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86
EATON
www.eaton.com
Instruction Booklet
IB020003EN
Effective January 2021
AMPGARD RVSS
Reduced Voltage Soft-Starter
User Manual
Appendix A - Modbus register map and bit assignments
This section contains the RVSS Modbus register map, and tables with selected status and control bit definitions.
Table 21. Modbus register map
Register
Name
Attribute
Description
300
System Status
Byte RO
Present Motor Control Status Bits (Running1, Running2, Remote, Tripped,Warned)
Bit
Description
0
Running
1
Remote Enabled
2
Faulted
3
Warning
4
Inhibited
5
Ready
6
Motor at Speed
7
Manual Bypass
301
Motor Current Phase A
UINT16 RO
Units: Arms
Phase A (L1) Motor Current value with no decimal
302
Motor Current Phase B
UINT16 RO
Units: Arms
Phase B (L2) Motor Current value with no decimal
303
Motor Current Phase C
UINT16 RO
Units: Arms
Phase C (L3) Motor Current value with no decimal
304
Motor Current Average
UINT16 RO
Units: Arms
Average motor Current value with no decimal
305
LL Voltage - Phase A to Phase B
UINT16 RO
Units: Vrms
Voltage value Phase A to Phase B
306
LL Voltage - Phase B to Phase C
UINT16 RO
Units: Vrms
Voltage value Phase B to Phase C
307
LL Voltage - Phase C to Phase A
UINT16 RO
Units: Vrms
Voltage value Phase C to Phase A
308
LL Voltage Average
UINT16 RO
Units: Vrms
Line Voltage Line to Line Average
309
Motor Current Average
UINT16 RO
Units: %
Motor Current Average in Percent of FLA
310
Motor State
UINT8 RO
Motor State (Stopped, Accelerating, Running)
311
Line Frequency
UINT16 RO
Units: Hz
Line Frequency scaled in 0.01 Hz
312
Active Fault/Trip
UINT16 RO
Active Fault Trip / Trip
313
Active Warning/Alarm
UINT16 RO
Active Warning / Alarm
314
Tripped Status Bits
UINT32 RO
Tripped Status Bits
316
Warning Status Bits
UINT32 RO
Warning Status Bits
318
Motor Controller Status
UINT32 RO
Motor Controller Status Bits
320
Thermal Memory percent (Motor
EOL %)
UINT8 RO
Units: %
Calculated Motor Thermal Memory
321
Time to Trip (overload) Seconds
UINT16 RO
Units: Seconds
Time to Trip (overload) Seconds
322
Truck EOL %
UINT16 RO
Units: %
Truck EOL %
323
Thermal capacity level remaining
before Trip (Motor EOL Rem %)
UINT8 RO
Units: %
Remaining Thermal Capacity in Percent of Rated
324
Temperature of pole A (Temp A)
UINT16 RO
Units:
O
C
Pole A Temperature in degrees C.
325
Temperature of pole B (Temp B)
UINT16 RO
Units:
O
C
Pole B Temperature in degrees C.