Sscnet Cable Laying - Mitsubishi Electric Melservo-J3 Series MR-J3-B Instruction Manual

2. INSTALLATION

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
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
from vinyl tape because the optical characteristic may be affected.
(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
In addition, MR-J3BUS
Optical code
M and MR-J3BUS M-A cables.
M-B cable is not affected by plasticizer.
M MR-J3BUS
M, and MR-J3BUS
SSCNET
MR-J3BUS M
MR-J3BUS M-A
MR-J3BUS M-B
: Phthalate ester plasticizer such as DBP and DOP
Cable
may affect optical characteristic of cable.
: Cable is not affected by plasticizer.
2 - 4
M-A is made of synthetic resin, it
M-A cables away
cable Code Cable