nord NORDAC FLEX SK 2 E-111-123-A Series, Руководство пользователя

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7 Technical Data
BU 0200 en-US-4920 237
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7.2 Electrical data
The following table lists the electrical data for variable frequency drives. The details based on
measurement series for the operating modes are for orientation purposes and may deviate in practice.
The measurement series were made at the rated speed with 4-pole NORD standard motors
The following factors have a particular influence on the determined limiting values:
Wall mounting
• Installation location
• Influence from adjacent devices
• Additional air currents
and also with
Motor mounting
• Model of motor used,
• Size of motor used
• Speed with internally ventilated motors
• Use of external fans.
Information
Single-phase operation
With single-phase operation (115 V / 230 V), the mains impedance must be at least 100 µH per string. If this is
not the case, a line choke must be located upstream.
Failure to comply with this may cause damage to the device due to impermissible current loads on the
components.
Information
Information about current and power
The powers stated for the operating modes are only a rough categorization
The current values are more reliable details for the selection of the correct variable frequency drive/motor
combination!
The following tables contain the data which is relevant as per UL (please see chapter 1.6.1 "UL and
CSA approval").
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