Replacing The Filter Mats - Siemens SINAMICS DCM Betriebsanleitung

Maintenance and servicing
9.4 Replacing components
The devices are operated with high voltages.
All connection work must be carried out when the cabinet is de-energized.
All work on the device must be carried out by trained personnel only. Non-observance of
these warning notices can result in death, severe personal injury, or substantial property
damage.
Even when the main switch is disconnected, there may be dangerous voltage in the
cabinet.
System circuit diagrams and the descriptions of the options must be observed.
Hazardous voltage is still present in SINAMICS DC MASTER DC Converter snubber
capacitors in the cabinet after disconnecting. The cabinet may therefore only be worked on
following a 2 minutes wait time after it has been disconnected from the power source.
Operation of electrical installations in accordance with EN 50110-1
This standard applies to the operation of and all work on, with or in the vicinity of electrical
installations.
The "five safety rules" must be observed in particular for all maintenance and repair work:
1. Disconnect the system.
2. Protect against reconnection.
3. Make sure that the equipment is de-energized.
4. Ground and short-circuit.
5. Cover or fence off adjacent components that are still live.
9.4.1

Replacing the filter mats

Replacing the filter mats (for IP23/IP43/IP54)
The filter mats must be checked at regular intervals. If the mats are too dirty to allow the air
supply to flow normally, they must be replaced.
Note
If you do not replace dirty filter mats, this can cause a premature thermal shutdown of the
drive.
Ordering data are available in the spare parts lists.
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WARNING
DANGER
Operating Instructions, 04/2015, A5E36161239/RS-AA/001
SINAMICS DCM Cabinet