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- The XC1A connector is located in the control card and the X33 terminal is near the X1 power
connection terminal.
- KA1 is an external auxiliary contactor.
- For sizes 1 to 5, it is necessary to design the pre-charge circuit correctly. The contactor is
commanded via CC9 card (see figure 2). For further information contact WEG.
3. ELECTRICAL INSTALLATION
All the information related to power connection/grounding, wire cross sections and voltage
selection that appears in the CFW-09 manual is valid for the CFW-09HD.
CFW-09HD terminal connections are mechanically similar to those of the CFW-09 line,
however, the identifications and uses are different (figure 3).
- X1 Power connection terminals: R and S are used for the supply of the pre-charge and ventilation;
- Preferably, also supply the T phase, for a faster pre-charge;
- Power supplies R, S and T must be in: 380V, 440V or 480V in 50/60Hz;
- For the 500V - 600V and 660V - 690V models, the supply voltage for the pre-charge/ventilation/
electronics must always be compatible with the motor voltage, except for the drives bigger than
500HP , and supplied by the DC link. In that case the supply voltage is always biphasic 380V.
Refer to the specific manual.
- Supply the motor in the X1 terminals: U, V and W;
- Supply the DC link in the X1 terminals: + UD and -UD;
- For sizes 1 to 7, X1 terminal: BR is used for rheostatic breaking.
NOTE!
In the 200V and 400V lines it is indispensable to select the internal command transformer tap
of the drive. This is set in the LVS1 card for currents up to 142A. Above this current the tap must
be set in the CIP2 card.
4
Vdc
Figure 2 – External pre-charge circuit (sizes 1 to 5)
R
S
T
Electronics and
pre-charge ventilation
Figure 3 - Typical CFW-09HD terminal
CFW-09
+UD
- UD
U
V
W
+UD -UD
Motor
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