• No part of this manual may be reproduced in any form.
• All specifications and designs are subject to change without notice.
The export of this product is subject to the authorization of the government of the country
from where the product is exported.
In this manual we have tried as much as possible to describe all the various matters.
However, we cannot describe all the matters which must not be done, or which cannot be
done, because there are so many possibilities.
Therefore, matters which are not especially described as possible in this manual should be
regarded as ”impossible”.
This manual contains the program names or device names of other companies, some of
which are registered trademarks of respective owners. However, these names are not
followed by or in the main body.
This manual describes the electrical and structural specifications required for connecting the CNC control unit to a machine tool. The manual outlines the components commonly used for FANUC CNC control units, as shown in the configuration diagram in Chapter 2, and supplies additional information on using these components. Refer to individual manuals for the detailed specifications of each model.
The models covered by this manual, and their abbreviations, are :
The following figure shows the configuration of the electrical system of the machine tool with which this control is used. This manual describes how to connect the units illustrated in this diagram. The machine tool body, machine operator’s panel, power magnetic circuit, and sensor/actuator are specific to the machine tool and are the builder’s responsibility. This manual does not cover the internal connection of these units to the machine tool. The numbers in Darentheses shown in the
Note 1 Refer to the “FANUC I/O Unit Model A Connecting Maintenance Manual (B-61 813E)“. Note 2
Refer to the following manuals: ‘FANUC AC Servo Motor a Series Descriptions (R65142E)“. l FANUC AC Spindle Motor a Series Descriptions (B-651 52E)“. ‘FANUC CONTROL MOTOR a Series Descriptions (B-651 62E)”
The peripheral units, such as the control unit and CRT/MIX, have been
designed on the assumption that they are housed in closed cabinets. In this manual “cabinet” refers to the following:
REQUIREMENTS OF l
CNC
0
The environmental conditions when installing these cabinets shall
conform to the following table. Section 3.4 describes the installation and design conditions of a cabinet satisfying these conditions.
Change in
temperature
Vibration
Cabinet manufactured by the machine tool builder for housing the control unit or peripheral units;
Cabinet for housing the flexible turnkey system provided by
FANUC ;
Operation pendant, manufactured by the machine tool builder, for housing the CRT/MD1 unit or operator’s panel.
Equivalent to the above.
45O
Room temperature 1
Relative humidity L
1 In operation:
1 Normal machine shoe environment
Environment
I 1 and/or organic solvent is relatively high.)
In operation
In storage or
lYC/minute max. Normal
Temporary (within 1 month)
uhe environment must be considered if the cabinets are in a location where the density of dust, coolant,
transportation
0.5G or less
0” to
-20" to 60"
I 75% or less
of less
95%
32
IiSTALLATlON
CONDITION OF
SERVO UNIT
33
PbWER CAPACITY
?
Room temperature
Relative humidity
Vibration
Environment
In operation
In storage or transportation 95% RH or less (no condensation)
I
0.5 G or less
The unit shall not bricant or cutting chips.
be exposed direct to cutting oil, lu-
o”c to +55”C
-20°C to +6O”C
The power capacity of the CNC control unit, which in this section means
the specification required for the power supply, is obtained by adding the power capacity of the control section and the power capacity of the servo section. The power capacity of the control section includes the power capacity of the control unit, CRT/MDI, I/O unit, and operator’s panel interface.
Power capacity of the control section
Power capacity the servo
of
section
When
power supply Al is used and AC out-
put terminals CP2 and CP3 are not used. When power supply Al is used and AC out-
put terminals CP2 and CP3 are When power supply BI is used and AC out-
put terminals CP2 and CP3 are not used. When power supply BI is used and AC out-
put terminals CP2 and CP3 are
Depends on seNo motor type.
used.
used.
0.3kVA
0.8kVA
0.5kVA
I I
1 .OkVA
I I
1
,
5
3. INSTALLATION . 842443uo2
3.4 DESIGN AND
INSTALLATION CONDITIONS OF THE
MACHINE TOOL MAGNETIC CABINET
When a cabinet is designed, it must satisfy the environmental conditions described in Section 3.1. In addition, the magnetic interference on the CRT screen, noise resistance, and maintenance requirements must be considered. The cabinet design must meet the following conditions :
.
The cabinet must be fully closed. The cabinet must be designed to prevent the entry of airborne
dust,coolant,and organic solvent. Cabinets that let in air may be designed for the servo amplifier and
servo transformer provided that they :
0
Use an air filter on the air inlet ;
0
Place the ventilating fan so that it does not blow air directly toward
the unit; 0 Control the air flow so that no dust or coolant enters the air outlet The cabinet must be designed to maintain a difference in temperature
of 10°C or less between the air in the cabinet and the outside air when the temperature in the cabinet increases. See Section 3.5 for the details on thermal design of the cabinet.
A closed cabinet must be equipped with a fan to circulate the air within. The fan must be adjusted so that the air moves at 0.5 m/set along the surface of each installed unit. CAUTION : If the air blows directly from the fan to the unit, dust easily adheres to the unit. This may cause the unit to fail.
For the air to move easily, a clearance of 100 mm is required between each unit and the wall of the cabinet.
Packing materials must be used for the cable port and the door in order to seal the cabinet. Because the CRT unit uses a voltage of approximately 11 kV, airborne dust gathers easily. If the cabinet is insufficiently sealed, dust passes through the gap and adheres to the unit. This may cause the insulation of the unit to deteriorate.
The CRT/MIX unit must be installed in a location where coolant cannot be poured directly on it. The unit does have a dust-proof front panel.
Noise must be minimized. As the machine and the CNC unit are reduced in size, the parts that generate noise may be placed near noise-sensitive parts in the magnet& cabinet. The CNC unit is built to protect it from external noise. Cabinet design to minimize noise generation and to prevent it from being transmitted to the CNC unit is necessary. See section 3.7 for details of noise elimination/management.
0
The units must be installed or arranged in the cabinet so that they are easy to inspect and maintain.
- 6 -
&-62443E/o2 3. INSTALlATlON
The CRT screen can be distorted by magnetic interference. Arranging magnetic sources must be done with care. If magnetic sources (such as transformers, fan motors, electromagnetic contactors, solenoids, and relays) are located near the CRT display, they frequently distort the display screen. To prevent this, the CRT display and the magnetic sources generally must be kept
300 mm apart. If the CRT display and the magnetic sources are not
300 mm apart, the screen distortion may be suppressed by changing
the direction in which the magnetic sources are installed. The magnetic intensity is not constant, and it is often increased by magnetic interference from multiple magnetic sources interacting with each other. As a result, simply keeping the CRT and the magnetic sources 300 mm apart may not be enough to prevent the distortion.
If they cannot be kept apart, or if the CRT screen remains distorted
despite the distance, cover the screen with a magnetic shield. The installation conditions of the I/O unit must be satisfied.
To obtain good ventilation in the module, the I/O unit must be installed
in the direction shown in the following figure. Clearances of 100 mm
or more both above and below the I/O unit are required for wiring and ventilation. Equipment radiating too much heat must not be put below the I/O unit.
6ottom
l/O base unit
H (No screws or
extend from the bottom of this
unit.)
protrusions shall
7
3. INSTALLATION .
3.5 THERMALDESIGN
OFTHECABINET
3.5.1
Temperature Rise within the Cabinet
&-62443E/O2
purpose of the thermal design of the cabinet is to limit the difference
The
in temperature between the air in the cabinet and the outside air to 10°C or less .when the temperature in the cabinet increases.
The internal air temperature of the cabinet increases when the units and
parts installed in the cabinet generate heat. Since the generated heat is radiated from the surface of the cabinet, the temperature of the air in the cabinet and the outside air balance at certain heat levels. If the amount of heat.generated is constant, the larger the surface area of the cabinet, the less the internal temperature rises. The thermal design of the cabinet refers to calculating the heat generated in the cabinet, evaluating the surface area of the cabinet, and enlarging that surface area by installing heat exchangers in the cabinet, if necessary. Such a design method is described in the following subsections.
The
cooling capacity of a cabinet made of sheet metal is generally 6 W/“C per lm2 surface area, that is, when the 6W heat source is contained in a cabinet having a surface area of 1 mz, the temperature of the air in the cabinet rises by l°C. In this case the surface area of the cabinet refers to the area useful in cooling, that is, the area obtained by subtracting the area of the cabinet touching the floor from the total surface area of the cabinet. There are two preconditions : The air in the cabinet must be circuited by the fun, and the temperature of the air in the cabinet must be almost
constantThe following expression must then be satisfied to limit the difference in temperature between the air in the cabinet and the outside air to 10°C or less when the temperature in the cabinet rises:
Internal heat loss P m (
6w/m2 l
For example, a cabinet having a surface area of 4m2 has a cooling capacity
of 24W/“C. To limit the internal temperature increase to 10°C under these
conditions, the internal heat must not exceed 240W. If the actual internal
heat is 32OW, however, the temperature in the cabinet rises by 13’C or
more. When this happens, the cooling capacity of the cabinet must be
improved using the heat exchanger described next.
“C] X surface area S[m2] X lO[OC] of rise in temperature
3.5.2
Exchanger
If the temperature rise cannot be limited to 10°C by the cooling capacity
Heat Cooling by
of the cabinet, a heat exchanger must be added. The heat exchanger
forcibly applies the air from both the inside and outside of the cabinet to
the cooling fin to obtain effective cooling. The heat exchanger enlarges
the surface area. Section 3.7 explains five heat exchangers supplied by
FANUC. Select one of these according to the application.
If cooling fin A is used for the cabinet, the total cooling capacity of a
cabinet having a surface area of 4 rn? in the example above is improved as follows :
6W/m* l “C X 4m2 + 9.1WI°C= 33.1Wl°C
The calculated value verifies that even if the internal heat is 320 W, the
temperature rise can be limited to less than 10°C. See Section 3.6 for installing the heat exchanger.
562443Em2
3.53
Heat Loss of Each Unit
Name Heat
Basic unit (2 slots) Basic unit (4 slots) Basic unit (6 slots) Basic unit (8 slots) Main CPU board
9.5” color LCD/MD1 14” color CRT/MD1 7ow Operator’s panel connection unit
I
Machine operator’s panel 24W
interface unit AIFOIA, AIFOI B AID32A, AID328
AID1 6C, AID1 60
AlD32E, AlD32F
3. INSTAUATION
loss 60W 60W Power supply Al 80W Power supply BI 80W Power supply BI 2ow 15w l5W
Remarks
Power supply Al
15w
W
15w
14W For small type
CRT/MD1 and standard type CRT/MD1
4ow
3ow
1.2w
1.2W + 0.23W x number of
points
ON
0.1 W + 0.21 W x number of ON points
0.1 W + 0.23W x number of ON points
Refer to FANUC CONTROL MOTOR a Series Descriptions (E345162E) for heat loss of servo amplifier.
- 9 -
3. INSTALLATION .
562443uo2
36
iSTALLING THE HEAT EXCHANGER
3.6.1 Cooling Fin A/B/C
Table 3.6 lists the heat exchangers.Cooling fins A, B and C are not provided with a fan. Note that a fan motor is required for any of these cooling fins when it is used as a heat exchanger.
Table 3.6 List of Heat Exchangers
Name
Cooling fin A Cooling fin B A02B-O053-K304 Cooling fin C A02B-O0533<305 Heat pipe type
heat exchanger
I Heat exchanger for
CRT/MD1 unit
The
cooling fin is shown in Fig. 3.6.1 (a).
Ordering
specification
A02B-0053-K303 9.1 W/“C
A02B-0094-C901
AO2BqO603<401
Cooling capacity
196x90x1OOOmm
1o.1w/oc
25.2W/“C
9.OW/OC 226xl32x415mm
5.OWl”C
444 x 90 x 650mm 560 x 90 x 970mm
590 x 86 x 480mm
Size
Viewed from cabinet mounting side
Fig.3.6.l(a) External view of cooling fin
10
B-62443WO2
3. INSTALlATlON
It is installed in a cabinet made by the machine tool builder.
Cooling fin
Inside
fiow
Cabinet
ou
air
Fig.3.6.1 (b) Internal view of cooling fin
The cooling fin can be installed in two ways, as shown in Fig.3.6.l(b). The following lists the general precautions to be observed when using the cooling fins :
The fans are not included with the cooling fin. They should be provided by the machine tool builder.
Bring in the outside air from the bottom and exhaust the hot air from the top.
The inside air may flow from top to bottom or bottom to top. However, generally decide the direction as follows :
0
Bring in the air near high heat loss components.
0 Exhaust the air toward the most important components to be
cooled.
For the cooling fin to display the specified cooling capacity, the air
inside the cooling fins must flow at a velocity of 2.5 m/set or greater.
(velocity of air flow measurement)
Set the slit to the intake side and
measure the velocity at the slit.
l Generally, install the cooling fins to the door. But be sure that the door
does not bend when installing the cooling fin. The cooling fins are equipped with packing.
- 11 -
3. INSTALLATION .
562443uo2
1 External dimensions 1
Fan mounting
Mounting metal for cooling fins (sheet met- al about 3mm thick).
AM4 mounting screw cooling fins
4
PANEL CUT DRAWING
;
for
Fig.3.6.l(c)
II I I I
0
s;
cooling fins. Its height is 20mm)
(Mounting diagram (example)
0
k
/l/l I
I I+
g
cv
:
ILuLl :I
164 %
w
External dimension and mounting method of cooling fin A (0254053-K303)
Note1
E
Note2 Note3 Weight
Fan motor, mounting plate for fan motor and mounting metal for cooling fins are not attached to the cooling fins. So, prepare them at the machine tool builder. Use two fan motors with about 5OW power.
: 6.5kg
1
- 12 -
B42443uo2
3. INSTALLATION
(Make a hole 5 dia. for
fan motor)
t
Panel cut drawing
c
External dimensions
Mounting stud for cooling fins
Note1
Note2 Note3 Weight
Fan motor and mounting plate are not attached to the cooling fins. So, prepare them, at the machine tool builder. Use four fan motors with about 20W power.
: 7.5kg
Mounting diagram (example)
.
Fig.3.6.l(d) External dimension and mounting method of cooling fin 6 (A02B405WC304)
- 13 -
3. INSTALLATION .
BG2443E/O2
0
H
P
&M4 Mounti--
m olor
6-6 dia. hole or M5 stud bolt
Panel cut drawing 1
I
I
c
External dimensions
.
P
Terminal block for fan motor
HE-04
(Attached to the
__
._
cooling fins. Its height is 20mm)
548 I
.
External shape of
cooling fins
Note1 Fan motor ar Id mounting plate for fan motor ar
not attached machine tool
Note2 Use two fan Note3 Weight
unting stud for cooling
MO
/(Attached
to the cooling fins)
Mounting plate
for fan motor
an motor /
F
Ezkg hole
1 Mounting diagram (example)
to the cooling fins. Prepare them
bl uilder.
motors‘ with about 40W power.
: 13.5kg
fins
1
+-a
Cooling fin
S
1
l e
at the
Fig.3.6.l(e) External dimension and mounting method of cooling fin C (A02B4053-K305)
- 14 -
b62443uo2
3.6.2
Heat Exchanger for CRT/MD1 Unit
3. INSTALLATION
External dimensions of
finger guard
s*’
+rl
43”
-It-
External dimensions of external cooling fun
Weight : 0.65kg
37a
I
396
Note
) External cooling fan and finger guard are attached beside cooling fin.
Fig. 3.6.2(a) External dimensions of external cooling fan and cooling unit for CRT/MD1
(A02B-O060-K401 (Note))
Connector for
k
external cooling fan
Cooling fin (Excluding attached parts)
: About 6kg
15
3. INSTALDWON .
8 Outside Inside
Heat exchanger
Air outlet -
&624436/02
I-
body of
exchanger
Prepare mounting screws and mounting panel
(1)
Use M5 screws to mount the heat exchanger.
(2)
Be careful with air flow when securing the external cooling fan. Prepare a mounting panel for external cooling fan and install the panel where it can be exchanged externally.
(3)
(4)
Drill mounting holes for external cooling fan and air outlet on heat exchanger mounting panel.
Fig. 3.6.2(b) Mounting methods of heat exchanger for CRT/MD1
. 1
t External cooling fan
I
\ (attached)
Finger guard (attached)
- 16 -
B42443EiO2
3. INSTALLATION
Horizontal type CRT/MD1 only
L Inside
f’ -
f
,.L outs
1
‘ide
Horizontal type CRT/MDI and machine operator’s panel
Side view
CRT/MD1
I
Heat exchanger
Min
t-7
Top view
-tt
I
I
I
Refer to these figures for allocation of CRT/MD1 and heat exchanger
Min
Vertical type CRT/MD1 only
Min
Fig. 3.6.2(c) Allocation of 14”color CRT/MDl and heat exchanger
- 17 -
3. INSTALLATION .
3.6.3
The Heat Pipe Type Heat Exchanger
B-62443uoz
3.6.3.1 Installation
Specifications
The heat pipe type heat exchanger is used for cooling the airtight cabinet of small sized electronic devices.
It is a compact, lightweight, and heat-efficient unit. Because the fan is built-in, it is used simply by installing it, performing the “panel cut’ operation.
I
Fan specifications
Weight (kg)
Color
Installation format
Cooling ability (w/“C)
L
Voltage (V) Frequency (Hz)
1 Rating current (A)
Rating input (W)
1 Installation type in board
9 (50Hz when operating) 200VAC
50
0.28 28
4
Munsell signal N 1.5
60
0.24 26
Order specifications 1 Heat exchanger A02B-O094-C901 1 Remarks
A filter is installed on the outside air inhalation side. The installation board thickness is the standard 1.6 t.
When a fan motor and filter are necessary for maintenance, prepare them separately.
Fan motor specifications
A90L=0001”219#A
Filter specifications
A250-0689-X004
If the heat exchanger is installed near the CRT, screen distortion may occur due to magnetic flux leakage from the fan motor.
18
8-62443EJo2
External dimensions
-
-
L
-
Power source terminal M4
Earth
: terminal
M4
Internal fan unit
3.iNSTALLATION
AIR
FLOW
\
\ External Fan unit
b
AIR
FLOW
,
-
-
226
P
PI
1
__----
L
22.
-A-
(Installation board thickness)
85
-4
4 1.6
22.4
- 19 -
3. INSTALLATION .
Panel cut dimensions
&-62443E/o2
180
I
. or stud
welder
uw
- 20 -
&62443u02
3.lNSTALlATiON
Installation method
Please install the heat exchanger by the following sequence:
1 Take out the external fan unit from the heat exchanger main unit. (Fig.
1) Detach the external fan unit installation screws A (2 pieces), take out
the unit from the main unit by sliding it down, and detach the earth cable and the power cable to the fan. Also detach the installation screw B (1 piece).
2 Install the heat exchanger main unit in the installation section which
has been panel cut. (Fig. 2) When fastening down the heat exchanger main unit with the screws, first, temporarily secure the panel and the heat exchanger main unit with the installation screw B, which was taken out in 1). After that, secure the main unit by the installation screws. In this case, the
external fan unit installation screw holes should be aligned with the main unit screw holes. (Please provide the installation screws for the
heat exchanger main unit.) Because this product is composed of plastic, set the value shown below for the screw tightening torque.
Heat exchanger main unit (M4 screw) : 11 kgf.cm External fan unit (M3 screw) : 5 kgf.cm
3 Connect the power cable and the earth cable to the external fan unit (the
unit detached in l), and secure the installation screw A to the main unit
from the outside.
The installation is now complete.
Fig. 1
Fan power cable
(detach the connector)
Earth cable (if the installation screw on the fan side is detached, it can be taken out.)
Take out the external fan unit from the heat exchanger main unit
- 21 -
Installation screw B (1)
1 nstallation panel
Fig. 2 Install the heat exchanger main unit and
the external fan unit
3. INSTALLATION .
37 A’CTION AGAINST NOISE
3.7.1
Separating Signal
Lines
B-62443uo2
The
CNC has been steadily reduced in size using surface-mount and custom LSI technologies for electronic components. The CNC also is designed to be protected from external noise. However, it is difficult to
measure the level and frequency of noise quantitatively, and noise has many uncertain factors. It is important to prevent both noise from being generated and generated noise from being introduced into the CNC. This precaution improves the stability of the CNC machine tool system. The CNC component units are often installed close to the parts generating noise in the power magnetics cabinet. Possible noise sources into the CNC are capacitive
couplin
g,
electromagnetic induction, and ground
loops. When designing the power magnetics cabinet, guard against noise in the
machine as described in the following section.
-~
The cables used for the CNC machine tool are classified as listed in the
following table: Process the cables in each group as described in the action column.
‘0°F) 1
I
Primary AC power line Secondary AC power line AC/DC power lines (containing
A the power lines for the sewo and
spindle motors) AC/DC solenoid AC/DC relay
DC solenoid (24VDC)
DC relay (24VDC)
Dl/DO cable between the CNC
B
and power magnet& cabinet
Dl/DO cable and machine
Cable between the CNC and ser-
Signal line
between the CNC
vo amplifier
Cable for position and velocity
feedback Cable between the CNC and
spindle amplifier Cable for the position coder Cable for the manual
C
erator Cable between the CNC and the
CRT/MD1 RS-232-C and RS-422 interface
cable Cable for the Other cables to be covered with
the shield
battery
pulse gen-
I
Bind rately (Note 1) from groups B
Action
the cables in group A sepa-
. and C, or cover group A with an
electromagnetic shield (Note 2). See Section 3.7.4 and connect
l spark killers or diodes with the
solenoid and relay.
Connect diodes with DC sole-
noid and relay.
Bind the cables in group B
rately from group A, or cover
1 group B with an electromagnetic
shield. Separate group B as far from
’ Group C as possible.
It is more desirable to cover group B with the shield.
Bind the cables in rately from group A, or cover
group C sepa-
’ group C with an electromagnetic
shield. Separate group C as far from
Group B as possible. Be sure to perform shield pro-
cessing in Section 3.7.5.
_
sepa-
22
&62443E/o2
3. INSTALLATION
NOTES
1 The groups must be 10 cm or more apart from one
another when binding the cables in each group.
2 The electromagnetic shield refers to shielding between
groups with grounded steel plates.
Cabinet
amp.
I I
I
I
~.~~_~_~~_~_____~____~__~_~__~___ _
/ /
amp.
unit
C&e of group B, C
Duct
ATo operator
(vl &pan&l
b
‘\ Cover
I
mot& etc.
- 23 -
3. INSTALLATION .
8_62443E/o2
3.7.2
Ground
The following ground systems are provided for the CNC machine tool:
l Signal ground system (SG)
The signal ground (SG) supplies the reference voltage (OV) of the
electrical signal system.
l Frame ground system (FG)
The frame ground system (FG) is used for safety, and suppressing
external and internal noises. In the frame ground system, the frames, cases of the units, panels, and shields for the interface cables between the units are connected.
l System ground system
The system ground system is used to connect the frame ground
systems connected between devices or units with the ground.
----
Signal ground system
POWM magnet- its
unit r -
- Frame
- System ground system Operator’s
PFCe_l_ _ _
.rr--4
ground system
.
I
Machine
I
tool
Notes on connecting the
ground systems
D&rib&on board
I
l Connect the signal ground with the frame ground (FG) at only one
place in the CNC control unit. The grounding resistance of the system ground shall be 100 ohms or
l
less (class 3 grounding).
l The system ground cable must have enough cross-sectional area to
safely carry the accidental current flow into the system ground when an accident such as a short circuit occurs. (Generally, it must have the cross-sectional area of the AC power cable or more.)
Use the cable containing the AC power wire and the system ground
l
wire so that power is supplied with the ground wire connected.
- 24 -
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