Rev. 0 - 05/11/2020
OPERATING MANUAL
OPERATING MANUAL
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An external transducer can be powered and connected to the driver.
There are two possible connections depending on the kind of transducer used:
1) Open Control Loop Transducer
2) Closed Control Loop Transducer
Nicotra Gebhardt
can provide a Pressure Transducer code K43198.
If the transducer does not have its own control and it supplies a voltage signal [0, +10V] proportional
to the measured variable, it is possible to use the tunable PID of the driver.
The signal must be connected to the TRANSDUCER INPUT.
9.6.3.3 Enable Signal (for RDP 2.65kW - 3-Ph only)
The fan runs when the ENABLE input is bridged to the
+10V or +24V power supply.
The status of the ENABLE input does not
affect the Modbus Temporary modes.
9.6.3.4 Pressure and flow meter (for RDP 2.65kW - 3-Ph only)
To provide a constant airflow, it is possible to order the RDP fan provided
with the optional Volumeter pressure probes, which are then connected to
transducer K43198 by means of K409A2 piping. This transducer is connect
-
ed to the PID regulator incorporated into the driver, which is installed on
the fan.
The pressure transducer should be connected with volumeter pressure
probes on the RDP fan provided as a factory installed option.
For a correct installation, follow the instructions supplied with the
single components.
If it is not necessary turning on/off the fan with an
external switch, a jumper can be inserted between
24V and ENABLE. In case this jumper is not
included, the fan will not start.
For further details, refer to par. 13.3.
