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*
Please read your User's manual carefully so that you will understand the operation and safety precautions before attempting to operate the system.
C-9
Speed
controller
Brake
U
nit
O
ptions
Index
MGSD type
Speed controller
*
Please read your User's manual carefully so that you will understand the operation and safety precautions before attempting to operate the system.
C-8
Wiring diagram (for unidirectional rotation)
1
• The motor revolving speed can be set from the speed setting knob on the panel.
• The thick continuous lines represent main circuit. Use conductor of size 0.75 mm
2
or larger for the main line.
• The thin continuous lines represent signal circuit. Use conductor of size 0.3 mm
2
or larger in the signal circuit.
When the distance from the tachometer generator (TG) is long, use shielded twisted pair cable.
Do not ground the shielding material.
Speed change only
2
<Precautions>
1. To change rotating direction of induction motor:
Provide a motor halt period. Switch over SW2 after complete stop of the motor.
2. To change rotating direction of reversible motor:
A motor halt period is not necessary. Switch over SW2 while keeping SW1 turned ON. When configuring
SW2 with relay contacts, use a relay having large gap between contacts (e.g. HG/HP relay from
Matsushita Electric Works, Ltd.) to prevent malfunction due to short-circuited capacitor.
3. For motors for cooling fan and motors with thermal protector, also refer to page C-12.
4. When using independent relay contacts for SW2 to change over normal/reverse, interlock both contacts
so that they will not close simultaneously.
5. The spark killer consisting of R1 and C1 must be used to protect the relay contacts.
• Connection diagram list
Wiring diagram (for unidirectional rotation)
Speed change only
Unidirectional rotation and electric brake
Normal/reverse rotation and electric brake
Wiring of cooling fan motor (F) or motor with thermal protector (TP)
Wiring to electromagnetic brake (40 W or smaller)
Wiring diagram (for unidirectional rotation)
Speed change only
Unidirectional rotation and electric brake
Normal/reverse rotation and electric brake
Multispeed setting application
Speed change with analog signal
Operation through contactless signal
Parallel operation through external speed changer
Parallel operation through analog signal
Soft-operation
Wiring of cooling fan motor (F) and motor with thermal protector (TP)
Wiring to electromagnetic brake
Connection diagram
MGSD type
MGSD type
MGSD type
MGSD type
MGSD type
MGSD type
EX type
EX type
EX type
EX type
EX type
EX type
EX type
EX type
EX type
EX type
EX type
EX type
Speed controller
C- 8
C- 9
C-10
C-11
C-12
C-12
C-13
C-14
C-15
C-16
C-17
C-17
C-18
C-18
C-19
C-19
C-20
C-20
Page
Function
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Power supply
100 VAC system: Single phase 100 to 120 VAC
200 VAC system: Single phase 200 to 240 VAC
Power switch
TG
2
Capacitor
(supplied with the motor)
For connection to the capacitor,
see the motor instruction manual.
Capacitor cap
Motor
Ground the return circuit to
the earth terminal.
(100
Ω
or less, ø1.6 mm or more).
Tightening torque: 1.0 to 1.5 N·m
Speed control knob
White
Gray
Black
Pink
Pink
1
8
7
6 5
4 3
Miniature DIN terminal block
Matsushita Electric Works, Ltd.
AT7803
This knob adjusts the rotating speed of the
motor from 90 (min
–1
) to 1400/1700 (min
–1
)
at 50/60 Hz.
Ground the return circuit to the earth terminal.
(100
Ω
or smaller, ø1.6 mm or more).
Noise filter
*
Surge absorber
*
(option)
Circuit breaker (NFB)
: 5A
<Caution>
Install a ground-fault
circuit interrupter in
the power supply.
<Precautions>
The input voltage
must be in the
range of rated vol-
tage compatible
with the motor
specification.
*
Install a noise fil-
ter and surge ab-
sorber to protect
against external
noise and light-
ning surge.
2
1
8
7
3
6
4
5
Pin No.
Unidirectional rotation
Capacitor
Pink
Pink
TG
White
Gray
Black
Motor
CW
Rated voltage
input
Rotating direction viewed
from shaft end
CW
CCW
Clockwise
Counterclockwise
Run
SW1
Stop
ON
OFF
Speed controller
2
1
8
7
3
6
4
5
Pin No.
Normal/reverse rotation
Capacitor
Pink
Pink
TG
White
Gray
Black
Motor
Rated voltage
input
CW
CCW
SW2
R1
Spark killer
Spark killer
C1
R1 C1
Run
Run
SW1
SW2
Stop
ON
CW
ON
OFF
CCW
SW1
SW2
Spark killer R1+C1
DV0P008 (option)
100 V supply system 5 A or more at 125 VAC
200 V supply system 5 A or more at 250 VAC
SW1 : Power switch
SW2 : Normal/reverse selector switch
Speed controller
*
• National specifications: Option
• Specifications compliant with
overseas standards: Attachment
*
In the case of models with a model
number to which “A” is suffixed, the
capacitor cap is optional.
The models with a model number
to which “A” is suffixed
(not equipped with a capacitor
cap) are not sold or available
in Japan.
SW1
NFB
SW1
NFB
