User Manual
EM303B General Purpose Inverter
38
3.3.11
Standard Control Circuit Wiring
See Figure 3-21 for standard control circuit wiring of EM303B.
X1
X2
X3
X4
X5
X6
X7
Multi-function
Input Terminals
Auxiliary DC
Power Supply
2k
Ω
2W
0
~
10V
Potentiometer for
Frequency Setting
10V
VS
IS
GND
COM
24V
PLC
Communicational
Terminals
Ground
A+
A-
PE
PE
MO
M1
GND
VF
IF
GN
D
Analog
Feedback
Voltage/Current
Optional output
V/I
V/I
M
EM303B
U
V
W
≥90kW:
With Built-in DC Reactor
Ground
EB
EC
Relay Output
EA
2 Multi-function
Outputs
COM
Y2
Y1
0/2
~
10V
0/4
~
20mA
-
+
PB
External
Braking Unit
External
Braking Resistor
MCCB
MC
R
S
T
3-phase
Power
Supply
RUN
F/R
D1
D2
D3
FRS
RST
Analog
Input
0/4
~
20mA
Ground
Figure 3-21 Standard Control Circuit Wiring of EM303B
Remarks:
EM303B-018~400: No PB terminal.