Inputs and outputs

Pressure detection for pressure control

Passive pressure sensor 4 to 20 mA

1

1

Pressure switch

1

−

Level measurement for filling or draining

Float switch/electrode

2

4

High water only for filling

Float switch/electrode

1

1

Dry-running protection pump for pressure control, filling or draining

Float switch/electrode

1

2

Monitoring

Thermal winding monitor (bimetallic sensor)

1

2

Thermal winding monitor (PTC sensor)

−

−

Thermal winding monitor (Pt100 sensor)

−

−

Other inputs

Extern OFF: for remote deactivation of all pumps

1

1

Collective fault signal (changeover contact)

1

1

Collective run signal (changeover contact)

1

1

Individual fault signal (closed contact (NC))

1

2

Individual run signal (open contact (NO))

1

2

Power output (connection load: 24 V=, max. 4 VA)
e.g. for connecting an external alarm signal (lamp or horn)

1

1

Display of actual pressure value (0 – 10 V=)

1

1