Mechanical Installation; Power Connections; Input Wiring; Output Wiring - ABB ACS 501 Installation & Start-Up Manual

Chapter 3 – Installation Instructions

Mechanical Installation

Power Connections

Input Wiring The ACS 501 is designed for use on a three-phase system. Four wires (three
Output Wiring Sizing is the same as for the input wiring.
Dynamic Braking When Dynamic Braking is required, connection is made to the DC bus
3-10
The ACS 501 is mounted on a wall in a vertical position using four mounting
notches at the top and bottom of the unit. When choosing the mounting location
pay attention to the environmental needs of the ACS 501.
Note: Do not handle or lift the drive using the front cover. Use the bottom for
lifting or handling.
To ensure safe installation, check that the surface of the mounting location is
flat. Mark the mounting points of the ACS 501 on the wall using the template
printed on the protective cardboard package as a guide. The maximum size of
the mounting screws is 1/4 in. (6 mm) for 002 – 005 R2 units and 5/16 in.
(8 mm) for 007 – 040 R3, R4, and R5 units. Attach the screws to the marked
positions. Attach the unit at the mounting notches and tighten the screws.
600 volt units are supplied in two pieces; a base drive, and an ac choke unit.
Mount the base drive first as instructed above. Remove the cover of the drive
and mount the ac choke unit below by fastening the top to the drive with the
screws supplied (screwed into the casting of the drive). Fasten the ac choke unit
to the wall at the bottom.
600 volt units only: Attach the leads from the ac choke to the input terminals in
the base drive (at the input fuses); and connect the leads from the output
terminal block to the output terminals in the drive. All field connections are
made to the terminal blocks in the ac choke enclosure.
phase plus a ground wire) are required for the input wiring. When sizing wire,
always conform to local regulations.
WARNING:
• Do not connect or disconnect input or output power wiring, or control
wires, when power is applied.
• Never connect line voltage to drive output Terminals U
• Do not make any voltage tolerance tests (Hi Pot or Meggar) on any part
of the unit. Disconnect motor wires before taking any measurements in
the motor or motor wires.
• Make sure that power factor correction capacitors are not connected
between the drive and the motor.
terminals. Dynamic Braking can be accomplished in two ways.
1. Internal Dynamic Brake Chopper. If the ACS 501 was provided from the
factory with dynamic braking, the control logic and power switch for the
dynamic braking are built into the drive. The DC bus voltage is present at
the DC bus terminals only when the DC bus voltage exceeds the braking
ACS 501 Installation & Start-up Manual
, V , and W .
2 2 2