11
TY-KJ55-002A Rev.3
7. Wiring and Connection
■
7.1 Transmission Cable (Applicable Transmission Cable)
For the transmission cable used between KJ55 and the safety barrier, select a
two-core shielded cable that satisfies the following conditions:
(1) The sheath diameter must suit the KJ55 cable gland (JIS F 8801 20f), and the
core wire cross section must suit the internal terminal block. The cable must
also be suitable for the withstand voltage between the cable conductors (core
wires) and between the conductor and ground.
(2) The following values must be used for the allowable parameters (See "3.2
Intrinsically Safe Specifications") defined as the external wire of the intrinsically
safe circuit.
Core wire
count
Sheath
diameter
Core wire
cross
Withstand voltage AC (V)
1 minute
(Core)
（
mm
）
(mm
2
)
(Conductor - ground)
2
12 to 15
0.5 to 0.75
500
Allowable capacitance Allowable inductance
(Μf)
(mH)
0.015
2.5
<Table 7-1>
<Table 7-2>
