ABB Navigator 550 Operating Instructions Manual page 45

Navigator 500
Hydrazine analyzer
...Range Change Setup
OI/AHM550–EN Rev. A
Analog output operation
Analogue output 2 is used for the range changing functionality and is
scaled depending on the range selected. The mA range is set
automatically to 4 to 20 mA.
Analog output 2
Range Zero
1 0 % of mA range
2 0 % of mA range
3 0 % of mA range
Note. When range changing is enabled, the Analog Output 2
parameter option in the Input / Outputs level is not available –
see Section 7.1.5, page 46.
Relay operation
Relays 3 and 4 are used for the range changing functionality.
Connect Relay 3 – N/O to Relay 4 – COM
The range selection outputs can be determined as shown in the
following table:
Range
1 Relay 3 – N/C
2 Relay 4 – N/C
3 Relay 4 – N/O
SK1
RS485 SMART SENSOR
INTERFACE MODULE ANALOGUE OUTPUT BOARD
CM40/0215 ISS.1 CM40/0235
SK4 SK5 SK5
RELAY RELAY
OUT 3 OUT 4
5 6
SK2
I/O MODULE 2 I/O MODULE 3 I/O MODULE 3
1 2 3 4 5 + – + – N L
COMMS OUT 1 OUT 2
RELAY 1 RELAY 2 RELAY 3 RELAY 4
Relay 3 Relay 4
Note. When range changing is enabled, Relay 3 and 4 parameter
options in the Input / Outputs level are not available –
see Section 7.1.5, page 46.
Span
100 % of mA range
100 % of mA range
100 % of mA range
Voltage-free contact
Relay 3 – COM
Relay 3 – COM
Relay 3 – COM
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