4/ Maintenance - epic power ERS 2G Manual De Instalación

ERS 2G

4/ MAINTENANCE

The ERS does not need any specific maintenance procedure. It must be regularly
verified that the cooling openings are free of dust or other material that can block the
required air-flow.
Anyway, sometimes OTHER MAINTENANCE OPERATIONS require switching off the
FREQUENCY INVERTER. In this case, it is important to switch off the ERS following the
next steps:
9) Switch off the ERS (3)
10) Switch off and/or disconnect the frequency inverter
11) Following the instructions given by the frequency inverter manual, wait the
required time until the DC bus voltage is at safe low levels
12) It is not necessary to disconnect the wires connecting the ERS, but MAKE SURE, that
the ERS IS SWITCHED OFF. Otherwise, the drive could be energized, and personal
damage can occur.
13) At this point you can proceed with the programmed tasks
14) Switch on the frequency inverter
15) After 30 seconds (required for DC bus pre-charge of the drive) you can switch on
the ERS switch (3).
16) At this point the ERS 2G is ready to operate.
Instalation guide
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