R
Rated current................................................................................................. 32
RCD..................................................................................................................142
Read coil status (01 hex)..........................................................................119
Read holding registers (03 hex)............................................................122
Read/Write multiple registers (17 hex).............................................. 124
Recommended initialization.............................................................99, 99
Reference handling..................................................................................... 28
Relay output................................................................................................ 135
Remote (auto on) control..........................................................................27
Remote terminal unit............................................................................... 111
Residential environment.................................................................... 32, 33
Residual current device..............................................................................40
RS485...........................................................................................101, 104, 135
S
Secondary pump.......................................................................................... 25
Serial communication.............................................................................. 141
Shock................................................................................................................ 31
Short circuit (motor phase-phase)......................................................... 41
Short-circuit protection..............................................................................73
Side-by-side installation............................................................................ 55
Slip compensation.....................................................................................142
Soft starter.......................................................................................................18
Software version...........................................................................................10
Star/delta starter...........................................................................................18
Status menu................................................................................................... 82
Status word.................................................................................................. 128
Switching frequency
Switching on the output............................................................................41
Symbols........................................................................................................... 12
Synchronous motor speed.....................................................................140
T
Telegram length.........................................................................................105
Telegram structure....................................................................................105
Text block......................................................................................................106
THD....................................................................................................................34
Throttling valve.............................................................................................23
Tightening torques......................................................................................70
Time-based functions................................................................................. 26
Tools..................................................................................................................56
Total voltage distortion..............................................................................34
Trip.................................................................................................................. 143
Trip lock.........................................................................................................143
Two-finger initialization......................................................................99, 99
Type code........................................................................................................45
V
Variable air volume......................................................................................20
Variable control, flow and pressure.......................................................18
Variable torque..............................................................................................60
Varying flow (1 year)....................................................................................17
VAV.................................................................................................................... 20
Vibration................................................................................................... 22, 31
Voltage
Safety warning..................................................................................... 12
Voltage distortion........................................................................................ 34
VT mode...........................................................................................................60
W
Wire size...........................................................................................................73
Wiring schematic..........................................................................................64
Wizard
Open-loop application......................................................................82
Closed-loop application....................................................................82
Motor set-up......................................................................................... 82
AJ363928382091en-000101/130R0983
146 | Danfoss A/S © 2021.04
Index
VLT® Flow Drive FC 111
Design Guide