GEM 1441 cPos-X, Operating Instructions Manual

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GEMÜ 1441 cPos-X

12 Commissioning

12 Commissioning

- Prior to commissioning, familiarize yourself with the opera-

tion of the product.

 CAUTION

Leakage

▶

Emission of dangerous materials.

●

Provide precautionary measures against exceeding the

maximum permitted pressures caused by pressure

surges (water hammer).

 CAUTION

Cleaning agent

▶

Damage to the GEMÜ product.

●

The plant operator is responsible for selecting the clean-

ing material and performing the procedure.

 CAUTION

Hazardous situation

▶

Risk of injury or damage possible.

●

For correct commissioning, the

product must be calibrated to the pro-

cess valve by means of the initializa-

tion process.

●

During this commissioning, the valve is

automatically opened and closed sev-

eral times. It must therefore be en-

sured in advance that this does not

lead to a dangerous situation.

NOTICE

Incorrect initialization

●

Always carry out initialization without operating medium

pressure on the process valve. Carry out initialization of

the process valve in neutral position (NO/NC).

NOTICE

Note

▶

Due to environmental influences on the system side (set-

ting behaviour of elastomers, thermal influences) and

configuration-specific infeed behaviour, which could im-

pact the control characteristics, it is recommended that

the self-calibration is carried out again by an initialization

after commissioning in order to prevent incorrect error

messages. If error messages occur which are attributable

to the fact that the controller can no longer correctly ap-

proach or determine the end positions (for example, des-

pite the positioning signal specification of 0%, the valve

position is >1.0%

1)

, it is recommended to also carry out

the initialization again.

▶

1)

Dependent on the dead zone setting and close tight

function. If the close tight function is deactivated (

≜

set-

ting value = 0.0%), the valve is closed only within the set

value of the dead zone

NOTICE

●

For delivery of the product assembled on a valve at the

factory, the complete construction is already ready for op-

eration at a control pressure of 5.5 to 6 bar without oper-

ating pressure. A reinitialization is recommended if the

plant is operated with a different control pressure or if the

mechanical end positions have been changed (e.g. seal

replacement on the valve or actuator replacement). The

initialization is retained even in the event of voltage

cutoff.

NOTICE

●

For delivery of the product without factory setting (e.g. for

delivery without valve) initialization must be carried out

once for correct operation. This initialization must be re-

peated every time that the process valve is changed (e.g.

seal replacement or actuator replacement).

1. Use suitable connectors.
2. Connect the control medium lines tension-free and

without any bends or knots.

3. Connect the pneumatic tubes and activate the pneumatic

auxiliary power of max. 7 bar.

4. Connect the connection cable tension-free and without

any bends or knots.

5. Switch on the energy supply via set value signal 4–20 mA

DC.

ð

Wait until the status display switches from 

"Starting…"

to a constant operating information display (this takes

approx. 20 seconds).

6. Start the automatic initialization (speed-AP

function)

1)

:

ð

Hold a magnet at the marked initialization position

(INIT) until 

"Remove Magnet"

 is shown on the status

display 

(2)

.

ð

The initialization phase lasts for a few minutes, during

which the process valve is opened and closed several

times. The initialization process is ended automatic-

ally.

(1)

 Alternatively, the initialization that is required for the com-

missioning can be started and carried out via the app. All of

the results for each individual step are therefore also dis-

played in detail. In addition to the described options for activ-

ating the initialization, the digital input can also be used to

start the process via an external signal (parameter setting:

"Digital input function"

 – Start Init).

2)

While the wireless connection is active (this can be seen on

the connection status indicator in the status display), the

magnetic trigger is deactivated. The magnetic trigger can also

be permanently deactivated via the app.