GFK-3111A PACMotion VFD AC Variable Speed Drive User Guide 87
Input Power Supply Requirements
Table 60: Input Power Supply Requirements
Supply Voltage 200 – 240 RMS Volts for 230 Volt rated units, + /- 10% variation allowed.
380 – 480 Volts for 400 Volt rated units, + / - 10% variation allowed.
500 – 600 Volts for 600 Volt rated units, + / - 10% variation allowed.
Imbalance Maximum 3% voltage variation between phase – phase voltages allowed.
All PACMotion VFD units have phase imbalance monitoring. A phase imbalance of > 3% will
result in the drive tripping. For input supplies which have supply imbalance greater than
3% (typically the Indian sub- continent & parts of Asia Pacic including China) Emerson
recommends the installation of input line reactors. Alternatively, the drives can be operated as
a single phase supply drive with 50% derating.
Frequency 50 – 60 Hz + / - 5% Variation.
Additional Information for UL Approved Installations
PACMotion VFD is designed to meet the UL requirements. In order to ensure full compliance, the following
must be fully observed.
Table 61: Additional Information for UL Approved Installations
Input Power Supply Requirements
Short Circuit
Capacity
Voltage Rating Min kW (HP) Max kW (HP) Maximum supply
short-circuit current
All All All 100 kA rms (AC)
Suitable for use on a circuit capable of delivering not more than 100kA rms Symmetrical
Amperes, 600 Volts Maximum. When Protected by Class @B fuses, rated Maximum @A (where
@ = The fuse ratings and types are shown in section Input/Output Power and Current Ratings
on page 84).
Incoming power supply connection must be according to section Incoming Power Connection.
All PACMotion VFD units are intended for indoor installation within controlled environments which meet the
condition limits shown in section Environmental.
Intergral solid state short circuit protection does not provide branch circuit protection. Branch circuit protection
must be provided in accordance with the National Electrical Code and any additional local codes or equivalent.
Suitable Power and motor cables should be selected according to the data shown in section Input/Output Power
and Current Ratings.
Power cable connections and tightening torques are shown in section Installation Following a Period of Storage.
PACMotion VFD provides motor overload protection in accordance with the National Electrical Code (US).
• Where a motor thermistor is not tted, or not utilised, Thermal Overload Memory Retention must be enabled
by setting P4-12 = 1.
• Where a motor thermistor is tted and connected to the drive, connection must be carried out according to
the information shown in section Motor Terminal Box Connections on page 28.
For Canadian Installations : transient surge suppression shall be installed on the line side of this equipment and
shall be rated as shown below, suitable for over voltage category III and shall provide protection for a rated impulse
withstand voltage peak of 2.7 kV.
Supply Voltage Rating of the Drive Phase-Phase Surge Protection
Voltage Rating
Phase-Ground Surge Protection
Voltage Rating
200 - 240V AC + / - 10% 230V AC 230V AC
380 - 480V AC + / - 10% 480V AC 480V AC
500 - 600V AC + / - 10% 600V AC 600V AC
Warning The opening of the branch-circuit protective device may be an indication that a fault has been
interrupted. To reduce the risk of re or electric shock, current-carrying parts and other components of the
controller should be examined and replaced if damaged. If burnout of the current element of an overload relay
occurs, the complete overload relay must be replaced.
Attention Le déclenchement du dispositif de protection du circuit de dérivation peut être dû à une coupure
qui résulte d’un courant de défaut. Pour limiter le risque d’incendie ou de choc électrique, examiner les pièces
porteuses de courant et les autres éléments du contrôleur et les remplacer s’ils sont endommagés. En cas de
grillage de l’élément traversé par le courant dans un relais de surcharge, le relais tout entier doit être remplacé.
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