2-90 UR FAMILY – COMMUNICATIONS GUIDE
MEMORY MAP CHAPTER 2: MODBUS COMMUNICATION
2
" 66C9 Load Encroachment Target 0 to 2 --- 1 F109 0 (Self-reset)
" 66CA Load Encroachment Events 0 to 1 --- 1 F102 0 (Disabled)
" 66CB Reserved (6 items) 0 to 65535 --- 1 F001 0
Third Harmonic Neutral Undervoltage (Read/Write Grouped Setting)
G30, G60 66DA Third Harmonic Neutral Undervoltage 
Function
0 to 1 --- 1 F102 0 (Disabled)
" 66DB Third Harmonic Neutral Undervoltage 
Pickup
0.001 to 3 pu 0.000
1
F003 3000
" 66DD Third Harmonic Neutral Undervoltage 
Delay
0 to 600 s 0.01 F001 0
" 66DE Third Harmonic Neutral Undervoltage Max 
Power
0 to 1.25 pu 0.001 F003 200
Bus Configuration (Read/Write Setting) (6 Modules)
B90 66DE ...Repeated for Bus Zone 4
Third Harmonic Neutral Undervoltage (Read/Write Grouped Setting)
G30, G60 66E0 Third Harmonic Neutral Undervoltage Min 
Power
0 to 1.25 pu 0.001 F003 200
" 66E2 Third Harmonic Neutral Undervoltage Volt 
Supervision
0 to 1.25 pu 0.001 F001 500
" 66E3 Third Harmonic Neutral Undervoltage 
Block
0 to 4294967295 --- 1 F300 0
" 66E5 Third Harmonic Neutral Undervoltage 
Target
0 to 2 --- 1 F109 0 (Self-reset)
" 66E6 Third Harmonic Neutral Undervoltage 
Events
0 to 1 --- 1 F102 0 (Disabled)
" 66E7 Reserved (4 items) 0 to 65535 --- 1 F001 0
Generator Unbalance (Read/Write Grouped Setting)
G30, G60 66F0 Generator Unbalance Function 0 to 1 --- 1 F102 0 (Disabled)
" 66F1 Generator Unbalance Source 0 to 5 --- 1 F167 0 (SRC 1)
" 66F2 Generator Unbalance Inom (rated full load 
current of the machine)
0 to 1.25 pu 0.001 F001 800
" 66F3 Generator Unbalance Stage 1 Pickup 0 to 100 % 0.01 F001 800
" 66F4 Generator Unbalance Stage 1 K value 0 to 100 --- 0.01 F001 100
" 66F5 Generator Unbalance Stage 1 Tmin 0 to 50 s 0.001 F001 250
" 66F6 Generator Unbalance Stage 1 Tmax 0 to 1000 s 0.1 F001 6000
" 66F7 Generator Unbalance Stage 1 K Reset 0 to 1000 s 0.1 F001 2400
" 66F8 Generator Unbalance Stage 2 Pickup 0 to 100 % 0.01 F001 300
" 66F9 Generator Unbalance Stage 2 Pickup Delay 0 to 1000 s 0.1 F001 50
" 66FA Generator Unbalance Block 0 to 4294967295 --- 1 F300 0
" 66FC Generator Unbalance Target 0 to 2 --- 1 F109 0 (Self-reset)
" 66FD Generator Unbalance Events 0 to 1 --- 1 F102 0 (Disabled)
" 66FE Reserved (3 items) 0 to 65535 --- 1 F001 0
Stator Ground Source (Read/Write Grouped Setting)
G30, G60 670A Stator Ground Source 0 to 5 --- 1 F167 0 (SRC 1)
Subharmonic Stator Ground (Read/Write Grouped Setting)
G60 6710 Subharmonic Stator Ground Function 0 to 1 --- 1 F102 0 (Disabled)
" 6711 Subharmonic Stator Ground Stage 1 Pickup 1 to 20 kOhm 1 F001 10
" 6712 Subharmonic Stator Ground Stage 1 Pickup 
Delay
0.1 to 600 s 0.1 F001 100
" 6713 Subharmonic Stator Ground Stage 2 Pickup 1 to 20 kOhm 1 F001 3
Products Address Register name Range Units Step Format Default