22
SRL 6-60 - Installation & Operating Manual -
819698-00
Electrical connection safety notes
DANGER
There is a risk of electric shock during work on electrical systems.
■
■
Always switch off the voltage to the device before opening the field housing and working on
the terminal strips.
■
■
Check that the system is not carrying live voltage before commencing work.
DANGER
Incorrectly connecting the SRL 6-60 monitoring logic unit or any associated components
is a danger to system safety.
■
■
Connect the monitoring logic unit and all associated components as shown in the
wiring diagram Fig. 10 (see page 23) of this Manual.
■
■
Do not use unused terminals as jumpers or support terminals.
Connecting the valve limit switches
Requirements for connecting valve limit switches
The level pot has three stop valves. Valves “
D
” and “
E
” are each equipped with two limit switches for the
positions “OPEN” (
D 1 / E 1
) and “CLOSED” (
D 2 / E 2
). Drain valve “
F
” is only equipped with one limit
switch for the “CLOSED” (
F 2
) position.
■
■
The valve limit switches must feature floating contacts.
■
■
To connect the limit switches, we recommend a control cable, e.g. Ölflex 110 H, 7 x 1 mm
2
and
installing an intermediate distributor directly on the level pot.
Use the supplied pre-wired control cable for this purpose
A pre-wired control cable (with plug) is supplied for connecting the intermediate distributor to the SRL
6-60 monitoring logic unit.
Connecting external pilot lamps to the relay output terminal
External pilot lamps for displaying “Standby time is running” and “Stop” can be connected directly to the
relay output terminal.
Guide the connecting cable through the cable gland in the field house
C
, see page 21.
