Magnescale SmartScale SQ47 Absolute Linear Encoder Instruction Manual
- June 9, 2024
- Magnescale
Table of Contents
SQ47 Installation manual
Ver.５ E Issued Apr. 2021
Service & Parts Dep.
Smart SCALE
SQ47
Installation manual
This manual is a reference material for easily and correctly mounting the SQ47
using a special jig.
Please use this manual when installing the SQ47 for the first time.
Please use this manual together with the instruction manual attached to the
main unit.
MEMO:
SQ47 has a structure in which the scale and the sensor head are separated. The
machine side needs to satisfy the scale mounting tolerance within the range of
effective scale length for the mounting posture of the scale and sensor head.
It is recommended to use the installation tool and positioning jig when
installing.
By using the installation tool and positioning tool, you can easily and
correctly install and check the installation status.
Precautions for installation location
Consider the following points when mounting the scale.
Clearance of sensor head to scale surface
The clearance between the scale surface and the sensor head is kept constant| The clearance between the scale surface and the sensor head is not stable
Roughness of scale mounting surface
Scale mounting standard is flat, no unevenness| The mounting surface is
uneven| Mounting reference surface is curved
---|---|---
Securing the scale contact surface
A guideline for the characteristic frequency of the mounting bracket is 600 Hz
or more * Vibration analysis is also possible with CAD data of bracket
Rigidity of sensor head mounting bracket
A guideline for the characteristic frequency of the mounting bracket is 600 Hz
or more
- Vibration analysis is also possible with CAD data of bracket
Insufficient rigidity
Countermeasure:
- Make the plate thickness to increase the rigidity of the bracket
- Bring the bracket fixing position closer to the sensor head
- Larger fixing screw
How to install the scale
Preparing the scale mounting bracket
Prepare the brackets required for installing the scale.
Installation example using parallel pins
Confirmation of scale and sensor head mounting surface
For the scale mounting surface and sensor head mounting position (head bracket), consider the following allowable mounting values.
Track position of sensor head and scale
Pay attention to the track position of the sensor head and scale (center of
scale and center of head).
If the track position shifts, it will not operate normally.
The center line (CL) tolerance of the scale and head is CL±0.5mm
Installation procedure ① to ⑧
Step①: Preparation of scale bracket
Make sure parallelism of the stop surfaces or parallel pins is within 0.1mm to
MG (Machine guide) and parallelism of the scale mounting surface is within
0.05mm to MG.
Step②: Preparation of sensor head bracket
Make sure parallelism of the sensor head bracket is within 0.1mm to the scale
mounting surface or MG and squareness of the sensor head is within 0.05mm to
the scale mounting surface. Then make sure sensor head mounting surface
position is 16.5±0.5mm from the stop surface or parallel pins. (Thickness of
sensor head:20mm)
Step③: Scale installation
Contact the scale to the stop surfaces or parallel pins and fix by the
screws supplied with the scale unit.
Note: In case of use of other non-supplied screws , the screw head may
project from mounting surface. Do not use a screw with large “R” or no screw
threads at base part as shown below.
Step④: Check the sensor head direction and peel the label off
Make sure that the serial numbers of the sensor head and scale are the same.
Check the direction of the head cable with the label.
Please peel off the label after confirmation, otherwise the clearance
confirmation will not be correct.
Note:
If the combination has different serial numbers, it will not work properly.
Step⑤: Check head bracket (Yaw and roll adjustment)
Adjust yaw and roll angle of a sensor head bracket to confirm within
tolerance.
Sensor head mounting tolerance to the scale surface
Step⑥: Mount the sensor head (Clearance and pitch adjustment) +0.065
Adjust the clearance between the scale surface and the sensor head detecting
part to 0.185 -0.085 mm with the clearance gauge t0.185 (supplied with the
scale unit).
Clearance adjustment and pitch adjustment can be performed at same time by
using a clearance/pitch adjustment spacer SZ26 (sold separately).
Insert the SZ26 between the sensor head and the scale. Then fix the sensor head under condition of light contact at both ends.
Remove the SZ26 and make sure t=0.1mm gauge should enter the gap and
t=0.25mm gauge should not enter the gap.
Step⑦-1: Check the track position (from the front)
-
To check the track position from the front of the scale, prepare an appropriately sized block and spacer.
Spacer of appropriate size Include several sheets with a thickness of 0.1 mm
-
Push the block against the scale base surface and check the gap between the sensor head and the block with a spacer.
Step⑦-2: Check the track position (from the back)
-
To check the track position from the back of the scale, prepare the track position check jig and spacers.
Spacer of appropriate size Include several sheets with a thickness of 0.1 mm
-
Push the jig against the scale base surface and check the gap between the sensor head and the jig with a spacer.
Step⑧: Connect the cable
Remove the waterproof cap and connect the connection cable. (Waterproof cap
5mm across flats)
Before tightening the connector, make sure that the two O-rings have not come
off.
(If the O-ring is dropped, waterproofness will be significantly reduced.)
Place the cable-side connector against the sensor head connector in a straight
line, align the mating key, and insert it.
– Tighten the connector with the specified tightening torque.
– If the connector is not tightened sufficiently, there is a possibility that
coolant may enter through the gap.
– Do not over-tighten the connector with excessive torque, otherwise the
connector may be damaged.
When there is no space to use a torque wrench
Please use the installation tool SZ30 (CH22/23 dedicated socket) that is used
by combining the torque driver and socket adapter.
How to check the scale signal
AC20-B100 Monitoring System
To check scale signal, the AC20-B100 (sold separately) is used.
Need to install the software prior to use. Please refer the AC20 instruction
manual for details.
Needs a special adaptor cable to connect with the scale as well.
AC20-B100 signal checking tool
Adaptor cable
CE35-02 (for Mitsubishi control)
CE36-02 (for Fanuc control)
CE36-02T01(for Yasukawa control)
CE37-02 (for Siemens DQ control)
System requirement
| Item | Environment |
|---|---|
| CPU | Intel Core i3 or higher |
| RAM | 1GB or higher |
| OS | Windows 7 (32bit/64bit) |
Windows 10 (32bit/64bit)
Display| 1080 x 800 pixels or higher
USB| 2.0
AC20-B100 Screen caption (Ver. 1.03.0)
Scale signal (Lissajous waveform), sensor head clearance and alarm status can
be checked by a AC20-B100.
Head clearance condition for overall length can be monitored by the bar graph.
Make sure red indication does not appear.
- Procedure at the starting: All connections with AC20 ⇒ [Power supply switch] ON ⇒ [Measuring switch] ON
- Procedure at the end: [Measuring switch] OFF ⇒ [Power supply switch] OFF ⇒ Remove the scale connection cable
Power is supplied to the scale from AC20. Use two USB cables to prevent power shortage.
AC20 automatically recognizes the scale when it starts, but if it does not, refer to the next page for operation.
When AC20 does not automatically recognize the scale
AC20 may not recognize the connection scale automatically.
- If AC20 version is old ⇒ Install new version
- If the scale model is not a standard product ⇒ Enter the scale model name and let AC20 recognize it If automatic recognition is not performed, the screen for entering the following scale information will appear immediately after the [Power supply switch] is turned on.
On this screen, AC20 recognizes the scale by inputting all the scale model names with a hyphen.
【Procedure】
Installation using the positioning jig
The positioning jig explained here is a jig that correctly reproduces the
position of the mounting bracket of the linear scale (SQ47). Explanations are
given using the stop surfaces type bracket and head bracket.
If this jig is not suitable due to the mechanism and configuration of your
machine, please use it as a reference material to create a jig suitable for
your machine.
*For the dimensional diagrams of positioning jig, refer to page 23 in this manual.
Position of head bracket with respect to the positioning jig
Check the position of the head bracket and the screw tightening direction
by referring to the mounting example below.
Installation procedure ① to ⑨
* This is an example of using the stop surface type bracket for the scale
bracket.
Step ①: Fixing the scale bracket
After temporarily fixing the scale bracket to the machine side, check the
parallelism with the machine guide and then fully tighten it.| Step ②: Fix
the positioning jig
Attach the positioning jig to the appropriate position on the scale bracket.
---|---
Step ③: Installation of head bracket
Temporarily fix the head bracket.| Step ④: Fix the head bracket
Fix the head bracket to the machine side.
Step ⑤: Removal of positioning jig
Remove the screw fixing the head bracket, move the device, and Slide the head
bracket and check the position of the head bracket. After checking, remove the
positioning jig.
Step ⑥: Scale installation
Place the reference mounting surface on the scale side in close contact
with the stop surface of the scale bracket, and fix with the mounting screws
provided.
Press the reference surface of the scale base against the stop surface
Note: In case of use of other non-supplied screws , the screw head may
project from mounting surface. Do not use a screw with large “R” or no screw
threads at base part as shown below.
Installation tool (option)
Clearance and pitching adjustment spacers:
With respect to the scale, the sensor head clearance and positioning in the
pitching direction can be easily done. t=2.0
SZ30 (AM-000-820-1)
CH22/23 dedicated socket:
Effective in places where a torque wrench cannot be used.
A torque control product can be made by combining with a torque
driver.
(reference)
Manufacturer: TOHNICHI Signal type torque driver
RTD120CN
RTD260CN
AC20-B100
Signal checking tool:
You can check the scale signal and clearance after installing the scale. You
can also check the signal when an error occurs.
The AC20 software must be installed on your PC in advance.
A dedicated cable for connecting to the scale must be prepared separately.
Adaptor cable
CE35-02 (for Mitsubishi control)
CE36-02 (for Fanuc control)
CE36-02T01(for Yasukawa control)
CE37-02 (for Siemens DQ control)
Dimensional diagrams of dedicated jig (Reference material)
Track position confirmation jig (from the back)
*This jig is a reference example.
Please refer to this outline drawing and scale outline drawing when creating a
jig suitable for your equipment.
Positioning jig(SQ47 )
*This jig is a reference example.
Please refer to this outline drawing and scale outline drawing when creating a
jig suitable for your equipment.
SZ30 (CH22/23 dedicated socket) processing dimensions
*This jig is a product of TONE Corporation.
Please refer to this processing drawing when you process.
External dimensions (before processing)
Manufacturer: TONE Co., Ltd.
Name: Super long socket
Model name: 3S-12L120
Product No.| Width across flats (mm) S| Dimension (mm) D1| Dimension (mm) D2|
Dimension (mm) L1| Dimension (mm) L| Dimension (mm) d
---|---|---|---|---|---|---
3S-12L120| 12| 16.8| 17.3| 8.0| 120.0| 11.0
Processing dimension
Note:
- This part shall not use materials containing substances specified in RMS-0002: Product Environmental Technology Standard.
- In the rear part after addition, the unindicated corner part shall be C0.05 or less.
- Re-plat after additional machining.
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