5
4. Connection and operation
• Connect the motor according to the
"4. 2 Basic connection diagram"
• Insulate all the wire connections, such as the connection between the motor and the capacitor connection.
Capacitor cap are available to insulate capacitor connection.
2
1
3
Capacitor cap
Capacitor
Capacitor caps
①
Pass the lead wires through the capacitor cap as shown in the figure.
②
Connect the lead wires to the terminals or use terminal ends.
③
Cover the capacitor with the capacitor cap.
■
Capacitor connection (For only single-phase motors)
A
B
C
D
187
series
The capacitor internal wiring is as follows:
Capacitor terminals are internally electrically connected in twos; A-B and C-D for easy
connection.
For easy to install terminals use 187 series FASTON Terminals. (TE Connectivity)
For lead wire connection, use one lead wire for each individual terminal.
4. 1 Connection method to a terminal block
Terminal block
Protective earth terminal
Rubber sheet
Cable outlet of
Terminal box cover
Cable
Cable clamp
Terminal box cover
To ensure safety, ground the motor using the protective earth terminal inside the
terminal box.
〈
Appropriate cable
〉
Cable diameter: Ø8.0 ~ Ø12.0mm (0.315 ~ 0.472inch DIA.)
〈
Appropriate lead wire
〉
AWG18 (0.75mm
2
) min.
〈
Appropriate crimp terminal
〉
Use the crimp terminal as below for connection (not supplied). Dimensions in millimeters (inch).
◆
For connection to earth terminal
Tightening torque 1.0 ~ 1.5N·m (8.8 ~13.3lb-in)
Ring terminal
Ø4.1 (.161DIA.) or more
9 (.354) or less
4.5 (.177) or less
◆
For connection to terminal block
Tightening torque 0.8 ~ 1.0N·m (7.0 ~8.8lb-in)
Ring terminal with insulation
Fork terminal with insulation
Ø3.6 (.142DIA.) or more
7.2 (.283) or less
3.8 (.150) or less
6.2 (.244) or les
s
(after crimp)
3.6 (.141) or more
6.2 (.244) or less
6.2 (.244) or les
s
(after crimp)
■
Installation of the terminal box
Terminal cover screws
Terminal box cover
Cable outlet of
terminal box cover
Terminal box
Attaching screws (4-M4)
Gasket
Terminal plate
• When sealing the terminal box cover, ensure that no scraps or particles get caught
between the contact surfaces.
Also, this terminal box is constructed to hold a gasket. If this gasket comes out of
the box, please reseal it correctly on the box.
• Refer to the tightening torque table (left) to determine the appropriate tightening
torque to use when fastening the terminal box cover, cable outlet of terminal box
cover and so on.
• Cable entry is possible at any of the four sides of the terminal box.
Undo the screws which attach the terminal box to the motor case (M4, four),
position the terminal box so that the outlet faces in the desired direction and
refasten the screws.
In order to maintain a tight seal around the terminal box, a rubber sheet is used
between the terminal box and terminal plate. Also this terminal box is constructed
to hold a rubber sheet. If this rubber comes out of the box, please seat it correctly
on the box.
Note
To make shielding function fully effective, use a cable of an appropriate
diameter.
Tightening torque
Terminal box cover
1.0 ~ 1.5N·m (8.8 ~ 13.3lb-in)
Cable outlet of terminal box cover
3.2 ~ 8.0N·m (28 ~ 70lb-in)
Cable clamp
0.2 ~ 0.3N·m (1.77 ~ 2.6lb-in)
Attaching screws
1.0 ~ 1.5N·m (8.8 ~ 13.3lb-in)
