ACH550-UH User’s Manual
13
Installation
Wiring Overview
Warning! Ensure the motor is compatible for use with the ACH550. The
ACH550 must be installed by a competent person in accordance with the
considerations defined in "Preparing for Installation" on page 8. If in doubt,
contact your local ABB sales or service office.
As you install the wiring, observe the following:
•
There are two sets of wiring instructions – one set for each enclosure type (IP 21
/ UL type and IP 54 / UL type 12). Be sure to select the appropriate procedure.
•
For the power connection points on the drive see the "Connection Diagrams"
section below.
•
Use separate conduit runs to keep these three classes of wiring apart:
– Input power wiring.
– Motor wiring.
– Control/communications wiring.
•
For details on power connections, refer to the following sections in
:
– "Input Power Connections" on page 228.
– "Motor Connections" on page 232.
•
For floating networks (also known as IT, ungrounded, or high impedance
networks):
– Disconnect the internal RFI filter by removing both the EM1 and EM3 screws
(frame sizes R1…R4, see page 14), or F1 and F2 screws (frame sizes
R5…R6, see page 15).
– Do NOT install an external filter, such as one of the kits listed in the filter table
on 236. Using an EMC/RFI filter grounds the input power through the filter
capacitors, which could be dangerous and could damage the unit.
– Where EMC requirements exist, check for excessive emission propagated to
neighboring low voltage networks. In some cases, the natural suppression in
transformers and cables is sufficient. If in doubt, use a supply transformer with
static screening between the primary and secondary windings.
•
For details on control connections, refer to the following sections:
– "Control Connections" on page 237.
– "Application Macros" starting on page 35.
•
For electro-magnetic compliance (EMC), follow local codes and the requirements
in "Motor Cable Requirements for CE & C-Tick Compliance" on page 234. For
example:
– Properly ground the wire screen cable shields.
– Keep individual un-screened wires between the cable clamps and the screw
terminals as short as possible.
– Route control cables away from power cables.
