Inficon Ecotec E3000 530-001 - PLC Outputs

Equipment Connections 7-3
kina22e chapter 7.fm Technical Handbook(1206)
Gas select, gas a, gas b
Through the control inputs
GAS (pin 9, 13 and 25 of the 25 way Sub-D connector) it
is possible to select a gas loaded in the active gas memory (one gas out of four). The
Ecotec E3000 will then operate in the single gas mode.
With an edge triggered signal from
LOW to HIGH at Pin 25, the selected gas at Pin 13
and 9 becomes valid.
7.1.4 PLC Outputs
These outputs can be used to monitor the Ecotec E3000 via a programmable logic
control (PLC).
PLC Outputs are designed as an „Open Collector Output“ or a relay output. Please
refer to the example given below for an open collector output „Error“.
Technical data
Pin 25 Pin 13 Pin 9 Function
0 x x Gas selecting disabled
10 0 1
st
gas is selected
10 1 2
nd
gas is selected
11 0 3
rd
gas is selected
11 1 4
th
gas is selected
Fig. 7-2 Circuit for open collector output “Error”
6
17
24 V
I/O Port (open collector output)
Error active = 0 Volt
Error inactive = 24 Volt
10 K

Caution
Permissible max. voltage and current for open collector outputs are: 28 V; 50 mA.