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2.
Introduction of Shihlin Inverter
Introduction of Inverter
2.5.7 Wiring precautions
Main circuit wiring:
1. Do not connect the power supply wires to the
‘
inverter
’
s output terminals U-V-W
’
which are
designed for connecting motors, otherwise, the inverter may be damaged.
2. Please do not mount filtering capacitors, surge absorbers and electromagnetic contactors at the
output end of the inverter.
3. Please do not use
‘
electromagnetic contactors
’
or
‘
no-fuse switches
’
with an online power to start
or stop the motor.
4. Please ensure that the case of inverter and the motor are grounded, to avoid personnel electric
shock.
5. To appropriately select the diameter of the main wires and the corresponding wire terminals, the
no-fuse switches and the electromagnetic contactors, please refer to Section 2.6. And if the
inverter is far away from the motor, please employ a wire with larger diameter to ensure the
voltage drop along the wire within 2V. (The total length of the wire shall not exceed 500 meters)
6.
‘
Pressing connection terminals with insulated sleeve
’
shall be utilized for the wiring at the power
source side and the load side.
7. In a short period after the power supply is shut off, high voltage still exists between the terminals
P-N, thus please do not touch them within 10 minutes to avoid personnel electric shock.
Control circuit wire arrangement:
1. For wiring of signal input,
‘
insulated wires
’
must be used
，
and the
‘
metal mesh
’
of which must be
put to earth.
2. For wiring of the control board, wires with a diameter of 0.75mm
2
is suggested to be used. And for
the stripping of the insulating layer, please comply with the instruction of the following figure.
3. The control board wire (including signal input wire) shall be far away from the main circuit board
wire. Binding the control board wires together with the main circuit wires is strictly forbidden.
4. In the inverter, the
‘
terminal SD
’
,
‘
terminal SE
’
and the
‘
terminal 5
’
are the referencing grounds
for the inner power sources which are isolated from each other.
5. The best torque force is 2Kgf-cm when the line locked.
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