Maintenance And Inspection; Storage; Charging Dc Link Capacitors; Service And Warranty - Eaton M-Max Series Operating Instructions Manual

TM
M-Max Series

Maintenance and inspection

Provided that the general rating data (see Section "Rating data on
the nameplate", page 14) and the special technical data
( a section "Special technical data" in the Appendix) of the
ratings concerned are observed, the M-Max
are maintenance free. However, external influences may affect the
Maintenance measures
Clean cooling vents (cooling slits)
Check the fan function
Filter in the switching cabinet doors (see manufacturer specifications)
Check the tightening torques of the terminals (control signal terminals, power
terminals)
Check connection terminals and all metallic surfaces for corrosion
Charge capacitors
There are no plans for replacing or repairing individual
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components of M-Max frequency inverters.
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If the M-Max frequency inverter is damaged by external
influences, repair is not possible. Dispose of the device in
accordance with the respectively applicable environmental laws
and provisions for the disposal of electrical or electronic devices.

Storage

If the frequency inverter is stored before use, suitable ambient
conditions must be ensured at the site of storage:
• Storage temperature: -40 - +70 °C,
• Relative average air humidity: < 95 %, non condensing
(EN 50178),
• To prevent damage to the DC link capacitors, storage times
longer than 12 months are not recommended (see Section

"Charging DC link capacitors").

Charging DC link capacitors
After long storage times or long down times without a power
supply (> 12 months), the capacitors in the DC link must undergo
controlled recharging, in order to avoid damage.
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For this the M-Max frequency inverters must be fed with a
regulated DC power supply unit via two mains connection
terminals (e.g. L1, L2/N). To avoid any possible excessive leakage
currents from the capacitors, the inrush current should be limited
to around 300 to 800 mA (depending on the rating). In this case,
the frequency inverter must not be enabled (no start signal). The
DC voltage must then be set to the values of the corresponding DC
link voltage (U ) and fed for around two hours (regeneration
DC
time).
• MMX12, MMX32 about 324 V DC (= 1.41 x U
phase line-to-line voltage (230 V)
• MMX34 about 540 V DC (= 1.35 x U
to-line voltage (400 V).
22
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frequency inverters
) with single-
LN
) with three-phase line-
LN
function and the lifespan of the M-Max
therefore recommend that the devices are checked regularly and
the following maintenance measures are carried out at the
specified intervals.
Maintenance interval
If required
6 - 24 months (depending on the environment)
6 - 24 months (depending on the environment)
Regularly
6 - 24 months (depending on the environment)
12 months, see Section "Charging DC link capacitors"
h MMX11: Due to the internal voltage doubler circuit, the
capacitors cannot be recharged via the connection
terminals. Contact your local sales partner.

Service and warranty

In the unlikely event that you have a problem with your Moeller M-
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Max frequency inverter, please contact your local sales office.
When you call, have the following information ready:
• the exact frequency inverter part no.
(see nameplate),
• the date of purchase,
• a detailed description of the problem which has occurred with
the frequency inverter.
If some of the information printed on the nameplate is not legible,
please state only the information which is clearly legible.
Information concerning the guarantee can be found in the Moeller
General Terms and Conditions of Sale.
24-hour hotline: +49 (0)1805 223 822
E-Mail: FieldserviceEGBonn@Eaton.com
04/10 MN04020001Z-EN
TM
frequency inverter. We