Rottler S7A, Operation And Maintenance Manual

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Section 2 Installation S7A S8A Manual
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2-7
Power Supply
This machine requires 208 to 240 VAC single phase, 50/60 Hz, (measured between L1 and L2). Current
required is 15 amps.
When using two legs of a three phase supply the voltage from each leg to ground must be between
100-120 VAC. Connect per following electrical hook-up instructions. If the voltage is outside this range
the machine will not operate properly and may be damaged.
Do not attempt to attach three phase voltage to this machine. The
three phase spindle motor receives it’s power from a three phase
variable frequency drive in the rear enclosure. The frequency inverter is powered by single phase.
Connect single phase wiring to the breaker switch as shown below.
Grounding
This machine must be connected to a good earth ground. Connect
the earth ground wire to grounding bar inside the electrical enclosure.