Basic Wiring Diagram
MVX9000 User Manual 3-5
Storage and 
Installation
Basic Wiring Diagram
Users must connect wiring according to Figure 3-2.
Figure 3-2: Circuit Diagram
B2
U/T1
V/T2
W/T3
DO1
DOC
NOTE: Do not plug a modem or telephone line to the RS-485 communication
 port, permanent damage may result. Terminals 2 & 5 are the power
  sources for the optional copy keypad and should not be used while
 using RS-485 communication.
B1
RO3
RO1
RO2
Factory Default: Inverter
Fault
3
2
1
VR
AO+
COM-
+
–
VR(1 KΩ)
Braking Resistor
(Optional)
(Please see Appendix C for Detail)
Main Circuit Power
Forward/Stop
Reverse/Stop
Reset
Pre-Set 1
Pre-Set 2
Pre-Set 3
Common Signal
Master Frequency Setting
Factory Default Is Potentiometer
Which Is on the Digital Keypad 
Analog Voltage
0 –10V DC
Potentiometer:
3 – 5 KΩ
Analog
Current
4 – 20 mA
AC 
Motor
Grounding Resistance
230V: Less Than 100Ω
460V: Less Than 10Ω
575V: Less Than 100Ω
NO Relay Output
(120V AC/24V DC 5A)
Digital Output
(48V DC 50 mA)
Factory Default: Inverter
Running
If Adjustment
Needed
•  1/2 – 3 hp 230V MVX9000 drives are both single- and three-phase input ready.
S/L2
T/L3
NFB
R/L1
S/L2
T/L3
R/L1
NC Relay Output
(120V AC/24V DC  5A)
Factory Default:
Output Frequency
Analog
Output
DC 0 – 10V
Main Circuit
(Power)
Ter minals
Control Circuit
Ter minals
Shielded
Leads
1,6: NC
2: GND
3:  SG-
4:  SG+
5: +EV
DI1
DI2
DI3
DI4
DI5
DI6
COM
COM
AI2 (Current)
+10V 10 mA (Max)
Factory Default
AI1 (POT)
RJ-12
RS-485
Series
Interface
6    1
For single-phase input models, select any two input power terminals. For
three-phase input, use all three power input terminals.