Yaskawa SGDH Linear Sigma Series - Manual (Page 138)

6 Specifications and Dimensional Drawings of Cables and Peripheral Devices
6-10
6.5 Flexible Cables
(1) Life of Flexible Cable
The flexible cable supports 10,000,000 or more operations of bending life with the recommended bending radius.
The following table shows the recommended bending radius R of each cable.
• Conditions
1. Repeat moving one end of the cable forward and backward for 320 mm (12.60 in) with using the test
equipment shown in the following.
2. Connect the lead wires in parallel, and count the number of cable return motion times until a lead wire is
disconnected. Note that one reciprocating is counted as one test.
Note: 1. The life of flexible cable differs largely depending on the amount of mechanical shocks,
mounting to the cable, and fixing methods. The life of flexible cable is limited under the
specified conditions.
2. The life of flexible cable indicates the number of bending times in which lead wires are
electrically conducted and by which no cracks and damages that affects the performance
of cable sheathing are caused. Disconnecting the shield wire is not taken into account.
(2) Wiring Precautions
Even if the recommended bending radius R is respected in the mechanical design, incorrect wiring may cause the
early disconnection. Observe the following precautions when wiring.
(a) Cable twisting
Straighten the flexible cables wiring.
Twisted cables causes the early disconnection. Check the indication on the cable surface to make sure that
the cable is not twisted.
Cable Type Model
Recommended
bend radius in
mm (in)
Linear servomotor main circuit cables
JZSP-CLN11-†† 35 (1.38)
JZSP-CLN21-†† 35 (1.38)
JZSP-CLN39-†† 50 (1.97)
JZSP-CLN14-†† 35 (1.38)
JZSP-CLN15-†† 35 (1.38)
Cables for connecting linear scales JZSP-CLL00-†† 60 (2.36)
Cables for connecting hall sensors JZSP-CLL10-†† 60 (2.36)
Cables for connecting serial converter
units
JZSP-CLP70-†† 46 (1.81)
Bending
radius
R
Shifting distance 320 (12.60 in)
Fixed end
Shifting end