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CAUTION
!
Incoming power, motor wiring and control wir-
ing should be run in three separate conduits or
raceways.
Electrical Installation, Control Wiring
Torque: 5 - 6 in-lbs
Screw size: M3
Shield control wires, when necessary, to reduce interference from
electrical noise by means of a cable clamp at both ends to the metal
enclosure of the unit. Connect the shield to earth ground. Very long
control wires may create 60 Hz interference. This problem can be
solved by connecting one end of the shield to earth with a 0.1 µF
capacitor, keeping the leads as short as possible. If this doesn't solve
the problem, disconnect the shield's connection to earth ground at the
end opposite to the drive.
DIP Switches 1 through 4
DIP switches are located on the control card.
They are used for serial communication and the common of digital
inputs 16 through 33. The switch positions shown are the factory
settings.
Switch 1 is not used.
Switches 2 and 3 are used for terminating serial communication. On the
first and last drive in a multiple device network, or on the only drive of a
single drive network, switches 2 and 3 must be ON (the default setting).
On all other drives in a multiple device network, set switches 2 and 3 to
OFF.
Switch 4 separates the common for the internal 24 VDC supply from the
common of the external 24 VDC supply. Normally this switch is ON and
the power supply is present at terminals 12 and 13. Set Switch 4 to the
OFF position when an external 24 VDC supply is used.
Ground Leakage Current
It is normal for there to be some leakage current from the drive to earth
ground. Paths of current leakage are shown on the drawing below.
The leakage current will exceed 3.5 mA.
Paths of Normal Current Leakage to Ground
19
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