ACS 300 User’s Manual 15
Chapter 3 - Power Connections
Line Voltage
Ratings
The ACS 300 product line includes models for use on 200 to
240 V and models for use on 380 to 480 V supplies. Tables 3-1
and 3-2 list the available models.
WARNING!
NEVER
connect voltage higher than 240 V to the
input power terminals of the 200 to 240 V model ACS 300
drives.
Note! The Factory setting of the 400 V series ACS 300 supply
voltage is 480 V. If your voltage is much lower than 480 V, for
example 380 V or 400 V, you may get an undervoltage fault
message when first using the ACS 300. After connecting the
input power, change the value to correspond to the supply
voltage. Press the Start/Stop key to reset the fault message.
Power Wiring
Requirements
Power wiring includes input power wiring, motor wiring, ground-
ing connections and dynamic braking circuit wiring (optional).
Table 3-1 and Table 3-2 provide wire size and input line fuse
recommendation. Power wire insulation must be rated 60°C for
use in ambient temperatures up to 45°C or 75°C for use in
ambient temperatures between 45°C and 50°C.
To gain access to the input power, motor and control terminals,
remove the front cover of the unit by loosening the two screws
at the bottom. Figure 3-1 shows the locations of the power con-
nection terminals.
Cable clamps that are provided for use with shielded power
cables can be removed if shielded power cables are not used.
Refer to
Appendix A - Product Conformity in EEA
for informa-
tion regarding the installation of the ACS 300 in conformance
with the requirements of the European Economic Area includ-
ing recommendations regarding the use of shielded power
cables to suppress RFI emissions.
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