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2. INSTALLATION
(3) Avoid any probability that the cable sheath might be cut by sharp chips, rubbed by a machine corner or
stamped by workers or vehicles.
(4) For installation on a machine where the servo motor will move, the flexing radius should be made as large
as possible. Refer to section 10.4 for the flexing life.
2.4 SSCNET
cable laying
SSCNET
cable is made from optical fiber. If optical fiber is added a power such as a major shock, lateral
pressure, haul, sudden bending or twist, its inside distorts or breaks, and optical transmission will not be
available. Especially, as optical fiber for MR-J3BUS
M MR-J3BUS M-A is made of synthetic resin, it
melts down if being left near the fire or high temperature. Therefore, do not make it touched the part, which
becomes high temperature, such as radiator or regenerative option of servo amplifier.
Read described item of this section carefully and handle it with caution.
(1) Minimum bend radius
Make sure to lay the cable with greater radius than the minimum bend radius. Do not press the cable to
edges of equipment or others. For SSCNET
cable, the appropriate length should be selected with due
consideration for the dimensions and arrangement of servo amplifier. When closing the door of control box,
pay careful attention for avoiding the case that SSCNET
cable is hold down by the door and the cable
bend becomes smaller than the minimum bend radius.
For the minimum bend radius, refer to section 11.1.5.
(2) Prohibition of vinyl tape use
Migrating plasticizer is used for vinyl tape. Keep the MR-J3BUS
M, and MR-J3BUS M-A cables away
from vinyl tape because the optical characteristic may be affected.
SSCNET cable Code Cable
MR-J3BUS M
MR-J3BUS M-A
MR-J3BUS M-B
Optical code Cable
: Phthalate ester plasticizer such as DBP and DOP
may affect optical characteristic of cable.
: Cable is not affected by plasticizer.
(3) Precautions for migrating plasticizer added materials
Generally, soft polyvinyl chloride (PVC), polyethylene resin (PE) and Teflon (fluorine resin) contain non-
migrating plasticizer and they do not affect the optical characteristic of SSCNET
cable.
However, some wire sheaths and cable ties, which contain migrating plasticizer (phthalate ester), may
affect MR-J3BUS
M and MR-J3BUS M-A cables.
In addition, MR-J3BUS
M-B cable is not affected by plasticizer.