GEM 4242 Operating Instructions Manual page 23

12.1.2 Classic initialization process
▶ The initialization must be repeated every time that the
process valve is changed (for example, seal replacement
or actuator replacement).
The initialisation process must be actively started via the
communication interface or the on-site option. The started ini-
tialization process is carried out automatically.
After implementation of the initialization, the device checks
whether the minimum stroke of the calibrated positions has
been complied with. If this condition is complied with, then
the initialization has been successfully carried out and the
end positions have been successfully calibrated.
12.1.2.1 On-site initialization of the end positions
PROG
▶ If the magnet is held against the housing cover for too
long, the programming mode is left and the previous con-
dition is restored.
1. Connect supply voltage.
2. Briefly (>500 ms) hold a magnet (e.g. 1242000ZMA) at the
position labelled "PROG" on the housing cover.
ð High visibility LEDs light up white (magnet detected)
3. As soon as the high visibility LEDs change colour to yel-
low, remove the magnet again.
4. Initialization process is started.
ð High visibility LEDs flashing alternately (white/yellow).
ð The process valve is automatically moved to the OPEN
and CLOSED position.
5. Initialization process is automatically ended.
6. After successful termination, the current valve position is
signalled directly via the high visibility LEDs (lit green or or-
ange) and electronically reported back.
ð The end positions are set.
In the event of deviating status indications, observe the LEDs
and Troubleshooting chapters.
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NOTICE
NOTICE
12.1.2.2 Initialization of end positions via ASI
▶ Set the function of digital input 3 (corresponding to bit
DO2) to INIT (default setting).
Alternatively, any other digital input 1–8 can be assigned
to this function. The corresponding bit, DO0 to DO7, must
be used depending on the input used.
1. Connect supply voltage.
2. Set DO2 (toggle from 0->1).
3. Initialization process started.
ð High visibility LEDs flashing alternately (white/yellow).
ð Process valve is automatically moved to the OPEN and
CLOSED position.
4. Initialization process is automatically ended (verification
via DI2 possible).
5. After successful termination, the current valve position is
signalled directly via the high visibility LEDs (lit green or or-
ange) and electronically reported back.
ð The end positions are set.
ð In the event of deviating status indications, observe the
LEDs and Troubleshooting chapters.
13 Operation
13.1 Wireless interface
▶ For FIELDBUS Code A5D order versions, the wireless in-
terface is deactivated by the software ex works. The wire-
less interface can be managed (activated/deactivated)
automatically via a corresponding parameter. If the wire-
less interface is subsequently activated via a parameter
setting, it is recommended to adjust the Bluetooth name
and password configuration immediately afterwards. A
corresponding setup manager in the app provides sup-
port for the configuration process.
▶ For order versions with the FIELDBUS Code A5 wireless
interface activated, it is recommended to adjust the
Bluetooth name and password configuration immediately
after commissioning. A corresponding setup manager in
the app provides support for the configuration process.
▶ During an initialization process that is started by the mag-
netic trigger, no actions can be taken in the app. After
ending the process, the app can be used again without re-
strictions.
While the wireless connection is active, starting the initial-
ization via the magnetic trigger is deactivated.
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13 Operation
NOTICE
NOTICE
NOTICE
GEMÜ 4242