17
Low voltage
max. 12VAC/DC connection
Terminal: Connection
for:
S1 (2x)
Sensor 1 fl ow
S2 (2x)
Sensor 2 storage
S3 (2x)
Sensor 3 (optional)
The polarity of the sensors S1-S3 is freely selectable.
V1 / -
0-10V or PWM +/- (STDC Version 3+4)
Mains voltages 230 VAC 50-60Hz
Terminal: Connection
for:
L
Mains phase conductor L
N
Mains neutral conductor N
R
stop valve phase conductor L
N
stop valve neutral conductor N
R
Break contact (STDC Version 1+3)
The
PE protective conductor
must be connected to
the PE metal terminal block!
Low voltage
max. 12VAC/DC connection
Terminal: Connection
for:
S1 (2x)
Sensor 1 control
S2 (2x)
Sensor 2 reference
S3 (2x)
Sensor 3 (optional)
The polarity of the sensors S1-S3 is freely selectable.
V1 / -
0-10V or PWM +/- (STDC Version 3+4)
Mains voltages 230 VAC 50-60Hz
Terminal: Connection
for:
L
Mains phase conductor L
N
Mains neutral conductor N
R
Pump phase conductor L
N
Pump neutral conductor N
R
Break contact (STDC Version 1+3)
The
PE protective conductor
must be connected to
the PE metal terminal block!
Brief description of switching
function: The
Δ
T function sen-
sor 1 > sensor 2 switches the
pump at relay R.
Installation
D.8 Stop
valve
D.7 Universal
Δ
T controller
Sensor side
max. 12V
Caution
Mains side
230 AC
Danger
Sensor side
max. 12V
Caution
Mains side
230 AC
Danger
Brief description of switch-
ing function: The
Δ
T function
sensor 1 > sensor 2 switches
relay R.