2 Engineering
2.11 Three-phase motor
56 DC1 Variable Frequency Drive 04/16 MN04020003Z-EN www.eaton.com
2.11.3 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.
2.11.4 Connecting EX motors
The following aspects must be taken into account when connecting
hazardous location motors:
• A DC1 variable frequency drive can be installed in an explosion-proof
enclosure within the hazardous location or in a control panel outside the
hazardous location.
• 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
Application Note AP040037EN, “DC1 Variable Frequency Drives
– Operating Single Phase Motors”.
ftp://ftp.moeller.net/DRIVES/POWERXL/01_APPLICATION_NOTE/
Deutsch/DC1/AP040037DE_DC1_Betrieb_von_Einphasenmotoren.pdf
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