Specification of SN200G high-performance vector convertor
Mechanical and electrical installation
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d)
Connection terminal P1, (+) of external DC reactor
For the frequency convertor at above 220V37KW and 380V75kW, connection strap between P1
and (+) terminals needs to be removed when installing DC reactor externally, and connect DC
reactor between two terminals.
e)
U, V, W on output side of frequency convertor: output side of frequency convertor shall not
connect capacitor or surge absorber, otherwise it will lead to frequent protection and even damage
of convertor. Due to influence of distributed capacitance, if motor cable is too long, electric
resonance will produce easily, which will damage motor insulation or produce large leak current
and frequent protection of convertor. If motor cable is >100m, AC input reactor should be installed.
f)
Earthing terminal PE\
For different models, the marking of earthing terminal may be different, but the meaning is same. In
above descriptions, PE\
means that earthing marking is PE or
.
Keep reliable earthing of earthing terminal and resistance value of ground wire should be <0.1Ω,
otherwise it will lead to abnormal operation and even damage of device. Do not use earthing terminal
PE or
and N terminal on null line of power in common.
3.2.5 Control terminal and wiring
1) Layout diagram of terminals on control circuit is as below:
(Note: there’s no short-circuit strap between CME and COM, OP and +24V of SN200G frequency
convertor. Users select wiring way of CME and OP respectively through J10, J9
）
Figure 3-5 Layout diagram of terminals on control circuit
2) Functional descriptions of control terminals
Figure 3-3 Functional descriptions of control terminals of SN200G frequencyc convertor
Type
Terminal
symbol
Terminal name
Functional
description
Power
+10V-GND
Connect
＋
10V
power externally
Offer +10V power externally, max. output current: 10mA
Be commonly used as working power of external potentiometer,
resistance value range of potentiometer: 1kΩ~5kΩ
+24V-COM
Connect
＋
24V
power externally
Offer +24V power externally, be used as working power of digital
input/output terminal and power of external sensor
Max. output current: 200mA
OP
Input terminal of
external power
C24V or COM through J9 jumper on control panel.
If using external signal to drive DI1~DI5, OP needs to connect
with external power, and pull out J9 jumper
Analog
input
AI1-GND
Analog input
terminal 1
1. Range of input voltage: DC 0V~10V
2. Input impedance: 22kΩ
AI2-GND
Analog input
terminal 2
1. Input range: DC 0V~10V/4mA~20mA, depend on J8 jumper on
control panel
2. Input impedance: 22kΩ for voltage input, 500Ω for current input