Rockwell Automation 20L PowerFlex 700L Frame 1X Liquid-Cooled Adjustable Frequency AC Drive - Manual (Page 13)

PowerFlex 700L Frame 1X Drive Installation Instructions – Publication 20L-IN013A-EN-P – June 2009
13
The drive coolant must be compatible with the following materials:
•
Copper
•
Brass
•
Aluminum
•
Arimid fiber gasket with nitrile binder (Garlock, Inc. Blue-Gard 3000
®
)
Blue-Gard 3000 is a registered trademark of Garlock, Inc.
•
Synthetic rubber hose (Parker Hannifan Corp 801 General Purpose Hose)
•
Viton seal (Complete Drive only)
Biocide
A biocide may be needed to control biological growth. Use of a biocide is
permitted. For specific recommendations, consult a reputable water
treatment company.
Drive Cooling Loop Specifications
Table 4 Coolant Requirements for One Frame 1X Drive
* Inhibited ethylene glycol or propylene glycol must contain a corrosion inhibitor. See Corrosion Inhibitor on page 12
for an approved source.
Coolant
Temp. Range Coolant Flow Rate Max. Particle
Size in Coolant Pressure Drop (1) From Drive Inlet to Drive
Outlet at Minimum Coolant Flow Rate Coolant Type Minimum Nominal
0…60 °C
(32…140 °F) 7.57 LPM
(2 GPM) 9.46 LPM
(2.5 GPM) 5 microns Less than 0.34 bar at 9.46 LPM, 20 °C
(Less than 5 psi at 2.5 GPM, 68 °F) WEG50
(2)
or
WPG50 (3)
(1) Pressure drop does not include any system connections such as hoses or piping. Cooling systems must be sized to provide minimum flow
considering entire system pressure drop.
(2) WEG50 equals good quality or distilled water with approved inhibited* ethylene glycol, 50% glycol by volume.
(3) WPG50 equals good quality or distilled water with approved inhibited* propylene glycol, 50% glycol by volume.