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ACH550-PCR/PDR User’s Manual
3-7
Installation
Installation
Study these installation instructions carefully before proceeding.
Failure to observe
the warnings and instructions may cause a malfunction or personal hazard.
WARNING!
on page
WARNING!
When the ACH550 with Input Disconnect is connected to the line power,
the Motor Terminals T1, T2, and T3 are live even if the motor is not running. Do not
make any connections when the ACH550 with Input Disconnect is connected to the
line. Disconnect and lock out power to the drive before servicing the drive. Failure to
disconnect power may cause serious injury or death.
Application
This manual contains supplemental information that is unique to ACH550 input
disconnect configurations (PCR or PDR). Refer to the base manual, ACH550-UH
HVAC User’s Manual (1…550 HP) on page
, for all other information.
Input disconnect features and functions
The ACH550 with Input Disconnect is an ACH550 AC adjustable frequency drive
packaged with an input disconnect switch or circuit breaker, and with a door
mounted, external operating handle. The operating handle can be padlocked in the
OFF position (padlock not supplied). Enclosure options are UL Type 1, UL Type 12,
and UL Type 3R (NEMA 1, NEMA 12, and NEMA 3R).
The following is a typical power diagram.
ACH550
Drive with Input Disconnect
Motor
3 Phase
Drive
3
3
Disconnect Switch
or Circuit Breaker
Input Power
Содержание ACH550-BCR
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