Section 4: Inputs / Outputs; Table 5. I/O Board Signals - Emerson AMPGARD RVSS Instruction Booklet

Instruction Booklet IB020003EN
Effective January 2021

Section 4: Inputs / outputs

AMPGARD RVSS inputs and outputs are handled by the RVSS I/O
Board. This board processes the DSP signals and passes them on for
processing.
Table 5 shows a list of RVSS signals handled by the I/O Board.
Figure 39 shows where these signals connect on the I/O Board.
Table 5. I/O board signals
Input name
EPO
IP0
IP1
IP2
IP3
IP4
IP5
IP7
Phase A PT voltage
Phase B PT voltage
Phase C PT voltage
Phase A current
Phase B current
Phase C current
Output name
K3
K2
K4
K1
K5
K6
Fiber optic signals
Phase A positive gate
Phase A negative gate
Phase A heat sink temp
Phase B positive gate
Phase B negative gate
Phase B heat sink temp
Phase C positive gate
Phase C negative gate
Phase C heat sink temp
Communications
with BCM
24VDC input power
26
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Wire numbers Connections
82, 83 J14-3 and J14-4
60, 61 J12-1 and J12-2
62, 63 J12-3 and J12-4
64, 65 J12-4 and J12-6
66, 67 J12-7 and J12-8
68, 69 J12-9 and J12-9
70, 71 J12-11 and J12-12
74, 75 J12-15 and J12-16
V11 J4-1
V2 J4-2
V31 J4-3
C34, C62 J7-5 and J7-6
C24, C62 J7-3 and J7-4
C14, C62 J7-1 and J7-2
Connections
K3, 24N (T3) J13-6 and J13-13
K2, 24N (T2) J13-7 and J13-15
K4, 24N (T4) J13-3 and J13-11
K1, 24N (T1) J13-8 and J13-16
K5, 24N (T5) J13-2 and J13-10
K6, 24N (T6) J13-1 and J13-9
Connections
A+ U39
A- U49
TA U56
B+ U51
B- U52
TB U57
C+ U54
C- U55
TC U58
J5
24N, 24P, G1 (GND) J8
Signal Function
name
Emergency Stop pushbutton input
DIN0 External Fault
DIN1 Starter main contactor status Input
DIN2 Bypass contactor status input
DIN3 Field-wire Reset
DIN4 SS2 Bypass mode selector switch input
DIN5 Profile mode selector input
DIN7 Start relay (CR) input
PT phase A secondary voltage
PT Phase B secondary voltage (grounded)
PT Phase C secondary voltage
Phase A CT secondary winding input and return
Phase B CT secondary winding input and return
Phase C CT secondary winding input and return
Function
RY1 Bypass contactor control relay BX control
RY2 Main contactor control relay MX control
TRPX relay control
Ready
Up-to-speed detection
I% FLA > 90% of Current Limit %
Function
Firing signals for Phase A positive SCR gate
Firing signals for Phase A negative SCR gate
Phase A heat sink thermistor signal
Firing signals for Phase B positive SCR gate
Firing signals for Phase B negative SCR gate
Phase B heat sink thermistor signal
Firing signals for Phase C positive SCR gate
Firing signals for Phase C negative SCR gate
Phase C heat sink thermistor signal
Signal cable to BCM
Input power to I/O Board
AMPGARD RVSS
Reduced Voltage Soft-Starter
User Manual