Manual version V1.0 Update 2021-08-26
3
Φ 4 O p t i o n a l i n s t a l l a t i o n h o l e
S l i d i n g l a t c h
P u s h r i g h t
P u s h l e f t
V C 1 - 1 6 1 4 M A R
5.3
Cable Connection And Specification
Connecting power cable and grounding cable, it is recommended that the user add an air
switch and fuse protection circuit to the PLC power input. The connection example of AC
power supply and auxiliary power supply is shown in the figure below.
Connect the PLC
terminal to the grounding electrode. To ensure reliable grounding cable
connection, which makes the equipment safer and protects it from EMI. use AWG12~16 cable,
and make the cable as short as possible.
Avoid sharing route with the grounding cable of other equipment (particularly those with strong
EMI). See the following figure.
Cable specification
When wiring a PLC, use multi-strand copper wire and ready-made insulated terminals to
ensure the quality. The recommended model and the cross-sectional area of the cable are
shown in the following table.
Wire
Cross-sectional
area
Recommended
model
Cable lug and heat-shrink tube
AC power cable (L, N)
1.0
～
2.0mm²
AWG12, 18
H1.5/14 round insulated lug, or tinned
cable lug
Grounding cable (
)
2.0mm²
AWG12
H2.0/14 round insulated lug, or tinned
cable end
Input signal cable (X)
0.8
～
1.0mm²
AWG18, 20
UT1-3 or OT1-3 solderless lug
Φ3 or Φ4 heat shrinkable tube
Output signal cable (Y)
0.8
～
1.0mm²
AWG18
、
20
Fix the prepared cable head onto the PLC terminals with screws. Fastening torque:
0.5~0.8Nm.
The recommended cable processing-method is shown in the following figure.
6 Power-on Operation And Maintenance
6.1 Startup
Check the cable connection carefully. Make sure that the PLC is clear of alien objects and the
heat dissipation channel is clear.
1. Power on the PLC, the PLC POWER indicator should be on.
2. Start the AutoStudio software on the PC and download the user program to the PLC.
3. After checking the download program, switch the mode selection switch to the ON position,
the RUN indicator should be on. If the ERR indicator is on, the user program or the system is
faulty. Loop up in the VC series PLC Programming Manual and remove the fault.
4. Power on the PLC external system to start system debugging.
6.2 Routine Maintenance
Do the following:
1. Ensure the PLC a clean environment. Protect it from aliens and dust.
2. Keep the ventilation and heat dissipation of PLC in good condition.
3. Ensure that the cable connections are reliable and in good condition.
1. Never connect the transistor output to an AC circuit (like 220Vac). The design of the output
circuit must abide by the requirements of electric parameters, and no over-voltage or over-
current is allowed.
2. Use the relay contacts only when necessary, because the use life of relay contacts depends
largely on its action times.
3. The relay contacts can support loads smaller than 2A. To support larger loads, use external
contacts or mid-relay.
4. Note that the relay contact may fail to close when the current is smaller than 5mA.
Notice
1. The warranty range is confined to the PLC only.
2. Warranty period is 18 months, within which period Emerson Network Power conducts free
maintenance and repairing to the PLC that has any fault or damage under the normal
operation conditions.
3. The start time of warranty period is the delivery date of the product, of which the product
SN is the sole basis of judgment. PLC without a product SN shall be regarded as out of
warranty.
4. Even within 18 months, maintenance will also be charged in the following situations:
Damages incurred to the PLC due to mis-operations, which are not in compliance with
the User Manual;
Damages incurred to the PLC due to fire, flood, abnormal voltage, etc;
Damages incurred to the PLC due to the improper use of PLC functions.
5. The service fee will be charged according to the actual costs. If there is any contract, the
contract prevails.
6. Please keep this paper and show this paper to the maintenance unit when the product
needs to be repaired.
7. If you have any question, please contact the distributor or our company directly.
Veichi Electric Co., LTD.
Web:
Version: V1.0 Date : 2021-05-25
PLC
PLC
Other
equipment
Other
equipment
PLC
Other
equipment
Best
Good
Bad
≤
5.0
≤
5.0
UT solderless lug
Heat shrinkable tube
Cable SN label
Cable
OT solderless lug
Heat shrinkable tube
H type round insulated lug
Tinned cable end
Cable
PG
18
47
682
Warning
