ABB Endura AZ20 series

Combustion Oxygen Monitor
Endura AZ20 Series Probe 6 Dismantling and Reassembly – Transmitter
IM/AZ20M–EN Rev. B 41
6.3.4 Power Supply and Output Connections to Remote Transmitter
To make power supply and output connections:
1. Feed the incoming AC power supply cable through cable
gland
A.
2. At terminal block
B, make connections to the AC power
supply line (brown) and neutral (blue) terminals
C.
3. Connect the incoming AC power supply earth wire to
internal earth connection D.
4. Feed the signal cable(s) through cable gland(s) E and
F and make connections to the relay outputs (terminal
block B) and current output and option board terminals
(terminal block
G) as required.
5. Refer to Section 6.1.1, page 36, steps 5 to 8 to refit the
cartridge and transmitter cover.
Warning.
 The transmitter must be earthed.
 Isolate the incoming mains power supply cable before
making connections at the transmitter or the probe.
Fig. 6.8 Remote Transmitter – Power Supply and Output Connections

+
C
B
A
CC
N/C N/C
N/L2L/L1
A E
D
C
B
G
F
D
Fuse F1 (AC) 1.0 A Type F
100 to 240 V AC (±10 %)
50 / 60 Hz
Blue
Earth (Green /
Yellow)
Brown
Relay 2 Relay 1
Current Output
(4 to 20 mA) HART*
Option Board
Connections**
Mains
Connections
**Option Board Connections
Analog output
Digital I/O
A
+
DIO1
B
–
DIO2
C
COM
*Refer to the transmitter User Guide (IM/AZ20E–EN)
for HART communication details