ABB EL6010, Operator'S Manual

Page: 19 / 76

42/24-30 EN Rev. 1 EL6010 Gas Analyzer in Category 2G Operator’s Manual 17
Control Unit: Electrical Connections
1 1 LDA
2 2 LCL
3 3 TINT
4 4 RX_B
5 5 RX_A
6 6 TX_B
7 7 TX_A
8 8 485EN_B
9 9 485EN_A
10 10 RESET
11 11 S_DOWN
12 12 GND
Data Transmission to / from Analyzer Unit (see page 19)
13 PE
14 24 VDC +
15 GND Analyzer Unit Power Supply (see page 19)
16 RxD
17 TxD
18 GND RS232
19 RTxD–
20 RTxD+
21 GND RS485
Serial Interfaces
Transfers measured values and status signals to host systems, e.g. to standard Windows
applications via Modbus DDEServer. Modbus slave protocol in RTU (remote terminal unit)
mode. Either the RS232 or the RS485 interface can be used (configurable). Interface
galvanically isolated from ground.
22
23
24 Collective Status
25
26
27 Limit Value 1
28
29
30 Limit Value 2
Digital Outputs
Floating doublethrow contacts, max. contact load rating 30 VDC / 1 A. Relays are shown in
the unpowered state. The unpowered state is the failure mode (“fail safe“).
31 +
32 – Sample Component 1
33 +
34 – Sample Component 2
Analog Outputs
4–20 mA, common negative pole, galvanically isolated from ground, freely connectable to
ground, max. gain relative to protective ground potential 25 V, max. working resistance
750
Ω
. The output signal cannot be lower than 0 mA.
N
L
PE
Power Supply (see page 20)
85–250 VAC, 48–63 Hz, max. 6 A breaker
At the factory two jumpers are inserted in the analog output terminals 31–32 and
33–34. If no signal leads are installed, these jumpers close the output current
circuits and prevent the display of status message 30 “Broken analog output line”
(see page 47).
The respective jumper must be removed prior to connecting the electrical lines to
the analog output terminals.