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3. ELECTRICAL INSTALLATION 11
WARNING
The drive HV supply input is not reverse polarity protected.
Reverse polarity connections will damage the drive.
Current and Capacitance
A supply must have a minimum amount of capacitance to support a drive at peak power
draw.
Drive Type
DC Supply Current
Supply Capacitance
ViX500
5.6A RMS
6600
µ
F
ViX250
2.8A RMS
3300
µ
F
Table 3-2. Drive Supply Currents
+24V Requirements
Both drive types require a +24V controller and logic supply. The supply may also be
required for an encoder and a Fieldbus Expansion Module (FEM).
Absolute voltage range
20 to 27V
Nominal drive current
250mA (excluding encoder, & FEM)
Encoder supply loading
150mA (if required)
FEM current
50mA
Safety Earth Requirements
Earth the drive using the earth pin on X1 (pin 8).
Power Supply Options
A set of torque curves (Figure 3-2) for various motor/drive combinations can be used for
calculating an applications likely power requirements.
Higher torque/current requirements will need to use the ViX500 drive and a high current
linear supply, such as the PL1100. Further power supply information is given in Appendix A.
Summary of Contents for ViX250CM
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