Rockwell Automation SA500 AC Power Modules - Manual (Page 72)

H-2 SA500 Power Modules
H.3 Installing the Equipment
The equipment must be mounted inside a steel cabinet. The cabinet door must be
grounded to the main cabinet. Any accessory plates attached to the cabinet door must
be grounded to the same point on the cabinet as the door. The cabinet must also have
floor pans with the cutouts for cable entries kept to an absolute minimum.
The SA500 DC Bus Supplies and AC Power Modules and EMI Filter should be
mounted to the panel in accordance with the installation instructions provided in
chapter 3 of this manual.
H.4 Wiring Practices
This section describes how the SA500 drive must be wired to conform to the
standards listed in section H.1. Figure H.1 shows an SA500 wiring example.
H.4.1 AC Input Power
A 110 Amp three-phase line filter (M/N 612421-2A) must be installed in the power
lines. The leads between the filter and the DC Bus Supply should be as short as
possible and must be routed away from the leads to the input of the filter. Both ground
connections must be used and the ground leads should be kept as short as
possible.(£ 6.0”). This filter may be mounted to a separate bracket and placed on edge
to reduce the panel footprint so long as the bracket is properly grounded to the control
panel.
A three-phase input power surge protector (M/N 600686-45A) must be installed on the
230 VAC lines at the line input to the EMI Filter. The leads on the surge protector
should be kept as short as possible.
The 115 VAC source voltage used to power the digital I/O must be supplied through a
1 kVA control transformer (M/N 417155-V) with a MOV (M/N 411026-X) mounted
across transformer terminals X1 and X2. The X2 terminal of the control transformer
must also be grounded to the control panel.
H.4.2 Motor Output
The motor leads (three phases and ground) must be installed in a single metallic
conduit. The conduit should be terminated at the cabinet.
H.4.3 Grounding
The incoming 230 VAC three-phase power must be connected to the grounding stud
on the DC Bus Supply.
The DC Bus Supply and AC Power Module must be grounded in accordance with
section 4.1 of this manual. The ground lead from the motor must be connected to the
AC Power Module and then connected to the DC Bus Supply via the jumper supplied
with the AC Power Module.