Eaton SC300 - Phase Detection; Identify a Rectifier; Rectifier Comms Lost Alarm; Rectifier Shutdown

System Operation
Copyright © 2007-2018 Eaton Corporation. All Rights Reserved.
IPN 997-00012-03 B2 Issue B2 July 2018
43
Phase Detection
In a three phase system where all rectifiers support phase detection (including APR48-ES and
NPR48-ES), the SC300 can automatically detect the AC phase for each rectifier.
 Phases are calculated relative to a particular rectifier.
► To enable Phase Detection
On the Web, go to Rectifiers.
Set Phase-1 to the serial number of any rectifier that is on AC Phase 1.
 After one minute or less, the SC300 will assign phases to all rectifiers.
 Phase detection does not work if there are rectifiers that do not support phase detection.
 Leave Phase-1 at 0 for a single phase system.
Identify a Rectifier
The rectifier's registration number does not correspond to a physical position in the dc power
system.
► To identify a rectifier
Either:
• On SC300 keypad go to: Rectifiers > Rectifier number. Press Enter.
 The rectifier details screen appears. Use to scroll to other rectifiers.
• All LEDs on the selected rectifier will flash for 60 seconds, or press Esc to stop.
Or:
• In DCTools/Web go to: System > Interfaces > RXP > RXP Devices.
• All LEDs on the selected rectifier will flash for 60 seconds.
 Rectifier serial numbers are printed on a label on the front of each rectifier.
Rectifier Comms Lost Alarm
When a rectifier is removed (or a fault interrupts rectifier communications), the SC300 will display
an alert message and sound an alert alarm (if Audible Alarms are enabled). After the Alarm
Recognition Period, a Rectifier Comms Lost alarm will activate.
 A Multiple Rectifier Comms Lost alarm will activate (after the Alarm Recognition Period) if
more than one rectifier is affected.
► To prevent a Rectifier Comms Lost alarm when a rectifier is removed
Press any key within the Alarm Recognition Period, to cancel the alert.
Rectifier Shutdown
Rectifier shutdown can be disabled, controlled manually, or controlled automatically based on the
total rectifier load current (see Load Based Rectifier Shutdown on page 44).
► To disable Rectifier Shutdown
• Use the SC300 keypad to go to: Rectifiers > Settings (tab) > set Rectifier Shutdown to Disabled.
• Or, in DCTools/Web go to: Rectifiers > Configuration> set Shutdown to Disabled.