Commissioning And Operation; Write-Protection Switch, Service Led And Local Operating Interface; Checks Prior To Commissioning; Switching On The Power Supply - ABB SensyMaster FMT230 Commissioning Instruction

SENSYMASTER FMT230, FMT250 THERMAL MASS FLOWMETER | CI/FMT230/250-EN REV. A

5 Commissioning and operation

5.1 Write-protection switch, service LED and local
operating interface
Fig. 23
1 Write protection switch 2 Service LED 3 Local operating
interface
Write protection switch
The write protection switch is located in the sensor terminal
box.
If write protection is active, the parameterization of the device
cannot be changed via Modbus or the local operating interface.
Turning the write protection switch clockwise deactivates the
write protection function, while turning the switch counter-
clockwise activates it.
Service LED
The service LED, which indicates the operating condition of the
device, is located in the sensor terminal box.
Service LED Description
Flashes rapidly Starting sequence, device not yet ready for
(100 ms) operation
Lit up continuously Device operating, no critical error
Flashes slowly A critical error has occurred, see chapter
(1 second) "Diagnosis / error messages" in the
operating instruction
Local operating interface
The sensor can also be parameterized without a Modbus
connection via the local operating interface, see chapter
'Parameterization via the local operating interface' on page 25 .
1
2
3
G11628
5.2

Checks prior to commissioning

The following points must be checked before commissioning
the device:
— The wiring must have been completed as described in the
chapter 'Electrical connections' on page 19 .
— The correct grounding of the sensor.
— The ambient conditions must meet the requirements set
out in the technical data.
— The power supply must meet the requirements set out on
the identification plate.
NOTICE
Damage of the device due to undervoltage!
In case of lower voltage than defined on the type plate, the
current draw of the device device increases.
Thus, the internal fuses may be damaged.
5.3

Switching on the power supply

1. Switch on the power supply.
2. Carry out parameterization of the flowmeter (see chapter
'Parameterization of the device' on page 24 ).
The flowmeter is now ready for operation.
5.3.1

Inspection after switching on the power supply

The following points must be checked after commissioning the
device:
— The parameter configuration must correspond to the
operating conditions.
23