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Operation (Option Version)
12.5.4 Relay option
The relay can be designed selectively in switching mode no. 1 to no. 4
(ordering specification takes place via identity code).
Only one function is always present and it is not possible to switch to
another switching mode.
Switching mode no. 1: "Fault annunciation relay de-energising"
As a collective fault for early level warning and final switch-off, metering
monitoring, fuse and mains failure reporting as well as a system error.
Function: Relay for alarm de-energising
PLEASE NOTE:
For version no. 1 care should be taken that even when the mains
is switched off the pump, the relay de-energises and an alarm is
issued!
The mains supply line and the alarm annunciation should therefore
be locked with each other, if when the mains is switched off no
alarm message should take place!
Switching mode no. 2: "Pacing relay energising"
For issuing a contact parallel to the metering stroke of the stroke solenoid.
Contact duration approx. 150 ms.
Switching mode no. 3: "Fault annunciation relay energising"
As an alarm relay for level early warning and final switch-off, metering
monitoring and system error.
Function: Relay energising in the event of an alarm
Switching mode no. 4: "Timer relay energising"
The timer relay is functionally independent of the metering times set using
the timer function (switching periods) and can be used for simultaneously
controlling a second metering pump or other electrical devices.
The timer relay is paced in the 3 following operating cases:
a) The timer was released and the pump meters within an active
switching period.
-> Timer relay is energised.
Version 2.0
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