connection cable between the washer of the
toothed washer of the earthing screw connection.
Also lay all grounding cables coming from
the machine here. Make sure it is tight.

Image 19: Ground cable screwed to functional ground (FE)

Connection
• Plug the earth connection cable into a properly
earthed socket.

• Connect the control computer to the control.

• Establish the power supply with the external

power supply unit.

The control is now ready for use and can be put into
operation. Image 20: Fully assembled mini control with power supply

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