Rev. 0 - 05/11/2020
OPERATING MANUAL
OPERATING MANUAL
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EN
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9.6.4.7 Tachometric, Alarm and Filter Output
The analogue output channel is configured, by default, to provide a PWM tachometric output signal.
The tachometric output is a 0 to 10V PWM waveform at 1KHz.
when the speed is equal or higher than the speed min and it is 0% when the speed is lower.
The device reading the output must be connected to TACHO\ALARM\FILTER pin and GND.
The max current supplied of the output is 0.2mA.
Remember that the Speed
Real
is 0 whenever the required speed is lower than Speed
min
unless the fan is in the dragging phase.
The same analogue output channel can be reconfigured, by changing the value in Holding Register 46 (see paragraph 18.3 at
page 41), as a Digital Alarm Output (refer to chapter 19 and paragraph 19.4), or in one of the alternative alarm modes described
in paragraphs 12.1 and 12.2.
Input Impedances
Feature available on
ANALOG INPUT
20 kΩ
PFP 1.35 kW 1-Phase
ENABLE
ANALOG INPUT
TRANSDUCER INPUT
200 kΩ
PFP 2.65 kW 3-Phase
PFP 4 kW 3-Phase
9.6.4.8 Input Impedances
