Overview Of Bypass Functionality; Bypass Control Panel; Enabled Led; Motor Run Led - ABB ACH550 series User Manual

E-Clipse Bypass Configurations for ACH550 Drives

Overview of Bypass Functionality

Bypass Control Panel

The figure below shows the bypass control panel and identifies the keys and LED
indicating lights. The functions of the various keys and LEDs are described in the
following paragraphs.
"Ready Indication"
(Display Illuminated)
Escape

Enabled LED

Drive and Bypass
Selected/Faulted LEDs
Drive/Bypass Select Keys
Ready (Power On) Indication
The Ready (Power On) indication is provided by the bypass control panel. The
bypass control panel display will be illuminated and text will be displayed when the
disconnect switch or circuit breaker is closed and control power is applied to the
bypass.
Enabled LED
The Enabled LED is illuminated green under the following conditions:
• Both the Safety Interlock(s) and Run Enable contacts are closed.
• The Safety Interlock contact(s) are closed with no Start command present.
The Enabled LED flashes green if the Run Enable contact is open and when the
Safety Interlock contact(s) are closed and a Start command is present.
The Enabled LED is illuminated red when the Safety Interlock contact(s) are open.

Motor Run LED

The Motor Run LED is illuminated green when the motor is running in either bypass
mode or in drive mode. The Motor Run LED flashes green to indicate the system has
been placed in an Override condition.
Down
LCD Display
Up
Enter
ON/Hand Key
OFF/Reset Key
Auto Key
Motor Run LED
Overview of Bypass Functionality
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