Omron SYSDRIVE 3G3EV-AB CUE Series Installation Manual page 32

Design
If the regenerative energy exceeds the Inverter capacity, overvoltage will be detected in the main circuit.
In such a case, use a Braking Resistor or Braking Resistor Unit.
Note Be sure to create a sequence that will turn OFF the Inverter power supply when resistor over-
heating occurs. When using a Braking Resistor, be sure to install a thermal relay to detect resis-
tor overheating. When using a Braking Resistor Unit, use an error output contact. Otherwise, a
fire may occur.
Model 3G3EV-
A2001(M)-CUE
A2002(M)-CUE
A2004(M)-CUE
A2007(M)-CUE
A2015(M)-CUE
AB001(M)-CUE
AB002(M)-CUE
AB004(M)-CUE
AB007(M)-CUE
AB015(M)-CUE
A4002(M)-CUE
A4004(M)-CUE
A4007(M)-CUE
A4015(M)-CUE
Note Do not use a Resistor whose resistance is below the minimum connected resistance. Other-
wise, the Inverter will be damaged.
H Wiring on the Output Side of Main Circuit
D Connecting the Terminal Block to the Load
Connect output terminals U, V, and W to motor lead wires U, V, and W, respectively.
D Never Connect Power Supply to Output Terminals
Caution Never connect a power supply to output terminals L1, N/L2, and L3.
!
If voltage is applied to the output terminals, the internal mechanism of the Inverter
will be damaged.
D Never Short or Ground the Output Terminals
Caution If the output terminals are touched with bare hands or the output wires come into
!
contact with the Inverter casing, an electric shock or grounding will occur. This is ex-
tremely hazardous. Also, be careful not to short the output wires.
D Do Not Use a Phase Advance Capacitor or LC/RC Noise Filter
Never connect a phase advance capacitor or LC/RC Noise Filter to the output circuit. Doing so may
result in damage to the Inverter or cause other parts to burn.
3-16
Model 3G3IV-
Braking Resistor
(Duty Cycle 3%ED)
PERF150WJ401 (400 Ω) ---
PERF150WJ201 (200 Ω) PLKEB20P7 (200 Ω 70 W)
PERF150WJ101 (100 Ω) PLKEB21P5 (100 Ω 260 W) 60 Ω
PERF150WJ401 (400 Ω) ---
PERF150WJ201 (200 Ω) PLKEB20P7 (200 Ω 70 W)
PERF150WJ101 (100 Ω) PLKEB21P5 (100 Ω 260 W) 60 Ω
PERF150WJ751 (750 Ω) PLKEB40P7 (750 Ω 70 W)
PERF150WJ401 (400 Ω) PLKEB41P5 (400 Ω 260 W) 240 Ω
Braking Resistor Unit
(Duty Cycle 10%ED)
Chapter 3
Minimum connected
resistance
200 Ω
80 Ω
200 Ω
80 Ω
750 Ω
510 Ω