1.4.2
Light emitting diodes and terminal board
The chart below lists the connection options for the terminal boards and explains the various colours of the light
emitting diodes.
No.
Designation
Max. load
Meaning when the light diode is …
1, 2 & 3
SUPPLY IN
230-/- 10%
green: the EBC20 is connected to a power supply
4, 5 & 6
FAN OUT
3A
green: the triac output is active
7 & 8
VFD OUT
250VAC, 8A, AC3
green: the relay is connected
9 & 10
ALARM OUT
250VAC, 8A, AC3
red: the relay is open
11 & 12
BOILER 1 IN
18 - 230VDC / VAC
green: the input is active
13 & 14
BURNER 1 OUT
250VAC, 4A, AC3
green: the relay is connected
15 & 16
BOILER 2 IN
18 - 230VDC / VAC
green: the input is active
17 & 18
BURNER 2 OUT
250VAC, 4A, AC3
green: the relay is connected
19 & 20
24 VDC OUT
100mA
green: power supply OK
red: overload
21 & 22
0 - 10 V OUT*
20mA
green: the output is active
23, 24 & 25
XTP IN
green: XTP connected
red: return voltage >12 VDC
26, 27 & 28
PDS IN **
green: C & NO are connected
29, 30 & 31
TEMP IN
green: temperature sensor connected
* Cable length between 0-10V output (terminal 21 & 22) must not exceed 100 m
and must be of a shielded cable 3 x 0,75 mm
2.
** Terminals 26, 27 & 28 can however also be used for connecting other auxiliary surveillance equipment.
3002878-EBC20-UK
8
• Product information
8
• Product information