Terminal board
The terminal board connects the interface board 3 to
the valves, switches, recorders etc. It has terminals for
the following functions:
24 digital outputs
16 digital inputs
4 analog outputs
Power supplies
Serial interfaces 1, 3 and 4
You can find detailed information on these subjects in
Register 3.
CAUTION
To prevent interferences, all external cables
must be screened. The screen must be
connected to the chromatograph housing in
the cable gland.
Terminal assignments
Terminal Group Application
1
2
3
4
5
Power
supply
-15 V
GND 5 V
+15 V
+24 V
GND 24 V
8
9
Failure relay Relay contact, max. 0,5A/100V
Contact open = Analyzer Failure
10
11
12
13
14
15
Analog
outputs
Ground
Analog output 1
Analog output 2
Analog output 3
Analog output 4
Ground
20
21
22
23
24
25
26
27
28
29
Serial
interfaces
SER.1 TxD -
SER.1 TxD +
SER.1 RxD -
SER.1 RxD +
Looping point
Looping point
SER.3 a
SER.3 b
SER.4 a
SER.4 b
30
31
32
33
34
35
36
37
38
39 ... 46
47
48 ... 55
56
Digital
outputs
24 V = Ready / 0 V = Not ready
24 V = Maintenance request
24 V = Run A
24 V = Run B
Cooling
Air flaps moving
Air flaps, direction: open
Heater enable
GND 24 V
Digital outputs 9 to 16
GND 24 V
Digital outputs 17 to 24
GND 24 V
57
58
59
60
61
62
63
64
65
66 ... 73
74
Digital
inputs
Short-circuit signal
Housing purging o.k.
Housing temperature o.k.
Carrier gas pressure o.k.
External device A not ready
External device B not ready
Reserved
Reserved
GND 24 V
Digital inputs 9 to 16
GND 24 V
Cable connections
Cable Application
X 1
X 2
X 3
X 4
X 5
To interface board 3, bottom
1 = 24 V; 2 = GND, comes from bus board X 18
To PCPU-2, SER.1
To PCPU-2, SER.3
To PCPU-2, SER.4
0
9
10
30
39
66
57
48
74
29
19
20
X1
X3
X4
X5
X2
1
XK1
XK1
Control electronics
12
9KLEMM.CHP, Stand Dezember 22, 1999
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