4
PROCEDURES AND SETTINGS BEFORE
OPERATION
4.4 Wiring
4.4.1 Wiring precautions
4
- 6
1
OVE
R
VI
EW
2
SYS
TEM
CONFIGURA
T
ION
3
SP
ECIFI
C
A
T
IO
N
S
4
PRO
C
EDURES AND
SETT
ING
S
BEFO
RE
O
PERA
T
IO
N
5
FUNCTIONS
6
UTIL
IT
Y P
A
C
K
A
G
E
(G
X Conf
igu
rat
or-CT)
7
PROGRA
MMING
8
T
R
OUB
L
ES
HO
O
T
ING
(5) The following diagram shows an example of wiring for measures against
noise.
Figure 4.3 Example of wiring for measures against noise
(6) When wiring the QD63P6 and an encoder, separate the power supply
cable and signal line. (Refer to POINT in Section 4.4.2.)
Terminal
block
Programmable
controller
AC
motor
Relay box
QD63P6
Cart
Encoder
Inverter
Terminal
block
Make the distance between the encoder and relay box as
short as possible.
If the distance is long, a voltage drop may occur. Therefore,
check that the voltages while the encoder is in
operation/stop are within the rated voltage at the terminal
block of the relay box using the measure such as a tester.
If the voltage drop is large, take the measures such as
thickening the wire size or using the 5 VDC encoder of less
current consumption.
Install I/O wires at least
150 mm (5.91 inch)
away from the high
voltage equipment such
as relay and inverter.
(Apply this wiring in a
control panel as well.)
Avoid using a solenoid valve and inductive load together in the same
metallic pipe. If a sufficient distance cannot be secured with high voltage
cable due to such as duct wiring, use CVVS or other shielded cable for the
high voltage cable.
To the QD63P6
Current for encoder
5V
E
+5V
0V
E
To encoder
Ground the shielded twisted pair cable on the encoder side (relay box).
(The following connection example is for 5 V sink load.)
To A
To B
A
B
Connect the shielded cable of the encoder and that of the
shielded twisted pair cable inside the relay box. If the
shielded cable of the encoder is not grounded inside the
encoder, ground it in the relay box as indicated by the
dotted line.