2 Engineering
2.11 Three-phase motors
DC1…20… and DC1…OE1 Variable Frequency Drives
02/20 MN040059EN
www.eaton.com
59
2.11.6 Single-phase AC motors
It is strictly prohibited to use the DC1 variable frequency drives described in
this manual to run single-phase AC motors (induction motors), single-phase
asynchronous motors (capacitor motors), shaded-pole motors, etc.
There are other DC1 variable frequency drive models designed for use with
these motors: DC1-S1… and DC1-S2… with IP20 and IP66 degrees of
protection.
2.11.7 Connecting Ex motors
The following aspects must be taken into account when connecting
hazardous location motors:
•
All applicable industry-specific and country-specific regulations for
hazardous locations (ATEX 100a) must be complied with.
•
The specifications and instructions provided by the motor’s
manufacturer with regard to operation with a variable frequency drive –
e.g., whether motor reactors (dV/dt limiting) or sine filters are required –
must be taken into account.
•
Temperature sensors in the motor windings (thermistor, Thermo-Click)
must not be connected directly to the variable frequency drive, but
instead must be connected through a relay approved for the hazardous
location (e.g. EMT6).
→
For more information on how to run single-phase AC motors
using the DC1 variable frequency drive, please refer to manual
MN040058EN, “DC1-S…20… and DC1-S…OE1
Variable Frequency Drives – Installation and Parameter Manual”
This manual is available on the Eaton website at:
→
Customer support
→
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