22
Connections
Connecting the motor, driver and power supply
• For signal lines, use twisted pair wire of AWG28 (0.08mm
2
) or greater, and 1m (39.4in.)
or less in length.
• For power lines and when extending the motor lead wires use wires of AWG26 (0.14mm
2
)
or greater.
• Separate the signal lines from the power lines and motor lead wires by at least 30cm
(11.8in.). Do not band place the signal lines in the same duct as, or bind them together
with, power lines, as this makes it easier for noise to enter the signal line, which can
cause operating errors.
• Use an open collector transistor (sink type) for the controller signal output.
• If electrical noise generated by the motor lead wires or other equipment causes
operational errors, shield the signal lines with conductive tape or wire mesh etc. (not
supplied).
Pressure welding of the connectors
• The suitable wire size of AWG28 (0.08mm
2
) to AWG26 (0.14mm
2
) with a sheathing
having an outside diameter of 0.85mm (0.03in.)~1.05mm (0.04in.).
Use a wire rated at AWG26 (0.14mm
2
) for the power line.
• Use the tool specified by the connector manufacturer (AMP 911790-1) for pressure
welding of the terminals.
Note
When pulling and inserting the connector to the driver, hold the connector itself.
Otherwise, the motor and the driver may be damaged.
Driver power supply
The input power voltage should come from a DC24V or DC36V power supply which is
reinforced insulation.
The input current of the power supply is 0.7A or less.
Use a power supply which will supply sufficient input current.
(The current value for input power is a maximum value when connecting the drive
mechanism (load) to the motor shaft.)
Note
If the current from the power supply is insufficient the motor torque will be reduced and the
transformer may be damaged. The following abnormalities may also occur.
• Erratic motor rotation during high speeds
• Delayed motor start-up and stopping
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