Notes on connections
26
SYCON
3000 H
PE
1
22-26
N1 L1
2
Power supply
Example NE 1
Notes on connections
Mains input
The mains input voltage can be found on the nameplate. The instrument can be con-
nected with the mains supply permanently or through a mains plug.
If the analyser has a fixed connection with the power supply system and in addition
the door is closed with a lock, an additional contact-breaking device, e.g. an emer-
gency cut-out switch, must be accessible so that the instrument can be disconnected
from the mains.
Heed the general guidelines and regulations governing the installation of electrical
appliances.
Mains output
A mains output voltage is available coupled with
the power switch. By means of this voltage, a con-
trol room, for example, can be signalised whether
the analyser is switched on or off. Furthermore, this
voltage can also be used to supply the relay con-
tacts OUT1-OUT3 n.
Example NA 1
Connection of a control lamp to signalise "Instru-
ment switched on/off".
Example NA 2
Example NA 2
Example NA 2
Example NA 2
Supply of a solenoid valve with the mains output
voltage.
Inputs
The analyser is equipped with 2 identical inputs for floating switching contacts. It is only through the
programming in the programme steps 3.1 and 3.2 that they are allocated a specific function. In pro-
gramme step 3.3, it is determined whether the activation of this function occurs when the contact is
closed or open.
Via the INFO key, you can query the current programming and the switching states of the inputs (see
page 4).
Further information on the in-
puts can be found on page 7 in
the section "Input functions".
Analysis start:
flow monitor, time-switch clock,
remote control switch
Analysis stop:
pressure switch, time-switch
clock, remote control switch
Delete relays:
remote control switch
Water meter:
Water meter pulse, relay pulse
(control)
If the desired switching contact is
not a floating contact, a floating
signal must be made available by
the interposition of a relay.
Example E 3
Relay
Floating
signall
Non-floating
signal
3
n1 l1
4
Ex ample NA 1
Control lamp
3
l1
4
Ex a mple NA 2
C No Nc
n1
IN 1 or IN 2
Example E 1
Button,
switch,
relay contact
etc.
Activation of the input function
with contact closed
IN 1 or IN 2
Example E 2
Button,
switch,
relay contakt
etc.
Activation of the input function
with contact open
