BA-40100-02-V17 | 13
Operating instructions
Terminal
Function
Digital inputs
17
potential free input
measuring water shortage *)
18
19
potential free input
filter cleaning *)
20
21
potential free input
low level alert Controller 1 **)
22
23
potential free input
level alarm Controller 1 **)
24
25
potential free input
low level alert Controller 2 **)
26
27
potential free input
level alarm Controller 2 **)
28
29
potential free input
activate night mode operation
30
31
potential free input
not used
32
*) normally ON or normally OFF
**) normally ON or normally OFF or not active
33
A
internal
PC interface
interface for software updates
34
B
35
GND
36
alarm relay as common
alarm
Opener
37
middle contact
38
Closer
39
PE
protective conductor
Voltage: 90 up to 264 VAC
40
PE
41
N
neutral conductor
42
N
43
N
44
L
phase
45
L
46
L
4.7.2 Input module (5x) (part no. 78403)
Terminal
Function
Cable colour
Comment
51A
+
Disinfection
(amperometric
measuring cell type
CS 120)
Electrode mating
copper/platinum
or silver/platinum
possible
CS 120 (Cu/Pt)
Cu/ : blue (-)
Pt/ : red (+)
CS 120 (Ag/Pt)
Ag/ : purple(-)
Pt/ : red (+)
variant A and
variant B can be
only used as an
alternative
52A
-
51B
+
- total chlorine measuring cell (4...20
mA)
- membrane covered cell
Disinfection (0/4...20 mA)
(20 mA input with 24 V DC sensor
power)
52B
-
53
+
pH value
54
-
55
+
Redox
56
-
57
Temperature
(polarity at wish)
58
59
potentiometer with positional feedback for servo motor
(polarity of clips 59 and 61 at wish)
60
Driver
61
4.7.3 Input module (3x) (part no. 78404)
Terminal
Function
Cable colour
71
Reference electrode
(with integrated cable)
Disinfection
(potentiostatic
measuring
cell)
Reference electrode
(Glass): black
Counter electrode (Stain-
less steel): red
Measuring electrode (gold):
purple
72
Counter electrode
Stainless steel
73
Measuring electrode
(gold)
74
+
20 mA passive (no supply to the sensor)
- conductivity measurement or disturbance
variable
75
-
76
Potentiometer with positional feedback for
Servo motor. (polarity of clips 76 and 78
at wish)
77
Driver
78
4.7.4 Output module (part no. 78399)
Termi-
nal
Output
81 +
Electronic output (DO7) (Optocoupler)
configurable
82 -
83 +
Electronic output (DO6) (Optocoupler)
configurable
84 -
85
not available
86
87
Relay output (DO 4)
configurable
88
89
Relay output (DO 3)
configurable
90
91
Relay output (DO 2)
configurable
92
93
Relay output (DO 1)
configurable
94
95
Relay output (DO 0)
configurable
96
ATTENTION!
The constant regulating outputs 0/40-20 mA of the
output components are also allocated automatically
in the software configuration as per a fixed rank or-
der of the terminals, in accordance with the alloca-
tion procedure for the main board.
The outputs are allocated according to ranking:
1. Disinfection controller
2. Controller pH value
3. Controller combined chlorine
4. Controller conductivity
5. DIN contact
6. Eco-contact
7. Flocculation contact
Depending upon output type, TOPAX DX selects the next free relay out-
put or optocoupler. The clamps are assigned in a firm order: clamps
87/88 to 95/96 for relays, or 81/82 to 83/84 for optocouplers.
