Hart Output; Commissioning; General Information; Switching On The Power Supply - ABB VA Master FAM540 Commissioning Instructions

6.5.4

HART output

Model FAM54xE/Fx
Specifications
Terminals 31 / 32
Configuration — Directly on the device
— Using DAT200 Asset Vision Basic software
and HART-DTM
Transmission FSK modulation on current output 4 ... 20 mA
in accordance with Bell 202 standard
Baud rate 1200 baud
Display Logic 1: 1200 Hz
Logic 0: 2200 Hz
Maximum signal 1.2 mA
amplitude
Load (R )at current 250 ... 1500 Ω
B
output
See the separate interface description for detailed information.
System integration
In conjunction with the DTM (Device Type Manager) available
for the device, the corresponding framework applications in
accordance with FDT 0.98 or 1.2 (DAT200 Asset Vision Basic)
can be used for communication (configuration,
parameterization).
Other tool/system integrations (e.g., Emerson AMS/Siemens
PCS7) are available on request.
The necessary DTMs and additional files can also be
downloaded from www.abb.com/flow.
Programmable binary output
Terminals 41 / 42 are used as a primary programmable binary
output. The pulse output, general alarm, min./max. alarm and
general alarm functions, as well as "no function" can be
configured using the software.
Binary output
Terminals 41 / 42
Output — NAMUR contact (DIN 19234)
or
— Standard optoelectronic coupler
(U
H
Switching behavior Configurable as normally closed or normally open
contacts
Internal resistance With contact open > 10 kΩ
Switching current Maximum 15 mA
Output voltage Minimum U
Pulse output
Terminals 41 / 42
Pulse width 5 ... 256 ms, maximum 50 % of the period
Frequency f Maximum 50 Hz
max
ss
= 16 ... 30 V DC)
2 V DC
s
7

Commissioning

DANGER
Improper installation and commissioning of the device
carries a risk of explosion.
For use in potentially explosive atmospheres, observe the
information in chapter „Use in potentially explosive
atmospheres according to ATEX and IECEx" on page 5 and
„Use in potentially explosive atmospheres in accordance with
FM and cCSAus" on page 16!
DANGER
Danger of explosion if the device is operated with the
transmitter housing open!
Before opening the transmitter housing, bear in mind the
following:
— Check that a valid fire permit is available.
— Make sure that there is no explosion hazard.
— Before opening the device, switch off the power supply
and wait for t > 2 minutes.
7.1

General information

The commissioning activities described here are performed
after the device has been installed and electrically connected.
Bear in mind the following during commissioning:
— The power supply must be switched off.
— When using liquid measuring media, the piping must be
vented carefully to avoid pressure shocks due to gas
bubbles.
— When using gaseous measuring media, increase the flow
pressure slowly.
— Vary the flow with help of adjustable valves (control valves)
to protect the float from shock waves. Otherwise, the
flowmeter may be damaged.
— If fast opening solenoid valves are used, pressure shocks
on the float must be prevented by using suitable damping
measures.
7.2

Switching on the power supply

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 31.
— 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.
VA Master FAM540 | CI/FAM540-EN Rev. B 33