DIQ/S 281
Outputs
85
ba77244d01
08/2020
Proportional outputs can be used in the following way:
Output with one relay:
An output range is defined with a
Start value
and an
End value
. No output
takes place above and below the output range (see page 85).
Output with two relays:
An output range is defined for each relay with a
Start value
and an
End value
.
One relay outputs in the upper output range and a further relay in the lower
output range (see page 85).
Output with one
relay
Output with two
relays
figure 6-3
Output with two relays
figure 6-2
Output with one relay
10
100
Proportional
band
Measured value
1
2
90
0
Switching frequency f or
Pulse
v
width
1
Start value
Measured value with a minimum pulse width or switching frequency
2
End value
Measured value with a maximum pulse width or switching frequency
Proportional bands
Relay 1 and 2
Measured value
Relay 1
Relay 2
1
2
2
1
10
100
90
0
Switching frequency f or
Pulse
v
width
