ABB CoriolisMaster FCB400 Series Manual page 78

78 CoriolisMaster FCB400, FCH400 CORIOLIS MASS FLOWMETER | CI/FCB400/FCH400-EN REV. H
... 7 Commissioning
... Basic Setup
Menu / parameter
Dig.Out 51 / 52 Mode
Description
Selection of the operating mode for the digital output 51 / 52.
• Off: Digital output deactivated.
• Logic: Digital output functions as binary output (for function see parameter '„...Setup Logic Output').
• Frequency: Digital output 51 / 52 as a frequency output. In frequency mode, a frequency is issued that is proportional to
the flow rate. The maximum frequency can be configured in accordance with the upper range value.
• Follow DO 41/42: The digital output 51 / 52 follows the function of digital output 41 / 42. Depending on the setting of the
parameter 'Input/Output / ...Dig.Out 41/42 / Outp. Flow Direction', digital output 51 / 52 is operated in pulse mode as
follows:
– No pulses are issued if 'Forward & Reverse' is selected. Only digital output 41 / 42 is active.
– If 'Forward' is selected, pulses for forward flow are issued on digital output 41 / 42, while pulses for reverse flow are
issued on digital output 51 / 52.
– When "Reverse" is selected, pulses for reverse flow are output on digital output 41 / 42, while pulses for forward flow
are output on digital output 51 / 52.
• 90° Shift: Output of the same pulses as for digital output 41 / 42, phase shifted by 90°. Only if digital output 41 / 42 has
been configured as a pulse or frequency output.
• 180° Shift: Output of the same pulses as for digital output 41 / 42, phase shifted by 180°. Only if digital output 41 / 42 has
been configured as a pulse or frequency output.
• Follow DO 41/42 (Frequency): The digital output 51 / 52 follows digital output 41 / 42. Digital output 51 / 52 then also
works as a frequency output, the settings under "... / Dig.Out 41 / 42 / ...Setup Freq Output" are accepted.
The output of the frequency at digital output 51 / 52 is dependent on the setting of the register "Outp. Flow Direction" for
digital output 41 / 42:
– When "Forward" is selected, a frequency for forward flow is output at digital output 41 / 42 and a frequency for
reverse flow is output at digital output 51 / 52
– When "Reverse" is selected, a frequency for reverse flow is output at digital output 41 / 42 and a frequency for forward
flow is output at digital output 51 / 52
• 180° Shift (Frequency): Output of the same frequency as for digital output 41 / 42, phase shifted by 180°
Note
If digital output 41 / 42 has been configured as pulse or frequency output, digital output 51 / 52 can be configured separately
as binary or frequency output.
However, digital output 51 / 52 cannot be configured as a second independent pulse output.