FUJI CONTROLS CHECK MAN CM-5 User manual

LOAD CHECKING DEVICE
CHECK MAN
Model : Ｃ Ｍ － ５
Instruction manual
(Ver. 4)
Make sure to read this manual before using this unit. Then,
keep it in a safe location. The specifications of the system may
be changed without prior notice.
FUJI CONTROLS CO., LTD.
1-5-6, Iidabashi, Chiyoda-ku, Tokyo 102-0072
Phone: [phone] Fax: [phone]

Thank you for purchasing our CHECK MAN/CM-5.
This instruction manual describes the basic functions and precautions in simple terms, so that even
people who are unfamiliar with this system can learn how to use it safely. Before using this unit,
read this manual thoroughly in order to get the maximum performance from the CHECK
MAN/CM-5. However, since this unit may be used in a wide variety of situations, this instruction
manual may not cover every case. If you are unclear about any detail, please feel free to contact us.
Make sure to store this manual in a handy place for future reference.
In this manual, the following types of messages are used to warn of potential
hazards:
DANGER If you disregard this information, there is a likelihood of death or at least serious
injury.
WARNING If you disregard this information, there is a possibility of death and a likelihood of
serious personal injury and/or damage to property.
CAUTION If you disregard this information, there is a possibility of injury and a likelihood of
damage to the equipment or other property.
NOTE: This contains special information that should be understood to operate the machine
effectively.
DANGER The specified power is 100 VAC, 50/60 Hz. Never connect the unit to any other
voltage, since it is likely to cause a fire.
WARNING This system is designed and manufactured to perform press fitting operations. If you
use this system for any other purpose, the functions and performance of the system
are not guaranteed and it may be dangerous.
WARNING Do not place any voltage across the output relay terminals. If you do, the machine
will be damaged and the warranty will be void.
WARNING Never touch the terminal block on the back of the main housing. Otherwise, you may
get an electrical shock.
CAUTION Never modify, disassemble, or repair this system. If the machine needs to be serviced,
please contact us. We will not be responsible for malfunctions or other problems
caused by unauthorized service or repairs.
CAUTION Always make sure to disconnect the power supply before touching the terminal block,
since you can get an electrical shock and damage the system.
CAUTION Use this machine at ambient temperatures between 0 and 50 ℃. Do not place the
system in direct sunlight and or near hot air. Use of the machine in conditions other
than those specified may cause a malfunction.
CAUTION This system is designed on the assumption that it will be used inside Japan. If you use
the system outside Japan, please make sure you observe all of the safety regulations in
the country of use.
CAUTION If you loan this machine to someone else, make sure to attach this instruction manual
to the machine.
CHECK MAN/CM-5 features
●The CHECK MAN/CM-5 senses the load imposed by the press in press fitting operations and
compares it with the upper and lower limits that were specified by the operator. It decides whether the
press fitted workpiece is acceptable (GO)or unacceptable, because of too little or too much pressure
(HIGH-NG, LOW-NG). The result of the decision is shown on the digital load display and by the NG

"Indicator." It will also use the relay contacts to provide an external signal whether the press fitting was
good or not.
●The CM-5 can store 8 pairs of upper and lower limit values in memory. To change workpiece types
easily, just enter the values for each type before starting the operation. This will help prevent setting
errors. This machine also has a "Prohibiting changes" function. This feature allows only the assigned
operator to change the upper and lower limit settings and registration patterns. And, it also prevents
accidents caused by an unauthorized changes in the preset values.
APPLICATIONS
PRESS FITTING: ①Motor gears and pulleys ②VTR parts ③CD parts ④FDD parts ⑤HDD parts
⑥CD-ROM parts ⑦DVD parts ⑧MO parts ⑨Flywheels ⑩Ball seals on ABS (Anti-lock Brake
System)assemblies
CAULKING: ①Speaker terminals ②Coaxial connectors ③Switches ④Ball point pen tips ⑤Motor
housings
TESTS AND EXPERIMENTS: ①Material destruction tests (ceramics, clean metal, etc.) ② The feel of
switches, and keyboards ③Strength of solder joint (capacitors, resistors, ICs, etc.)
INSTALLATION EXAMPLES
Installed on a pneumatic press Installed on a hand press

When opening the shipping package
The following items should have been packed in the box. Please open the box as soon as possible and
make sure all of the items were packed inside. Make sure there are no missing items. Make sure that none
of the items is damaged.
The housing for the measurement device and the load cell* were adjusted as a pair before delivery. They
have the same serial number on the red stickers attached to the both components (see the photos below).
Make sure that the numbers on these stickers are the same.
＊LOAD CELL: Load cell means Strain Gauge Transducer.
Location of the serial number
□Measurement device housing (Serial No. )
□Load cell (Serial No. )
□Instruction manual
●If you ordered optional items :
□Load measurement complete sensor
□Evaluation mechanism parts Load cell
□Others ( ) Back of the measurement
device housing
TABLE OF CONTENTS PAGE
Name and function of each part on the measurement device housing ...................................1
Operating chart ........................................................................................................................4
External connection terminals and their functions .................................................................7
Connection examples ..............................................................................................................10
Connection procedures ...........................................................................................................12
Entering and changing each setting using the membrane switches .....................................13
Prohibiting changes ...........................................................................................................15
Changing and storing upper and lower comparison values ..............................................17
Method for selecting a pair of upper and lower limits ....................................................20
Setting the power supply frequency .................................................................................20
Method for selecting the measurement mode ...................................................................22
Maintenance ...........................................................................................................................24
Installation precautions
If a malfunction occurs
Wiring checks
Checking the location of the load measurement complete sensor
Troubleshooting ......................................................................................................................25
CHECK MAN and load cell specifications ..........................................................................27
Measurement device dimension drawings ............................................................................28
Load cell measurement drawings ..........................................................................................28
Circuit examples for connecting a timer box .......................................................................30

−1−
判定点
下限設定
上限設定
リ セッ ト
ＣＭ －５
H I GO L O
P. NO
電 源
kN
Ｃ Ｈ Ｅ Ｃ Ｋ ＭＡ Ｎ
４７６ ５３２
１ ９ １ １ １ ２ １ ３ １ ０
１ ４
８
Name and function of each part on the measurement device housing
①Power switch
This is a toggle switch. Flip the lever up to turn the power ON, and flip it down to turn OFF the power.
After turning ON the power, all of the LEDs will be lit for about three seconds. During this three seconds
the system will check the condition of the internal microcomputer RAM and ROM. If they are operating
properly, the load display will show (" ", " " or " " depending on the
model). This means the system is ready to start measuring. If a ROM error is detected, an error number
will be displayed. If this happens, see the "Troubleshooting" section on page 25.
②Digital load display (red LED characters)
The digital load display will show the maximum load imposed on the load cell during a certain period of
time. That maximum load is referred to as the "peak value." Normally the period of time runs from the
start of the measurement operation until the system receives the load measurement complete signal*.
The system will update this peak value continuously during this time (only positive values will be
displayed). So, if the current load is larger than the peak value already being displayed, the display will
be updated. The display will be refreshed either 12.5 times (at 50 Hz)or 15 times (at 60 Hz)per
second. However, the system is constantly measuring the actual value with an analog circuit. Since the
special, internal sample and hold circuit detects and stores the peak load whenever it occurs, the system
can always measure the actual peak load accurately, even though the digital display is still showing the
previous peak value. When the constant load measurement mode is selected (see "Method for selecting
the measurement mode" on page 22)and the load measurement complete signal is received, the system
will take the highest analog value stored in the special analog sample and hold circuit* and convert it
into a digital reading, which is then displayed as the peak value. This is how the system is able to
accurately detect the highest load experienced, without being influenced by the digital display update
interval. This digital display can show numbers up to . If it detects a load greater than the
display can handle, the readout will show " ".
After the load measurement complete signal is received, the display will continue to display the peak load
reading until the next reset (start)signal is received.
NOTE: The display details will vary, depending on the model. The decimal point position is
different for each model (see the "Digital load display" section on page 27).

−2−
＊Load measurement complete signal: After the system receives this signal, it will stop measuring loads
and compare the measured value with the preset upper and lower limits. At the same time, the system will
let you know the result of the comparison using the display and by outputting a signal on the relay
contacts.
＊Special analog sample and hold circuit: In the usual digital sampling and display method, if the
sampling rate is less than 3,500 times per second while press fitting, the system will take a relatively long
time to convert the analog value into a digital one. If the load changes during this conversion, then even
though the system can measure the change, it cannot display the new reading right away. The special
analog sample and hold circuit in these units overcomes this problem. It is constantly measuring the load,
even while the system is converting the most recent value from analog to digital. In the peak load
measurement mode (method used to display the peak load during a certain period of time), the system
stores new load values throughout the interval as analog voltages, in preparation for the next conversion
of the peak value. In the constant measurement mode (method for displaying changes in the load as they
happen), the system will store the current measured load, and simply display the current load when the
load measurement complete signal is input. Then the system will compare these values with the specified
limits.
Since this system is equipped with a high-speed analog sample and hold circuit, it can accurately identify
the peak load and measure the constantly changing load with precision regardless of the digital display
operation.
③Load upper-limit digital display (green LED characters)
This display shows the upper limit that will be used as the criterion for evaluating the actual load.
④Load lower-limit digital display (green LED characters)
This display shows the lower limit that will be used as the criterion for evaluating the actual load.
＊When entering the upper or lower limits, or when any function is selected, the names of the items to
select will be displayed in these displays, in alphabetical order.
⑤GO indicator (green LED)
After the system receives a load measurement complete signal, if the load shown on the digital load
display is between the specified upper and lower limits, this LED indicator will light.
Upper limit value ≧Measured load value ≧Lower limit value
At the same time, terminals ⑪and ⑫ ("a" contacts: normally open)on the terminal block (on the
back)will be shorted together until the next reset (start)signal is input or until the system is manually
reset.
⑥HIGH-NG indicator (red LED)
When the system has received a load measurement complete signal, if the measured load (displayed on
the digital load display)exceeds the preset upper limit, this LED indicator will light.
Upper limit value ＜Measured load value
At the same time, terminals ⑨and ⑩ ("a" contacts: normally open)on the terminal block (on the
back)will be shorted together until the next reset (start)signal is input or until the system is manually
reset.
⑦LOW-NG indicator (red LED)
When the system has received a load measurement complete signal, if the measured load (displayed on
the digital load display)is less than the preset lower limit, this LED indicator will light.

−3−
Measured load value ＜Lower limit value
At the same time, terminals ⑬and ⑭ ("a" contacts: normally open)on the terminal block (on the
back)will be shorted together until the next reset (start)signal is input or until the system is manually
reset.
⑧Judgment point indicator for the load measurement complete signal (red LED)
This indicator will flash while the load measurement complete signal sensor is waiting for a signal
(terminals ③and ④on the terminal block on the back, "b" contact: normally closed).
＊This LED indicator will be steadily lit when the sensor is activated (when terminals ③and ④
are open, which occurs when the load measurement complete signal is input).
⑨Manual reset push button
Press this button to clear the display, initialize the judgment signals, and perform an automatic zero of the
machine. If a reset (start)signal is present (terminals ①and ②are shorted), this button will not
function. When you reset the system manually, make sure not to leave any pressure applied to the load
cell by the press. However, you can press this button while a jig is installed on the load cell.
After turning ON the power, all of the LEDs will light for about three seconds. During this three seconds
the system will check the condition of the internal microcomputer RAM and ROM. If the digital load
display shows any characters other than zeroes or dashes(), press this button.
(If any letters are displayed, a ROM error has occurred. If this happens, see the "Troubleshooting" section
on page 25.)
⑩Pair number display (red LED)
Eight pairs of user set upper and lower limits can be stored in memory. This display shows the number of
the currently selected pair (item numbers ③and ④in the illustration on the previous page).
＊For details about selecting a different pair, see the section, "Method for selecting a pair of upper and
lower limits," on page 20.)
⑪,⑫,⑬,⑭These are membrane switches used for various settings, changing specified values, and
to select functions.
Specify and change the settings by using the four keys in different combinations. This system employs a
double-key safety function* method that requires you to press two keys simultaneously to enter the
operation mode. (For details about each of the settings and changes, see the respective sections on pages
13 to 23.)
⑪ENTER key
In the descriptions from here on, this key is just referred to as .
⑫MODE key
In the descriptions from here on, this key is just referred to as .
⑬SHIFT key
In the descriptions from here on, this key is just referred to as .
⑭INCREMENT key
In the descriptions from here on, this key is just referred to as .
＊Double-key safety function: Press both the and , the and , or the and keys at the same
time to enter the operation mode. Make sure to press the or key first in the examples above.

−4−
Operating Chart
After receiving a reset (start)signal, the CM-5 will measure load values continuously until a load
measurement complete signal is received. Then it will compare the results with the user specified
limits.
Press operation CM signals CM comparison signal output
Start one press operation Reset signal
cycle entered
The press ram is lowered
The press begins to compress
the workpiece
The press fit operation is
complete
Load measurement Comparison signal
complete signal output
entered
The press ram is raised
HI-NG GO Ｌ O-NG
One press operation cycle is
complete
Comparisons and results
To make comparisons and present the results, both a "Reset signal" and a "Load measurement
complete signal" are required.
The following types of signals should be supplied: ①No-voltage contact signal (relay contact, output
contact from a programmable controller I/O module, or micro-switch contacts); or ②Voltage signal
(open collector signals such as a photo switch, or output from a programmable controller I/O module).
1. Reset signal
A reset signal is created when terminals ①and ②are shorted, ("a" type contact)or when the voltage
drops to logical 0.
NOTE: Make sure to supply a reset signal after starting a cycle and at least 0.2 seconds before

−5−
starting a pressing operation.
2. Load measurement complete signal
A load measurement complete signal is created when terminals ③and ④are opened, ("b" type contact)
or the voltage level rises to logical 1. The system responds to the rising edge when the shorted terminals
are opened (when the level changes from "0" to "1").
●Logical "0": 0 to 1.5 V ●Logical "1": 3.5 to 5 V ●Input current: 2 mA or
less
NOTE: Use "b" type contacts for this signal. Since the system uses the change from a short
circuit to an open (ON to OFF)as a timing signal, you should make sure that the
terminals are shorted and then opened after the measurement is complete. When a reset
signal is input, the contacts for the load measurement complete signal should be shorted.
ON
O F F
ON
O F F
Press fit operation
Position of
the press
is lowered
T h e p r e s s r a m T h e p a r t
ram is raised
The press
complete
cycle is
The press
a press cycle
Start of
C M
reset signal
measurement
Press load
complete
signal
Just before completing the part pressing.
(The signal should occur approx. 0.3 to 0.5 mm before the bottom is reached.)
pre s s in g
b eg i ns
Pressing
complete

−6−
Press output control, such as a caulking operation
the press
Position of
a press cycle pressing
The press ram
is lowered
Start of The part
begins complete
Pressing The press
ram is raised cycle is
reset signal
C M
starting a cycle up to the completion of a cycle.
ON
OFF
ON
OFF
complete
measurement
signal
Press load
complete
The press
the ram lift signal.
The reset signal " " can be input any time, from 10 msec. after The signal is turned OFF by

Lead wire terminals
Metal connector for
load cell cable
Terminals are isolated.and
are connected insid
e
and
of the device.
Terminals
９
１２ ３ ８７６５４
２ ３
(There is no continuity between these terminals.)
Note:
Note:
Power supply
terminals for
Comparison signals
sensors
End Power
Ground
Reset
To terminal
１ １ １ ２ １ ３ １ ４ １ ５
１ ６
COM
ＧＯＨＩ ＬＯ ５ ＶＤＣ
ＣＯ Ｍ ＣＯ Ｍ ＣＯ Ｍ
ａ ａ ａ
ＣＯ ＭＣＯ Ｍ
１ ０ １ ４ １ ２
１ ５
１ ６１ ０
device
Terminal block on the
back of the measurement
−7−
External connection terminals and their functions
Terminals
①－②: Reset (start) signal terminals
This signal is used to clear the display values, release the judgment signals, and initiate the automatic zero
function. Enter the signal after starting a press cycle. The signal can be entered any time, from 10 msec.
after starting the cycle until the cycle is complete. Since the system regards the change from an open to a
short circuit (OFF to ON)as a valid signal, make sure that the signal does not drop prematurely. Either
a no-voltage contact or an open collector signal are acceptable.
③－④－⑮: Load measurement complete signal terminals
Terminal ⑮is a 5 VDC + power source that is used for a photo sensor. When you will be using
no-voltage contacts, make sure to connect only terminals ③and ④. An open collector can also be used.
The system regards the change from a short to an open circuit (ON to OFF)as a valid timing input
signal. Before entering a reset signal, make sure to short the load measurement complete terminals. You
can check the current status of these terminals by watching the flickering of the judgment point indicator
on the front panel of the measuring device.

−8−
CAUTION Terminals ①,②,③,④and ⑮must only be connected to a 5 VDC circuit. Be
careful not to connect them to 100 VAC. (The internal circuits may catch fire.)
⑤: Manual reset terminal
The manual reset terminal is connected to the reset switch on the front side of the measurement device. It
is connected internally to terminal ①.
⑥: Ground terminal
Connect only to a class 3 or better ground. Never share the ground for this system with other power
source devices or electric motors. (Doing so may cause electric noise.)
⑦－⑧: Power source
These terminals are connected to the power switch on the front.
⑨－⑩: HIGH-NG signal output terminals ("a" type contact, continuous signal)
When there is an upper limit failure (HIGH-NG), these terminals will be shorted. They will be opened
again when the next cycle starts or when the manual reset button is pressed.
Upper limit value ＜Measured load value
Contact rating: 120 VAC/0.5A, 28 VDC/1A (resistance load)
⑪－⑫: GO signal output terminals ("a" type contact, continuous signal)
When the evaluation is OK (GO), these terminals will be shorted. They will be opened again when the
next cycle starts or when the manual reset button is pressed.
Upper limit value ≧Measured load value ≧Lower limit value
Contact rating: 120 VAC/0.5A, 28 VDC/1A (resistance load)
⑬－⑭: LOW-NG signal output terminals ("a" type contact, continuous signal)
When there is a lower limit failure (LOW-NG), these terminals will be shorted. They will be opened
again when the next cycle starts or when the manual reset button is pressed.
Measured load value ＜Lower limit value
Contact rating: 120 VAC/0.5 A, 28 VDC/1 A (resistance load)
⑮－⑯: Sensor power supply
These are the DC power terminals used for a photo sensor. Terminal ⑯is connected to the reset switch
on the front of this measurement device.
Power specifications: 5 VDC ±10 %, MAX 25 mA

HIGH-NG
LOW-NG
Press
Reset signal
complete signal
Load measurement
signal
signal
signal
Cycle start
One cycle
10 msec. or more is complete
Any time before one cycle
Cycle start
Output delay: max 100 msec.
Make sure it is ON before
the reset signal is input
Make sure it is ON before
the reset signal is input
operating time. The load will stop being read when the load measurement complete signal is input.
There may be a delay in the output of the comparison signal, depending on the comparison circuit and relay
Either a GO, HIGH-NG or LOW-NG signal will be output as the result of the comparison.
Note:
G O
U p
D o w n
O F F
O N
O F F
O N
O F F
O N
O F F
O N
O F F
O N
−9−

−10 −
trigger input signel for this system
W
h
e
n
u
s
i
n
g
t
h
e
p
r
e
s
s
r
a
m
m
o
v
e
m
e
n
t
a
s
To terminals and
1 2
trigger input signal for this system
W
h
e
n
u
s
i
n
g
t
h
e
p
r
e
s
s
s
t
a
r
t
s
i
g
n
a
l
a
s
To terminals and
Push button switch Relay to raise the press
Relay to start
the press
Noise suppresser
start the press
Solenoid valve to
Noise suppresser
1 2
Example using a contact swich
To terminals and
Rod
freely
Move
43
E
x
a
m
p
l
e
u
s
i
n
g
a
p
h
o
t
o
s
e
n
s
o
r
To terminals ,and
abjusted head
Micrometer
Light shielding
plate
Photo sensor
3 4 1 5
Connection examples
1. Reset (start) signal
The system uses the movement of the press
ram to send the reset (start)signal for the
CM-5 measurement device. Connect the
micro-switch "b" type contacts to terminals
①and ②on the back of the CM
measurement device.
＊Be careful to adjust it so that the
micro-switch does not chatter when the
press returns to the upper position,
otherwise the load reading will be "0."
The system uses the start signal from the
solenoid valve for lowering the press as a
reset (start)signal for the CM-5
measurement device.
The contact should be designed so that the
start signal level will not drop, even if the
operator presses the push button twice in one
cycle. Make sure to connect a noise
suppressing capacitor to the solenoid valve.
(See the circuit on the left.)
2. The load measurement complete signal (Examples of press fitting operations)
Especially when using the CM-5 for press fitting, we recommend that you use a sensor with high
repeatability. Adjust the sensor so that it is triggered approximately 0.3 mm before the pressure ram
completion point.
The drawing on the left shows an example
using a contact switch that has ceramic parts
and gold contacts. Make sure to install a rod
whose movement is linked with the press.
Design the mechanism so that the rod can
move up to prevent damage to the contact
switch if the press malfunctions and doesn't
stop, as shown in the figure on the left.
The example on the left shows a micrometer
adjusted head, so that it can be finely
adjusted. The light shielding plate which
moves together with the press is used to
trigger the photo switch that is installed on
the tip of the micrometer adjusted head.
Make sure to use a 5 VDC photo switch.
Example: Model"EE-SX470" made by
OMRON Corporation

−11 −
Reset End Ground
109 12 13 14
5VDC
LOGOHI
11
Comparison signals
P
o
w
e
r
s
u
p
p
l
y
terminals for
sensors
12345678
Terminal block on the
measurement device
15 16
T
To terminals and
W
h
e
n
u
s
i
n
g
a
t
i
m
e
r
Power
aaa COM COM COM
COM COM
3 4
E
x
a
m
p
l
e
u
s
i
n
g
a
o
n
e
w
a
y
m
i
c
r
o
-
s
w
i
t
c
h
To terminals and
34
:Example of a buzzer sounded by an NG signal
HI-NG
LO-NG
109 12 13 14
5VDC
LOGOHI
11
12345678
Battery(maximum 24 VDC)
Buzzer
Comparison signals
Power supply
terminals for
sensors
Reset End Ground
Power source
Power source
Buzzer
15 16
Terminal block on the
measurement device
,
9
14
13
10
100 VAC
Power
a a a COM COM COM
COM COM
Hydraulic oil pump
100VAC 50/60Hz
CHECK MAN contact
I M
P
HI-NG
LO-NG
M
Th-Ry
X
:Example using an NG signal to the machine
,
9
14
13
10
T h- R y
M
X
M
3. Load measurement complete signal (Examples for caulking)
Shown on the left is an example for checking
a caulking load using the timer "b" contacts
from the press timer for press fitting
operations. Please make sure to design the
circuit so that the timer contact is reset at the
upper end of the press' stroke. Make sure to
install noise suppressers across the coil of the
solenoid valve that drives the press, and the
timer contacts used for driving the press. No
noise suppresser is required between
terminals ③and ④.
This is useful for checking a caulking load
and to construct a destructive test system
using a press stop. Enter a signal while the
press is rising.
＊Make sure you only use this arrangement
in the peak load mode.
4. Use the comparison results for outputting signals
This circuit sounds a buzzer to let the
operator know that an NG occurred. Make
sure to use a buzzer that can handle 20 mA
of current, or less.
Example: Model"EB2136" made by
Matsushita Electric Works, Ltd.
This circuit can be used to stop the
movement of the hydraulic press instantly
when an NG occurs, or in an emergency.

−12 −
Lead wire
Put a screwdriver tip into
the terminal and press in the spring.
５ ～ ６ mm
１ . ２ ５ ｓ ｑ
(solder the exposed end)
Twist the strands together.
H
o
w
t
o
p
r
e
r
a
r
e
the lead wire How to connect lead wires
Connection procedures
1. Installing a load cell
①Install the load cell on the shank on the press, or on the center of the jig (see the dimension drawings
on pages 28 and 29). When installing a load cell that was designed to be mounted on the ram shank
(003, 03, 10U, 20U), make sure to secure it at two points, so that the diagonally shaded area (the loaded
face)shown in the dimension drawings contacts the press shank properly.
・Do not pull on the load cell cable. When securing the cable, allow enough cable length so that it
still has some slack when the press is at bottom dead center.
・Although the load cell is sealed, be careful not to pour organic solvents such as a thinner, water, or
machine oil directly on it.
②Connect the load cell cable to the 5P connector on the back of the CM-5 housing, and lock it securely
in place.
2. When installing a jig (a load cell that is designed to be mounted on a ram shank)
Insert the upper part of the jig into the ram shank designed for the load cell. Tighten the two bolts evenly
while being careful to align each side perfectly parallel.
3. CM-5 measurement device installation
There are two holes on the bottom of the CM-5 housing (see the "Measurement device dimension
drawings" on page 28). Use these holes for attach the CM-5 to a mounting plate. Do not insert screws
that go deeper than 10 mm inside the CM-5 housing.
NOTE:If a screw is inserted deeper than 10 mm, it will contact the components inside of the case
and damage the device.
4. Reset (start) signal
Referring to the figures below, connect the lead wire for the start signal to terminals ①and ②(reset).
(Make sure that the terminals are shorted when the press starts moving.)
CAUTION 1. Before connecting the lead wire, be sure to unplug the power cord at the wall.
2. Make sure that the wire you are connecting does not contact any other
terminals.
5. Load measurement complete signal (sensor END)
Connect the lead wire from the load measurement complete signal sensor to terminals ③and ④ (end).
(See the "Load measurement complete signal terminals" on page 7.)
6. Power plug
Plug the power cord into a standard wall outlet. (100 VAC, 50/60 Hz)
CAUTION When making connections to the terminal block, be careful not to mis-wire the
100 VAC circuit (GO, NG contact terminal). Mis-wiring may destroy the internal
circuits.

−13 −
Entering and changing each setting using the membrane switches
First, enter or change the settings using the double-key function. Use the four membrane keys in the
bottom row (､ ､ and )on the front panel of the CM-5. The items that you can specify
(such as the names of data settings)will be displayed in alphabetical order in the "Load
lower-limit digital display." (In the descriptions below, the phrase "Load lower-limit digital
display" becomes just the "Lower-limit display.")The value for each of the current settings will be
displayed in the "Digital load display."
For details about each procedure for entering and changing the settings, see
the following pages. This page describes only an outline of the general
procedure.
1. Display of the user settable items
In the setting mode, each of the user settable item names will be displayed in the Lower-limit display, in
alphabetical order, and the current value for that item will be displayed in the Digital load display. The
decimal point will flash. (When selecting a different pair of user specified upper and lower limits for use
in making comparisons, the decimal point in the limit pair number display will flash. You can change the
setting in the display whose decimal point is flashing.)
The "Digital load display" displays numbers and letters. When it displays four digits, a decimal point will
flash next to the digit which can be specified at that time. On the following pages, the use of each digit is
described as follows.
Digital load display →
↑ ↑ ↑ ↑
Notation in this
manual →１０
３
１０
２
１０
１
１０
０
2. Initial setting
Press the key while holding down the key. The Lower-limit display will show the word "
." This means you have to select a setting mode. There are four modes, " ", " ", " ", and
" ". The table below describes each. (" " is selected when the system is delivered.)
MODE FUNCTIONS
①Modify and store upper and lower limit comparison values.
②Select a different pair of upper and lower limit values.
①Load calibration mode.
①Select a measurement mode (peak value mode or end value mode).
②Enter the power supply frequency(50 or 60 Hz).
①Prohibit making entries or changes to the settings. (You can still view the values
of the pairs of upper and lower limits.)
①Mode: 01
After pressing the and keys, the Lower-limit display will show " ". This is the display used
for selecting a pair of limits. The pair display shows the number of the currently selected limit pair (1 to
8), and the decimal point will be flashing in the display. In this situation, you can change the upper and
lower limit values that are assigned to the pair number currently being displayed. (See pages 17 to 21.)
②Mode: 02
One of two types of load calibrations can be selected: actual value calibration and equal value calibration.

−14 −
To perform an equal value calibration, you need the latest data for the load cell that you will be using. If
your load cell is not new, its actual data characteristics may be different from the initial data
characteristics that it had when it was delivered from the factory, depending on its condition and how
long it has been used. Fresh data is required to calibrate loads correctly.
③Mode: 03
Each time you press the key, the "Lower-limit display" will display the next user settable data name
from the following list: " → → → → "
Call up the data name that you want to specify data for, and then enter or change the settings. (See pages
20 and 23.)
Then, turn to the "Change and select each set value" selection from the following pages. These pages
describe the operating procedures for the items below.
●Prohibiting changes
●Changing and storing upper and lower limit comparison values
●Method for selecting a pair of upper and lower limits
●Setting the power source frequency (IF THE UNIT WILL BE USED WITH A 60 HZ POWER
SUPPLY YOU MUST READ THIS SECTION.)
●Method for selecting the measurement mode
CAUTION If your power company supplies you with 60 Hz power, make sure to change
power frequency setting from 50 to 60. The device is set to 50 Hz at delivery.

−15 −
Prohibiting changes
Prohibiting changes: This mode prevents the upper and lower values, and the
selected pair of limit values from being changed by pressing the keys.
1. Press the and keys. (Press the key, first.) ....... During this operation, you cannot
measure loads.
Digital load display
Lower-limit display
In this mode, it is possible to change the (" " refers to the mode)
current setting. The decimal point next to
the 10
0
digit will flash.
2. Press the key.
Each time you press the key, the numbers shown in the load display will cycle in the following order:
"→ → → → " When " " is showing, release the key.
Digital load display
Lower-limit display
This mode prohibits any changes in the settings.
The decimal point next to the 10
0
digit will flash.
3. Press the key. ...... Now, you can measure loads.
Digital load display
←Upper-limit display
←Lower-limit display
←Pair number display
4. That completes this setting operation. No one will be able to change the upper and lower limit
values, or the selected limit pair by pressing a key.
REFERENCES
The changes prohibited mode still allows you to view the value of each of the upper and lower
limits, for each of the eight pairs, by following the procedure below. (You cannot change the
values.)
①Press and hold the and keys for approximately one second. (Press the key, first.)
②Each time you press the key, the pair number will change in the following order:
"０→１→２→３→４→５→６→７→８→９→０".
(The pair number display shows the number of the currently selected pair.)

−16 −
③Display the pair number whose values you want to check.
④Then, press the key repeatedly to display the limit type in the lower-limit display. The limit types
will be displayed in the following order:
"( ）→（ ）→（ ）→（ ）"
When " " or " " is displayed, the respective upper or lower value for that pair will be
displayed in the digital load display.
To change the upper and lower values of a pair, or to change which pair is specified for use, select the
" " mode in step 2 on the previous page. (When you want to change the settings on the following
pages, first make sure that you have selected mode " ".)