User`s manual

CHAPTER 3.0 Wiring and Installation 3-20
CDS7324 (FORMERLY LSF-0819)
Rev. A INSTALLATION & USER’S MANUAL
NOTE - Cabling and component wiring is critical in obtaining successful operation of the system. Pay
close attention to specified wiring practice, cabling information, earthing and shielding requirements.
Improper wiring can result in electrical noise generation and unstable motor performance.
3.5 General System Wiring Guidelines
The following is a general reminder of the cable requirements for the DS2110 Series Servo-drives and related
equipment.
Size wire in accordance with standard wiring practice and local codes for amperage and wire length requirements.
Recommended wire sizes are given in Chapter 2.
Avoid close parallel routing of signal wires and power wires, both inside and outside of the control cabinet. High
voltage bus wires should be shielded and their length should be minimised.
Ensure proper chassis earths on all equipment. Terminate all individual chassis earths from power supply and
servo-drives to a single tie point, (i.e. cabinet earth bus). Keep the distance from earth bus to earth ground as
short as possible. Similarly, keep distance from servo-drive and power supply chassis earths to the tie point as
short as possible. Chassis earth should be run close to D.C. Bus wires to minimise EMI. The impedance
between the earth terminal and any accessible part of the equipment enclosure or cabinet should be less than or
equal to 0.1 ohm
Tighten all terminal screws securely to avoid faulty operation. Torque screws to the specified values
All power connections to the DS2110 µA, A, B & C Series Servo-drives are through removable plug-in mating
connectors. Do not solder the ends of the cables to be inserted into screw clamp terminals. All power
connections to the DS2110 D & E are via screw terminal connections.
CAUTION - Shielded cable is required to be installed by the user for many external user cable
connections to the DS2110 Servo-drive. Details of areas where shielded cable must be installed
and details of earthing arrangements which must be implemented for the shields of such cables
are given in the relevant sections.
WARNING - All electrical supply wires and cables to this equipment must be installed in conduits
(cable routings) which are smooth and free from sharp edges.
WARNING – The removable plug-in mating connectors are for ease of wiring and are not
suitable for connection or dis-connection when power is applied. All dis-connections must be
made with power removed.