6
Description and function
EN Rivo™ I Controller
42
W3T597263 Issue 01-0624 | Evoqua Water Technologies GmbH
6.14.2 Without Acknowledge
• The alarm symbol and the message symbol light up in
the event of an alarm and go out automatically when
the condition is eliminated.
• Unlatched alarms are displayed in yellow as mes-
sages.
• The relay is active when the alarm symbol is dis-
played and the alarm is active.
6.14.3 ACK with reset
• In the event of an alarm, the alarm symbol and the
message symbol flash and the relay is active until
acknowledged.
• The alarm symbol and the message go out even if the
conditions still apply when the alarm is acknowl-
edged.
• Latched alarms are displayed in red as messages.
• The relay becomes inactive after acknowledgment if
the condition is still pending.
6.14.4 Simple ACK
• The relay becomes active as soon as the alarm is
active.
• In the event of an alarm, the alarm symbol and the
message symbol flash until the alarm is acknowl-
edged.
• If the condition is no longer present when the alarm is
acknowledged, the alarm symbol goes out and the
message disappears.
• If the condition is still present when the alarm is
acknowledged, the alarm symbol and the message
are reset from flashing to a permanent state. The
alarm symbol and the message light up until the con-
dition is eliminated (auto-reset).
• Latched alarms are displayed in red as messages.
• The relay is only deactivated when the condition has
been eliminated and acknowledged.
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