ABB ACH 400 User Manual page 22

Mounting Location
Wiring Requirements
Initial Inspection
Procedure
ACH 400 with Electronic Bypass User's Manual
When mounting the unit take the following precautions.
• DO NOT mount in direct sunlight.
• DO NOT mount on surfaces with temperatures above 104°F (40°C).
• DO NOT allow the ambient temperature around the ACH 400 to exceed
the ambient temperature as stated in Environment above.
• Mount the Electronic Bypass enclosure vertically with the ACH 400
control panel and Bypass control panel visible and the disconnect
accessible.
• Enclosure dimension drawings are presented in this chapter.
• For proper cooling, each unit must have two inches (50 mm) of clear space
on each side. If units are to be mounted next to each other, there must be a
total of four inches (100 mm) from unit to unit.
• The units cannot be mounted one above the other.
The ACH 400 with Electronic Bypass is designed for use on a three-phase
system. Four wires (three phase wires plus a ground wire) are required for the
input wiring. Input and output conductors, and branch circuit protection must
be sized to local codes. All field power wiring shall be copper, rated for 60°C
if rated for less than 100 amps or 75°C if rated 100 amps or more. At least
three separate conduits are required, one for input power, one for output
power to the motor and one for control signals. The External Speed Reference
signal must be wired using a shielded twisted pair cable. Refer to Electrical
Installation on page 3-13 for detailed wiring information.
As you unpack the ACH 400 with Electronic Bypass, check for any signs of
damage and verify that the delivery is complete by examining the contents for
items such as the user's manual, keypad, etc. In the event of damage, please
contact the shipping company or the supplier. Locate the drive nameplate and
confirm that the Electronic Bypass is configured to the order specifications.
Refer to Chapter 2 – Overview of ACH 400 with Electronic Bypass in this
manual.
If the Electronic Bypass is stored before start-up, verify that the
environmental conditions in the storage room meet the following conditions:
• Temperature between -40°F and +158°F (-40°C and +70°C),
• Relative humidity is less than 95 percent
• No condensation.
The warranty covers defects in manufacturing. The manufacturer carries no
responsibility for damage incurred during transport or unpacking.
If any questions arise concerning the ACH 400 with Electronic Bypass, please
contact your Distributor or local ABB Drives Office.
Chapter 3 – Installation Instructions
3-3