M&C TechGroup ECS Operator's manual - Manual (Page 17)

17
Gas sampling and gas conditioning technology 3-4.1-ME
Before model nos. 96... the pin configuration for power and alarm connection was as follows:
The power connector is on the front panel of the EC automatic control board. This is within the plastic
housing, behind the removable front panel of the cooler unit. The pin arrangement of the power
connector is as shown below (Fig. 4):
The potential-free contacts of the status collector alarm are located as well on the EC automatic
control board (Fig. 6), pins 27 to 32.
Netz ein
1
2
3
4
schwarz
schwarz
23
20
L PE
M
51
50
49
N
48
27
29
28
30
31
32
15
13
14
16
17
19
22
44
45
46
EC-Sensor
Regelelektronik EC/ECS
Kompressor
Power in
Compressor
Universaleinheit EC-FD s. Anhang
Universal unit EC-FD see appendix
EC/ECS Automatic
NO
MC
NC
NO
NC
MC
18
21
24
40
41
42
43
47
1
2
3
1
3
2
230V
50Hz
oder/or
115V
60Hz
PT 100
~
M
~
M
L
N
PE
Universaleinheit
EC-F
Universal unit
<
<
Control electronics
black
black
s. Kapitel 13.1
see chapter 13.1
The 115V aggregate is forced
ventilated by connecting the
fan (90 K 0042a) to terminals
41, 45 respectively 49 or using
optional the universal units
EC-F/FD.
Figure 7 Pin configuration for EC/ECS up to model nos. 95...
14 START-UP
The automatic control electronics of the EC/ECS permit automatic start-up of the cooler. The error
diagnostics guarantee full monitoring and reporting of possible sources of error.
The following description is valid for start-up of the gas cooler for an ambient temperature > 8°C.
N O T E !
Before starting up the gas cooler, it must be placed i its operating
position for at least two hours. The liquid inside the system may have
been redistributed, and this could cause problems in operating!
Terminal 18 19 20
EC automatic control board
Connection L N PE