Eaton EFX48 e-Fuse Series, Installation And Operation Manual

Page: 111 / 161

EFX48 e-Fuse System Operation
Copyright © 2019 Eaton Corporation. All Rights Reserved.
IPN March 2019
111
Alarms
The EFX48 contains a number of configurable alarms for string, load and controller functions.
These are defined in detail in the following pages.
Each alarm can be disabled, or it can be set to one of 3 severity levels: warning, minor or major.
Each alarm can be linked to up to 2 alarm outputs which can be any combination of digital
outputs and relays.
The state of the digital inputs can be used to create alarms, and these alarms have configurable
names. So it is possible, for example, to use a digital input as a door interlock input, name the
alarm ‘DOOROPEN’ and route the alarm to a relay.
Note that an alarm condition will still cause some system state changes even if the alarm itself is
disabled. i.e. an ac fail condition will terminate fast charge even if ac fail alarm is disabled.
The following general and specific settings apply to all alarms:
• Global alarm recognition time 0-900s
(
this applies to both the raising and cancelling of alarms, and is the time that the alarm
state must be continuously present for before the raising or cancelling of the alarm)
• Alarm Severity none, warning, minor or major
•
Alarm Output A & B A & B can be set to any digital output or relay
No alarms are persistent through a power cycle.
Alarm Delay Recognition Time
All alarms are subject to a global alarm recognition time which is user settable in the
configuration. In the following sections various alarms have defined qualification times to
which the alarm dwell time has to be added before the alarm becomes active. As an example,
Over current alarm has a qualification period of 20secs, if the alarm dwell time is set to 30secs
then the alarm will not be generated until the alarm condition has been met for 50secs.
Alarm Cancelling
Alarms can be cancelled individually by following the procedure on page 79.