Parker Hannifin
Chapter 3 Electrical Installation - 33 -
Multiple Drive/Controller Installations
In a typical cabinet installation, a single mains line connects to a terminal bus
inside the cabinet. From the terminal bus, make individual connections for
Mains and Control Power to the corresponding
connector(s) on each
drive/controller. Be sure to install fuses for each drive between the terminal
bus and the drive.
Tie each drive’s Protective Earth
conductor terminal directly to the system
safety earth location as shown in Figure 18. Under normal operation, no
curre
nt should flow through the Protective Earth ground.
Safety Earth Connection
For multiple drive installations, Parker Hannifin recommends a single point or
“star” safety earth configuration. Figure 18 represents a typical star safety
earth conn
ection .
Figure 18 Multiple Drives Safety Earth Connection
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