Analog Output; Digital Inputs; Pt100/Pt1000 Input; Power Indicator Led - Grundfos CIU 27X Montage- Und Betriebsanleitung

The factory setting of the jumpers is
"closed". This means that both
Note
configurable inputs are set to digital
control signal.

5.3 Analog output

The analog output can be activated, changed or set
remotely via the Grundfos Remote Management web
user interface.
For connections, see fig. 5 and section 6. Overview
of inputs and outputs.
Connect the cable screen under the
Note
earth clamp in the CIU unit.
0-10 V output
Fig. 5 Analog output

5.4 Digital inputs

The IO module has two dedicated digital inputs.
For connections, see fig. 6 and section 6. Overview
of inputs and outputs.
Connect the cable screen under the
Note
earth clamp in the CIU unit.
Fig. 6 Digital inputs DI3 and DI4
Only potential-free devices must be
Caution
connected to the digital inputs.
6 7
8 9 10
DI3 DI4

5.5 Pt100/Pt1000 input

The IO module automatically detects the type of
Pt sensor connected.
For connections, see fig. 7 and section 6. Overview
of inputs and outputs.
Connect the cable screen under the
Note
earth clamp in the CIU unit.
PT100/PT1000
Pt100/Pt1000
Fig. 7 Pt100/Pt1000 input
Cable length compensation is not
Note
supported by the IO module.

5.6 Power indicator LED

See fig. 8.
If the LED (pos. 13) is permanently green when the
power supply has been switched on, the power
supply to the IO module is OK.
If the LED remains off after the power supply has
been switched on, see section 9. Service.
Fig. 8 Power indicator LED
11 12
13
7