MJ632
/ Instruction Manual / Bedienungsanleitung
Read all the instructions in the manual carefully before use and strictly follow them.
Keep the manual for future references.
Lesen Sie die ganze Anleitung vor dem Betrieb aufmerksam durch und folgen Sie beim
Betrieb des Geräs den Anweisungen. Bewahren Sie diese Bedienungsanleitung zum
späteren Nachlesen gri bereit auf.
[For U.S.A. and Canada]
THIS CLASS A DIGITAL DEVICE COMPLIES WITH PART15 OF THE FCC RULES AND
THE CANADIAN ICES-003. OPERATION IS SUBJECT TO THE FOLLOWING TWO
CONDITIONS.
(1) THIS DEVICE MAY NOT CAUSE HARMFUL INTERFERENCE, AND
(2) THIS DEVICE MUST ACCEPT ANY INTERFERENCE RECEIVED, INCLUDING
INTERFERENCE THAT MAY CAUSE UNDERSIGNED OPERATION.
CET APPAREIL NUMÉRIQUE DE LA CLASSE A EST CONFORME À LA NORME
NMB-003 DU CANADA.
(J) (1)
MJ632
(2) (J)
MJ632
(J) 1
MJ632
2 (J)
MJ632
(J) 3
MJ632
Tw Tw Tw Tw Tw +N 50 ns
A
B
1/4
ALARM
4 (J)
MJ632
(J) 5
MJ632
6 (J)
MJ632
(J) 7
MJ632
246810
13579
12 14 16 18 20
11 13 15 17 19
/A
A
+
5 V
+
5 V
+
5 V0 V
ALARM /ALARM
B
/B /
0 V0 V
HONDA
2468
10
13579
12 14 16 18 20
11 13 15 17 19
8 (J)
MJ632
MJ632
+5 V
0 V
(J) 9
MJ632
A, B, , ALARM
A, /B, /, /ALARM
±
∗∗
10 (J)
MJ632
(E) (1)
MJ632
Safety Precautions
Magnescale Co., Ltd. products are designed in full consideration of safety. However,
improper handling during operation or installation is dangerous and may lead to re,
electric shock or other accidents resulting in serious injury or death. In addition, these
actions may also worsen machine performance.
erefore, be sure to observe the following safety precautions in order to prevent these
types of accidents, and to read these “Safety Precautions” before operating, installing,
maintaining, inspecting, repairing or otherwise working on this unit.
Warning Indication Meanings
e following indications are used throughout this manual, and their contents should be
understood before reading the text.
Warning Failure to observe these precautions may lead to re, electric shock
or other accidents resulting in serious injury or death.
Caution
Failure to observe these precautions may lead to electric shock
or other accidents resulting in injury or damage to surrounding
objects.
Symbols requiring attention
CAUTION ELECTRICAL
SHOCK FINGER
JAM
Symbols prohibiting actions
DO NOT
DISASSEMBLE
Symbols specifying actions
UNPLUGGING
Warning Failing to follow the precaution items given below may
lead to severeinjury or death.
• Do not use this unit with voltages other than the speci ed supply voltage as
this may result in re or electric shock.
• Do not perform installation work with wet hands as this may result in electric
shock.
• Do not disassemble or modify the unit as this may result in injury or damage
the internal circuits.
Caution Failing to follow the precaution items given below may
lead to injury or damage to surrounding objects.
• Be sure to check the machine and device conditions to ensure work safety
before working on the machine.
•
Be sure to cut o the power supply and other sources of drive power before
installing the working on the machine. Failure to do so may result in re or
accidents.
• When turning on the power supply, etc. to operate the machine, take care not
to catch your ngers in peripheral machines and devices.
(2) (E)
MJ632
Contents
1. Notes to Users .................................................................. 1
1-1. General Precautions .................................................................................................. 1
1-2. Precautions .................................................................................................................. 1
1-3. Installation .................................................................................................................. 1
2. Introduction .................................................................... 2
2-1. System Con guration ............................................................................................... 2
2-2. Model Name ............................................................................................................... 2
2-3. Main Features .............................................................................................................2
3. Function Description ...................................................... 3
3-1. Output Signals ............................................................................................................3
3-2. AB Quadrature Signal Minimum Phase Di erence Time and
Maximum Response Speed ...................................................................................... 3
3-3. Movement Direction and Output Phase Relationship ......................................... 4
3-4. Reference Point ...........................................................................................................4
3-5. Alarm Signals .............................................................................................................5
4. Operation ......................................................................... 6
4-1. Cable Extension .......................................................................................................... 6
4-2. Power Supply...............................................................................................................6
4-3. Mounting the Interpolator ....................................................................................... 6
4-4. Output Connector ..................................................................................................... 7
4-5. Output Cable Speci cations ..................................................................................... 8
5. Speci cations .................................................................. 9
(E) 1
MJ632
1. Notes to Users
1-1. General Precautions
When using Magnescale Co., Ltd. products, observe the following general precautions
along with those given speci cally in this manual to ensure proper use of the products.
• Before and during operations, be sure to check that our products function properly.
• Provide adequate safety measures to prevent damages in case our products should
develop malfunctions.
• Use outside indicated speci cations or purposes and modi cation of our products will
void any warranty of the functions and performance as speci ed of our products.
• When using our products in combination with other equipment, the functions and
performances as noted in this manual may not be attained, depending on operating
and environmental conditions.
1-2. Precautions
When installing the MJ632, observe the following precautions to prevent noise interference
from other equipment.
• Use noise-preventive mechanisms for the relays, solenoids and motors connected to
the MJ632.
• Take preventive steps when noise from other equipment may disturb the power supply
line to the units.
• Shield the output cable correctly according to the instruction manual.
Be sure to ground the MJ632 with an earth wire or by mounting it on the machine with
screws.
1-3. Installation
• Use the MJ632 in the temperature range of 0 to 45 °C. Do not expose it to sunlight or
sources of heat. A well-ventilated place is preferable.
• Separately route the head cable and output cable from the power line.
• When installing the Interpolator in a place where it may be exposed to water splashes,
protect it from water by providing a cover or other protection.
2 (E)
MJ632
2. Introduction
is product is an interpolator specially for the PL101 head unit.
Combining with the PL101 head unit enables output of AB quadrature signals at a
resolution of 0.2 to 10 μm.
2-1. System Con guration
Fig. 2-1
2-2. Model Name
MJ632-
<Output connector>
C : Honda Tsushin 20-pin
B : Unterminated end
2-3. Main Features
• Operation uses a single 4.75 to 5.25 V DC power supply.
• Reference point signals are output in synchronization with the AB quadrature signals.
• e output signals are AB quadrature signals, reference point signals, and alarm
signals, and the signals are output by a voltage-di erential line driver compliant with
EIA-422.
PL 101 Series
Head Unit MJ632- Control device
AB quadrature signals
Reference point signals
Alarm signals
<Resolution and polarity>
B 0.2 μm
C 0.5 μ m
D 1. 0 μm
E 2.0 μm
F 5.0 μm
G 10 .0 μm
I 0.2 μm
J 0.5 μm
K 1.0 μm
L 2.0 μm
M 5.0 μm
N 10 .0 μm
<AB quadrature signal minimum
phase di erence time>
B 10 0 ns
C 150 ns
D 200 ns
E 250 ns
F 300 ns
G 500 ns
H 2. 5 μm
I 25 μm
(E) 3
MJ632
3. Function Description
3-1. Output Signals
e MJ632 outputs the AB quadrature signals, reference point signals, and alarm signals
as shown in Fig. 3-1.
Tw Tw Tw Tw Tw +N 50 ns
A
B
1/4 reference
point signals
ALARM
N: Fluctuation due to travel speed
Resolution settings
Minimum phase difference time: Tw: 100 ns (When set to a minimum phase difference time of 100 ns)
Travel direction
reversal
High impedance
Fig. 3-1
• e PL101 head unit travel is detected in 50 ns increments and is output at a phase
di erence time proportional to the amount traveled. e phase di erence time changes
in integral multiples of 50 ns
• When alarm signals are detected, the alarm signals become active, and AB quadrature
signals change to high impedance.
3-2. AB Quadrature Signal Minimum Phase Di erence Time
and Maximum Response Speed
e AB quadrature signal minimum phase di erence time changes based on the travel
speed of the head unit. When a minimum phase di erence time that is less than the AB
quadrature signal minimum phase di erence time of your model is reached, a speed
alarm is output. (See “2-2. Model Name”.) e speed just before the speed alarm is output
is the maximum response speed.
Maximum response speed (m/s)
Number of
division Resolution Minimum phase di erence time
100 ns 150 ns 200 ns 250 ns 300 ns 500 ns 2.5 μs 25 μs
4000 0.2 μm 1.4 m/s 0.9 m/s 0.7 m/s 0.6 m/s 0.5 m/s 0.3 m/s 0.04 m/s —
1600 0.5 μm 3.5 m/s 2.3 m/s 1.8 m/s 1.5 m/s 1.2 m/s 0.7 m/s 0.15 m/s —
800 1.0 μm 7 m/s 4.6 m/s 3.7 m/s 3.0 m/s 2.5 m/s 1.5 m/s 0.3 m/s 0.02 m/s
400 2.0 μm 14 m/s 9.3 m/s 7.5 m/s 6.0 m/s 5.0 m/s 3.0 m/s 0.6 m/s 0.06 m/s
160 5.0 μm 35 m/s 23 m/s 18 m/s 15 m/s 12.5 m/s 7.5 m/s 1.5 m/s 0.15 m/s
80 10 μm 70 m/s 46 m/s 37 m/s 30 m/s 25 m/s 15 m/s 3.0 m/s 0.3 m/s
In models where the AB quadrature signal minimum phase di erence time is 25 μs, the
resolutions of 0.2 μm and 0.5 μm are not available.
4 (E)
MJ632
3-3. Movement Direction and Output Phase Relationship
e phase relationship between AB quadrature signals is shown in the table below. e
phase relationship varies depending on the travel direction and polarity.
e polarity can be con rmed based on the model name of your product. (See “2-2. Model
Name”.)
When the head unit was moved in the right direction (see gure below):
Polarity Phase leading
Signal A is ahead
Signal B is ahead
Right directionLeft direction
Magnescale mark
Fig. 3-2
Output Signals
When polarity is positive ( ) and travel direction is right
Signal B
Signal A
Fig. 3-3
3-4. Reference Point
e MJ632 converts the reference point signals detected by the head unit to a reference
point signals in synchronization with the AB quadrature signals and outputs them.
In the reference point output signal width, the synchronized reference point signals are
output while both the signal A and signal B are at the Hi level.
(See Fig. 3-1.)
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