Connection of the connection cable Connection
4 - 4
Connection of robot CPU Q172DRCPU to drive unit DU3
E
ATTENTION:
● Always place the protective cap on the SSCNET-III connection when no cable is connected.
Otherwise, soiling may lead to an impairment in the transmission and to malfunctions.
● Do not remove the SSCNET-III cable as long as the power supply of the CPU system or the
drive unit is switched on.
Never look directly into the light emitted from the robot CPU or the SSCNET-III connections
of the drive unit, or into the open end of the SSCNET-III cable. The light emitted from these
complies with the IEC60825-1 standard of laser class 1 and may result in an irritation to the
eyes if viewed directly.
R001510E
Fig. 4-4: Connection of robot CPU to drive unit DU2
NOTE Connect the shielding of the TU cable with a grounding clamp to the to the housing of the drive
unit to prevent electromagnetic disturbances. Connect the shielding on the side of the robot CPU
with a grounding clamp to the ground potential.
Remove 20 to 30 mm of wire insulation from the TU cable and
connect the shielding with a grounding clamp to the housing
of the drive unit.
Wire insulation
DU3 drive unit
Robot CPU
Q172DRCPU
Wire insulation
20–30 mm
DCOUT
CNDISP
Booster unit 2
CON3
Robot CPU interface unit
Ferrite core
PLC power
supply
CN1
SSCNET-III cable
MR-J3BUS 10M-A
Ferrite
EMI cable for robot
2Q-EMICBL 10M
EMI
Robot CPU
DISP I/F
DISP cable for robot
2Q-DISPCBL 10M
TU cable for robot
2Q-TUCBL 10M
2 ferrite cores
TU I/F
Rack
Cable bushing
(floor of housing)
OPT1A
Booster unit 1
Shielding
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