Roberts Gorden UltraVac NEMA 4 - Manual (Page 16)

ROBERTS GORDON ® ULTRAVAC™ C ONTROLLER I NSTALLATION M ANUAL
10
FIGURE 3: Variable Frequency Drive Components (Factory pre-wiring shown)
M16/12.P M16/12.P
Power Input
1 2 5 6 11 13A 13B 13E 25 16 17
PE PE W V U
L2/N L1 B- PE B+
Variable
Frequency Drive
(1 Ø input model shown)
Terminal Inputs
230 V 3 Ø or
460 V 3 Ø outputs
Grounding
Block
120 V signal from relay board
output #8
Relay
120 V
Rotary
Disconnect
Input Fuse Holder
(1 Ø input model shown, 3 Ø input models have an
additional input fuse holder and VFD power input.)
VFD Enclosure
(Standard Enclosure Shown)