30
EATON
www.eaton.com
Instruction Booklet
IB020003EN
Effective January 2021
AMPGARD RVSS
Reduced Voltage Soft-Starter
User Manual
Figure 17.
AMPGARD starter cell
• Rear vertical incoming bus
• Isolation switch with handle
• Incoming line fuses
• Main contactor
• CPT
• PT
• CT
• Bus connections to SCR
truck
Starter low voltage
compartment
• Control relays
• Local operator devices
• Local indicating lights
• Motor protective relay
(if supplied)
• Terminal boards
RVSS control compartment
• Monitor User Interface
• Base Control Module
• I/O Board
• 24V Power supply
• Terminal boards
• Relays, RF Filter
RVSS cell
• Bypass contactor on shelf
• Truck Power-Poles
• Cables to output terminals
• 48V Power supply
RVSS front panel view with doors open.
The RVSS starter low voltage door has four cutouts. Two are used
for control devices and a motor protective relay (if furnished), and
two available for additional custom devices (see
). Standard
control devices shown are: the detented Emergency Stop
pushbutton, the green Run/Bypass indicator lamp, the amber main
contactor indicator lamp, and the red RVSS Fault indicating lamp.
Inside the starter cell low voltage compartment are relays (CR. MX,
BX and TRPX), custom components if any and the RVSS Normal /
Bypass mode selector switch (SS2) (see