Programmable controller PI 6000
32
5.3.5 Switched outputs
Four semiconductor switched outputs are
available (maximum load 50 V DC or 36 V AC,
0.2 A). These outputs can be used, e.g., for the
automatic control of sequential control proc-
esses
• "safety shut-down" contact (emergency
stop) closes if the temperature measured by
the alarm pyrometer exceeds the alarm
temperature set.
• "ready" contact (program complete) closes
after the completion of the control program
for a definable period.
• "generator on" contact closes when the
control program starts and opens again
when it is complete.
If a value is stipulated for the minimum gen-
erator level, the signal for switching on and
off the generator is provided using this con-
tact (shown dotted).
• "program start" contact (program running)
closes as soon as a control program has
been started and opens again once the pro-
gram is complete.
You will find the information on the control of
the switching outputs in section 6.6.5 Ad-
vanced program settings for the InfraWin
software.
14
13
12
11
10
9
8
7
6
5
4
3
2
1
27
26
25
24
23
22
21
20
19
18
17
16
15
safety shut-down (output)
ready (output)
generator on (output)
program start (output)
program start
generator on
ready
pre-run time
(can be 0)
control
follow-up
time
(can be 0)
ready
pulse
(must be
> 0)
5.3.6 Program remote control
By briefly connecting connections 3 and 10,
e.g. using a button (momentary contact >100
ms), the control program currently selected can
be started and then stopped by making the
connection again.
14
13
12
11
10
9
8
7
6
5
4
-
3
2
1
27
26
25
24
23
22
21
20
19
18
17
16
15
ext. trigger (input)
5.3.7 Controller output
The analogue controlled variable signal is
provided on terminals 26 and 27 using a 0 or
4 ... 20 mA output that is electrically isolated
from the power supply (for information on
setting see 6.6.5 Advanced program set-
tings).
To operate generators that cannot be regulated
down to zero, a threshold can be set for the
controlled variable below which the unit
switches from continuous control to on-off
control. In this case the "generator on" switch-
ing output provides the corresponding signal
for switching on and off the generator.
14
13
12
11
10
9
8
7
6
5
4
3
2
1
+
27
-
26
25
24
23
22
21
20
19
18
17
16
15
output controlle
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