epic power ERS 2G Manual De Instalación página 20

ERS 2G
The energy recovery system ERS 2G by epic-power is simply connected to the VVVF
drive as shown in Fig. 8.
ERS 2G
fundamental feature is that the connection with the drive is very simple and
it's only made through three wires (positive, negative and ground), with no need for
any kind of adaptation or preparation.
Fig. 9 shows the possible energy flows when the motor is generating and an ERS 2G
has been installed. Fig. 9.a depicts the case when all the regenerated energy can be
fully stored in the ERS 2G. There may be occasions when the ERS 2G cannot store all
the regenerated energy, as for example:
When the energy storage module is full
•
When regeneration power is greater than the one ERS 2G can absorb.
•
These cases are not a problem. The excess energy that cannot be stored in our system
will be dissipated in the braking resistor. This is the situation shown in
2G does not substitute the braking resistor that has to be installed as usual
Three-phase mains
Braking resistor
VVVF
Motor
Fig. 8. ERS 2G connection to a lift traction system
Instalation guide
ERS_2G
ERS_P3k
©epic power ©EpicPower
.b. Our ERS
Fig. 9
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