00198146-01_AI_120V_TX12_de_en - 第58页

4 Appendix 4.1 Excerpts from the Service Manual Assembly Instructions / Montageanleitung SIPLACE TX Series Option 120 V 04/2017 58 4.1.2 Checking For Absence of Voltage DANGER Power supply The assembly contains energy-st…

Assembly Instructions / Montageanleitung SIPLACE TX Series

Option 120 V 04/2017

4 Appendix

4.1 Excerpts from the Service Manual

4 Appendix

4.1 Excerpts from the Service Manual

The following chapters are excerpts from the service manual. For more information, refer to the full

service manual for your machine.

●

Service Manual SIPLACE TX-Series [DE:00198149‑xx] [EN:00198150‑xx]

4.1.1 Electrical Checks

DANGER

Observe the safety instructions

There is a risk of dangerous touch voltages and short circuits occurring in power supplies

which have been made accessible and are connected for measurement purposes.

Nonobservance of these safety instructions may cause injury to personnel and dam-

age to the machine!

Measurements may only be performed by specially trained service technicians with appro-

priate qualifications and expertise.

► Observe the safety instructions in this manual and in the user manual.

Tools and Equipment required

●

Digital voltmeter, class 1,5

●

Test cable with test probes or terminals

CAUTION

Take care not to damage the supply lines!

Make sure that the main power cable and supply cables in the machine are not trapped and

that the insulation is not damaged.

Preparation

Fig.19: Main switch

► End all placement operations and switch the ma-

chine off at the main switch(1).

► Disconnect the machine from the main power

supply.

► Open the lock on the power supply cover(2).

► Pull the power supply out towards the front (see

Pulling out the Power Supply).

► Reconnect the machine to the power supply.

 DANGER!

Careful: There may be dangerous touch voltages

in the vicinity of the open power supply!

► Switch the machine on again at the main switch

and start it up.

Voltages

► Measure the required voltages.

Please refer to the relevant circuit diagram for your machine for details of the various voltages.

4 Appendix

4.1 Excerpts from the Service Manual

Assembly Instructions / Montageanleitung SIPLACE TX Series

Option 120 V 04/2017

4.1.2 Checking For Absence of Voltage

DANGER

Power supply

The assembly contains energy-storing components (CAP and capacitors on the FDB as-

sembly)!

After switching off at the main switch or disconnecting from the main supply, hazardous

voltages are still present at some points of the assembly interior for a period of approx. five

minutes.

► Before performing any service work or disconnecting press-fit connections, make sure

that you check for absence of voltage - as described further below! Maintenance or re-

placement may only be performed when the assembly is de-energized.

► All press-fit connections for the CAP assembly and PS1 are of touch-proof design but

when connections are plugged in or unplugged while there is still residual voltage

(CAP capacitors are still charged, display lamps on PS1 or CAP still shine), this can

cause damage or destruction of these or other connected components!

Protective Measures and Rules of Conduct

Tools / Requirements:

●

The certified electrician or person instructed and trained in electrical matters must be familiar

with the voltage tester and with the particular details of the system (defined contact points for

determining absence of voltage).

●

Use certified voltage testers and phase testers with a certain fixed measuring size and range.

The use of universal or multiple measuring devices for determining the absence of voltages is

not permitted.

Only use two-pole voltage testers (DUSPOL) e.g. FLUKE T150 or T5-1000.

●

The knowledge of the user manual and all safety instructions specified by the voltage tester

manufacturer is a requirement.

●

Observe the area of use for the measuring device (nominal voltage, protection class, voltage

type, switch-on period, temperature range, measurement category CAT IV).

●

Check the external energy source of the measuring device.

●

Wear closely fitting and closed workwear.

●

Technicians working alone must be able to take any occurring risks into consideration and to

master them. In the event of any confusion, consult your specialist superior.

Preparation:

●

Use the voltage testers in accordance with their intended use. Inspect them for damages prior

to use. Damaged devices or cables may not be used and are to be reported immediately.

●

Before performing any measurements, test the voltage testers for functionality on a comparat-

ive voltage source or perform an integrated function test.

●

Ensure safe handling/safe workplace. Take sufficient space for movement and lighting into ac-

count.

●

Secure the area against proximity and hazard from persons.

●

Pay attention to any nearby blank and active parts. Secure the measurement area, if neces-

sary.

Assembly Instructions / Montageanleitung SIPLACE TX Series

Option 120 V 04/2017

4 Appendix

4.1 Excerpts from the Service Manual

Execution / Working procedure:

●

The absence of voltage must be determined as closely as possible at the workplace, at all

pins, by a certified electrician or instructed electrical officer.

●

Make sure to select the correct measurement area or workplace.

●

Only touch the measuring device by the insulated test handles (up to inside handles). Do not

touch the test electrodes (testing tips).

●

During testing, take hold of the voltage tester fully (DUSPOL). Press the testing tips manually

against the part to be measured e.g. FLUKE T150 or T5-1000.

●

The contact electrodes or testing tips of voltage testers must always have a conductive elec-

trical contact with the system part to be tested.

●

The testing tips must always be securely clamped or plugged into the part to be measured.

Measuring lines must be well connected to the phase tester.

●

Ensure a secured and concentrated attachment and removal of the measuring device tips or

testing pins.

●

Use auxiliary clamps (banana plugs, crocodile clips, spider legs, measuring jacks) with suit-

able voltage and clamping reliability.

●

Read the measurement rotary field display at eye level and with no inhibited view. Watch out

for reflections and mirroring on measurement scale.

Measuring Device for Determining Absence of Voltage

DANGER

Only use the DUSPOL voltage tester!

Universal or multiple measuring devices for determining the absence of voltage are not ap-

proved.

The reason for this is that the correct voltage type (DC or AC) and the correct voltage range

need to be set in advance.

The direct current to be measured: 300VDC can cause serious or lethal injuries if the

measuring device is incorrectly set or defective.

► For this reason, only use the two-pin voltage tester (DUSPOL)!

Fig.20: Voltage tester of type "Fluke T-150".

Example:

The figure shows a two-pin voltage tester of

type "Fluke T-150".

This device can be procured world-wide via the

internet or your specialist dealer.

Other, similar devices from other manufacturers

can also be used.