Unimotion MSD MG User manual

ASSEMBLY INSTRUCTIONS
MSD MG
MOTOR SIDE DRIVE
WITH A TIMING BELT

In order to improve the products in this catalogue the specications are subject to change without notice.
ASSEMBLY INSTRUCTIONS / MSD MG MOTOR SIDE DRIVE WITH A TIMING BELT
GENERAL INFORMATION
In this assembly instructions the linear unit and electric cylinder or slider, on which the motor side drive MSD will be
mounted, are designated as product. The motor or the gearbox are designated as motor. There is also an abbreviation
MSD used, by which the motor side drive is dened.
USED SYMBOLS
Remark, note
Warning!
Danger!
Risk of coming into contact with power conducting parts! The power supply must be disconnected!
For more information, please refer to the specied documentation
Use different tightening torque as it is presented in the section “Recommended tightening torques”
Table 1: Recommended tightening torques of the screws of strength class 8.8.
RECOMMENDED TIGHTENING TORQUES
Tightening torque (8.8) Thread size
M2 M2,5 M3 M4 M5 M6 M8
MA, max [Nm] 0,4 0,7 1,3 2,8 5,6 9,6 23,0
GENERAL INFORMATION
PERMISSIBLE LOADS
For the values of maximum rotational speed and
maximum torque of the product or the motor side drive
MSD MG, please refer to the product catalogue.
Overloading
The maximum rotational speed and the maximum
torque of the motor must not exceed the limits of the
product or the motor side drive MSD MG. Overloading
the product or MSD can lead to the product or MSD
being damaged.
Pretension of the belt
The excessive pretensioning of the belt may result in
breaking of the product drive shaft or the motor shaft.
Service life of the belt and bearings of the product or
the motor may be signicantly reduced.
Recommended tightening torques of the screws
2

In order to improve the products in this catalogue the specications are subject to change without notice.
ASSEMBLY INSTRUCTIONS / MSD MG MOTOR SIDE DRIVE WITH A TIMING BELT
GENERAL INFORMATION / PARTS LIST
IDENTIFICATION LABEL
Figure 1: Identication label of the motor side drive MSD MG.
Figure 2: Parts of the motor side drive MSD MG.
1 – ID number
2 – Manufacturing date of the motor side drive
3 – Type of the motor side drive (ordering code
without the motor dimensions)
The label must be fully visible and must ensure
compliance with all the instructions it contains.
Damaged or illegible labels must be replaced.
PARTS LIST
1 – Base plate
2 – Base plate screw
3 – Product belt pulley
4 – Product belt pulley set screw
5 – Tensioning plate
6 – Motor screw1
7 – Spring support pin2
8 – Spring
9 – Tensioning plate screw1
10 – Motor belt pulley
11 – Motor belt pulley set screw
12 – Toothed belt
13 – MSD cap
14 – MSD cap screw
15 – Cap plug
1
For the case of using the standard motor side drive and the standard
motor with the tapped mounting holes, there are no motor screws.
Motor is mounted using the tensioning plate screws.
2 Spring support pins are already mounted onto the base plate.
The standard motor side drives MSD MG are compatible
with the standard motor. For the combination with an
individual motor, the non-standard motor side drive is
used.
For the compatibility of the standard motor side drives
MSD MG with standard motors, please refer to the
product catalogue.
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In order to improve the products in this catalogue the specications are subject to change without notice.
ASSEMBLY INSTRUCTIONS / MSD MG MOTOR SIDE DRIVE WITH A TIMING BELT
MOUNTING
STEP 1 AND 2
STEP 3 AND 4
Figure 3: Step 1 and 2.
Figure 4: Step 3 and 4.
MOUNTING
Requirements for personnel
The motor side drive may only be mounted by appropriately
qualied personnel. All qualied personnel must have
read and understood this assembly instructions.
Avoid from collision of the moving components and
the motor side drive (or the motor).
There must never be any collision of the mounted
motor side drive (or the motor) and the moving
components of the product or structure where the
product is installed, otherwise the product or motor
side drive may be damaged.
Risk of coming into contact with power conducting parts!
During the mounting procedure, the power supply should
be disconnected and secured against reconnection!
STEP 1: Mount the base plate 1on the product using
the base plate screws 2. The base plate 1
can be mounted in any orientation (facing up,
right, down or left).
Tighten the base plate screws 2.
STEP 2: Place the product belt pulley 3on the drive
shaft of the product. Ensure that the product
belt pulley 3is completely pushed on the drive
shaft of the product, please see the Figure 3.
Tighten the product belt pulley set screws 4
evenly.
STEP 3: Mount the tensioning plate 5onto the motor
(in desired motor orientation) with the motor
screws 6. Tighten the motor screws 6, as it is
presented in the Table 1.
There should be noted that the spring support pins
7are already mounted onto the base plate 1.
Make sure that the prepared slots for the springs
on the tensioning plate 5are placed on the
opposite side of the motor.
For the case of using the standard motor side
drive and the standard motor with the tapped
mounting holes, there are no motor screws 6. Place
the tensioning plate 5onto the motor without
tightening it.
Tighten the set screw 4with the tightening torque
as follows:
•set screw of size M3: 0,9 Nm,
•set screw of size M5: 5,8 Nm.
For the compatibility of the standard motor side
drives MSD MG with standard motors, please refer
to the product catalogue.
4

In order to improve the products in this catalogue the specications are subject to change without notice.
ASSEMBLY INSTRUCTIONS / MSD MG MOTOR SIDE DRIVE WITH A TIMING BELT
MOUNTING
STEP 4: Place the motor belt pulley 10 on the motor shaft.
Ensure that the motor belt pulley 10 and the motor
shaft are correctly aligned (mounting distance L
between the tensioning plate 5and the outside
surface of the motor belt pulley 10 must be
ensured), see Figure 4 and Table 2.
Tighten the motor belt pulley set screws 11
evenly.
Tighten the set screw 11 with the tightening torque as
follows:
•set screw of size M3: 0,9 Nm,
•set screw of size M5: 5,8 Nm.
VK MG Type L [mm]
(±0,2 mm)
25 T1 13,6
32 T1 13,6
T2 12,8
45 T1 14,9
T2 14,8
60 T1 15,5
T2 19,5
Table 2: Mounting distance L.
STEP 5
Figure 5: Step 5.
STEP 5: Place the springs 8in the prepared slots on the
tensioning plate 5. Mount the tensioning plate 5
together with the springs 8and the motor on the
base plate 1. Ensure that each of the springs is
positioned above the spring support pin 7, please
see the Figure 5, where detailed section view is
presented.
Lightly tighten the tensioning plate screws 9.
Make sure that the movement of the tensioning
plate 5is unrestricted. There must be no visible
gap between the base plate 1and the tensioning
plate 5.
5

In order to improve the products in this catalogue the specications are subject to change without notice.
ASSEMBLY INSTRUCTIONS / MSD MG MOTOR SIDE DRIVE WITH A TIMING BELT
MOUNTING
Figure 7: Rotational alignment of the product and motor
belt pulleys (3and 10).
STEP 7: Mount the MSD cap 13 on the base plate 1using
the MSD cap screws 14 and tighten them.
STEP 6 AND 7
Figure 6: Step 6 and 7.
STEP 6: Push the motor in the direction of the product to
shorten the centre-to-centre distance between
both of the belt pulleys 3and 10.
Place the toothed belt 12 on the anged belt
pulley (3or 10) rst and then on the non-anged
belt pulley (10 or 3). During placing the toothed
belt 12, it is important to ensure the correct
rotational alignment of both belt pulleys 3and 10
(set screws of both pulleys (3and 10) must face
in the same direction, please see the Figure 7).
6

In order to improve the products in this catalogue the specications are subject to change without notice.
ASSEMBLY INSTRUCTIONS / MSD MG MOTOR SIDE DRIVE WITH A TIMING BELT
MOUNTING / INITIAL START-UP / DISMOUNTING
STEP 8 AND 9
Figure 8: Step 8 and 9.
STEP 8: Place the motor side drive (together with the
product and the motor) in a horizontal direction.
Shake the motor (together with the tensioning
plate 5) lightly several times with a hand to ensure
that the tensioning plate 5 ts optimally on the
base plate 1(springs inside the tensioning plate
5will automatically tension the toothed belt
properly). Then tighten the upper tensioning plate
screws 9 rst and then the remaining one (ones)
through the holes on the MSD cap 13.
STEP 9: Insert the cap plugs 15 into the prepared holes on
the MSD cap 13.
Pretension of the belt
The toothed belt must not be additionally tensioned.
Appropriate belt pretension is generated automatically
via the springs placed inside the tensioning plate 5.
The excessive pretensioning of the belt may result in
breaking of the product drive shaft or the motor shaft.
Service life of the belt and bearings of the product or the
motor may be signicantly reduced.
INITIAL START-UP
DISMOUNTING
Before the initial start-up, check if everything is OK:
•electrical wiring,
•mounted elements,
•tightened screws,
•there is no collision of the moving components and the motor side drive (or the motor),
•the motor needs to be supported for the case the product is subjected to the shock loads and vibrations or a massive
motor is used.
To dismount the motor side drive MSD MG properly, look at the mounting procedure.
Dismounting the motor side drive
To dismount the motor side drive MSD MG, take precautions, such as turning off the power supply and prevent the
moving components of the product from dropping, if it is in a vertical or inclined position. It should be also noted, that
during the operating process hot surfaces of the motor, motor side drive MSD and product may occur.
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