Gonnheimer Elektronic DC 155, Руководство пользователя

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Page 6 4 manual DC155
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The DC155 has three free programmable digital outputs . In the example above two of them must be
reserved for valve control.
The polarity of each output can be configured as "normally open" or "normally closed".
The following figure shows any possible function of a digital output.
Figure 1 Digital output functions
Function Description (definition: output in normal open connection)
1. Counter = 0 The digital output is active, if the actual value is equal to zero. Otherwise the digital
output is inactive.
2. Fine valve Control output for a valve with a fine cross section.
Also, the control output for a single valve.
3. Coarse valve Control output for a valve with a wide cross section.
4. Dosing is running The output is active as long as the dosing is running and the pause time is not ex-
pired. Otherwise the digital output is inactive. See also the time diagram above.
5. Any failure The output is active as long as any failure (broken wire, flow to big, etc) is occur-
ring. The output remains closed until the failure has been fixed and has been
acknowledged by pressing the reset key. Otherwise the digital output is inactive.
6. Flow to small The output is active as long as the flow rate is too small and the failure is not
acknowledged. Otherwise the digital output is inactive.
7. Flow too big The output is active as long as the flow rate is too big and the failure is not
acknowledged. Otherwise the digital output is inactive.
8. Impulses
The output provides one pulse for any increment of the pre-decimal place of the ac-
tual value.
Table 1: Function list of the digital outputs
The total quantity of all batch processes is added and stored by a sum counter . The sum counter is shown
permanently at the bottom of the display. The sum counter can be reset by the user manually. It provides
information about the dosed product over several batches or over a longer period of time.
Furthermore, it is possible to realise a very simple batch control using only one digital solenoid valve. In
this case you have to configure the single valve as a fine valve . Consider, the parameters like setpoint 1 and
setpoint 2 (but not the lag quantity!) lose their functions.
Select the function of
digital output 1:
0. No function
1. Counter = 0
2. Fine valve
3. Course valve
4. Dosing is running
5. Any failure
6. Flow too small
7. Flow too big
8. Impulses
.
End