Rockwell Automation 20L PowerFlex 700L Frame 1X Liquid-Cooled Adjustable Frequency AC Drive - Manual (Page 15)

PowerFlex 700L Frame 1X Drive Installation Instructions – Publication 20L-IN013A-EN-P – June 2009
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For locations of the coolant inlet and outlet connections on PowerFlex 700L
Liquid-Cooled Frame 1X drives, refer to item 8 in
Figure 1 on page 8 .
The rated working pressure of the Frame 1X drive is 6.89 bar (100 psi).
Coolant supply and return lines should be sized for 76 LPM (20 GPM) /
6.89 bar (100 psi) service with a maximum operating temperature of 60 °C
(140 °F). The required operating flow rate and pressure drop is specified in
Table 4 on page 13 .
Coolant inlet and outlet connections are 1/4-inch NPT female. Apply Teflon
thread sealing tape or pipe thread sealant to the threads of the coolant pipe
that is being connected to the drive. Tighten to prevent leaks, but do not
overtighten.
The PowerFlex 700L Frame 1X drive is suitable for use on a circuit capable
of delivering up to a maximum of 200,000 rms symmetrical amperes, 480
volts with recommended fuses/circuit breakers.
If a Residual Current Detector (RCD) is used as a system ground fault
monitor, only Type B (adjustable) devices should be used to avoid nuisance
tripping.
Unbalanced, Ungrounded, Impedance or Phase-Grounded Distribution
Systems
If phase-to-ground voltage will exceed 125% of normal line-to-line voltage
or the supply system is ungrounded, refer to Wiring and Grounding
Guidelines for PWM AC Drives (publication DRIVES-IN001).
In addition, on an ungrounded distribution system where the line-to-ground
voltages on any phase could exceed 125% of the nominal line-to-line
voltage, an isolation transformer should be installed. See Wiring and
Drive Coolant Connections
Step 4 Wire the Drive
!
ATTENTION: National Codes and standards (NEC, VDE, BSI
etc.) and local codes outline provisions for safely installing
electrical equipment. Installation must comply with specifications
regarding wire types, conductor sizes, branch circuit protection
and disconnect devices. Failure to do so may result in personal
injury and/or equipment damage.
Special Considerations
!
ATTENTION: To guard against personal injury and/or
equipment damage caused by improper fusing or circuit breaker
selection, use only the recommended line fuses/circuit breakers
specified in
Table 6 on page 20 .