Channel 2 configured as positive direction and channel 3 set to redundancy mode 180˚
Figure 8-5 Positive flow - channel 3 leads by 180°
Figure 8-6 Negative flow - channel 3 lags by 180°
Redundancy mode (pulse)
If both channel 2 and channel 3 are configured as pulse outputs, channel 3 can be configured
for redundancy mode to follow channel 2 shifted by 90˚or 180˚ of the functional width of the
pulse. If set to redundancy mode, channel 3 inherits all channel 2 settings. The functional width
of the pulse is two times the pulse "On" duration. The flow direction will determine whether
channel 3 is shifted before or after channel 2.
The following examples describe the pulse functionalities for channel 2 and 3 in redundancy
mode:
Channel 2 configured as positive direction and channel 3 set to redundancy mode 90°
Figure 8-7 Positive flow - channel 3 leads by 90°
Figure 8-8 Negative flow - channel 3 lags by 90°
Channel 2 configured as positive direction and channel 3 set to redundancy mode 180˚
Figure 8-9 Positive flow - channel 3 leads by 180°
Parameter assignment
8.2 Functions
SITRANS FC330
Operating Instructions, 01/2019, A5E44030648-AB 143
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