Installation, operating and maintenance manual SKIT/S-DEB
3rd print version
page 27
3 – Design and function
RWO GmbH
●
Marine Water Technology
●
Bremen
●
Germany
Issue 2014-04-10
Alarms
3.17.1
All alarm states activate a collective alarm relay. The
display shows the different alarms as text. Potential-free
changeover contacts X1-1, X1-3 and X1-5 can be used for
an alarm signal.
System status message
3.17.2
If the following conditions are met:
·
Switch 1Q1 = On (
à
Fig. 10 Control box).
·
Switch 2S3
≠ 0 (
à
Fig. 10 Control box).
·
"Level in bilge tank is high" (
à
chapter3.18)
·
Alarm status except 15ppm (5ppm) – Alarms not
given“,
two relays are activated.
The user can connect a remote indication light of the
system status.
Terminals X4-5 and X4-6 (ready connected by RWO)
provide an operation signal to the oil monitor which logs
the oil separator operating hours.
3.18
Optional control functions
By factory default, terminals X2-1 and X2-2
as well as X2-3 and X2-4 are bridged. To enable level
detection, two level switches must be connected instead of
the bridges. Oil separation starts and the green LED (bilge
level) illuminates when the bilge water level has reached
the upper level switch. When the bilge water level has
reached the lower level switch, oil separation stops and
the LED (bilge level) goes off.
If the control unit detect an illogical signal input, e.g. upper
level present and lower level not present, the system
switches into standby mode and activates the alarm
output.
Note
If the level control is to be implemented with one
floating switch only, remove both bridges. The level
switch must be connected as NOC to terminals X2-1
and X2-2, additionally set a bridge between X2-2 and
X2-4.
Oil separator remote control
3.18.1
By factory default, the terminals X2-5 and X2-6 (NC) are
bridged. The user can connect a remote switch "On - Off”
or "Emergency Stop” there. These can switch the system
into standby mode.
Oil tank overflow
3.18.2
If software variant OP000 / OP001 / OP002 or OP003 is
activated!
By factory default, the terminals X2-7 and X2-8 (NC) are
bridged. The user can connect a level switch there. In
case of oil tank overflow, the system switches into standby
mode and activates the alarm output.
