Fig. 4-9: Connection of Intrinsically Safe Terminal Block of the Pressure Switch Unit and Barrier
3) Controller side: Crimped terminals
For connecting the intrinsically safe cable
to the relay barrier in the DX200
Intrinsically safe
terminal block
on the pressure
switch unit side
DX200
The intrinsically safe device connected to the relay
barrier must satisfy the following conditions.
Intrinsically
safe circuit: Pressure detection / flow switch circuit
P2
P1
N1
N2
P3
N3
1
P1
P2
N1
N2
P3
N3
1
2
2
3.2 dia. min
5.3 min
6 max
4.4 max
3.5 min
7.8 max
4 max
3.7 dia. min
0.8
2.3
10
- For terminal block P1 to N3
For connecting the intrinsically safe cable
to the insulation barrier in the DX200
- For terminal block 1 to 2
2 Cable connection
1) Intrinsically safe cable
1 Cable type (applied):
CVV-S, 1.25 mm² (2, 4, 6, 8, 10, 12 cores),
CVV-SB, 1.25 mm² (2, 4, 6, 8, 10, 12 cores), or
UL2586-SB, 1.25 mm² (2, 4, 6, 8, 10, 12 cores)
(SUMIDEN HITACHI CABLE Ltd.)
Note) The barriers between P2 and N2 in the DX200 are
short-circuited by the wire.
Do not remove the wire.
On the manipulator side, however, since a short-circuit
does not exist, there is no wire.
Also, no wiring exists on each manipulator side and
the DX200 side between P2 and between N2.
(Recommended terminal)
1.25AF2.3B(JST
Made)
For connecting the intrinsically safe
cable to the intrinsically safe terminal block
2) Pressure switch unit side : Crimped terminals
- For terminal block P1 to 2
- The cable to be connected with terminal blocks
P1 to N3, and 1 to 2 are dif
ferent.
- P1 to N3 and 1 to 2 are separated by the shield.
Allowable voltage: 13.2 V
Allowable current: 14.2 mA
Allowable electric power: 46.9 mW
Internal inductance: 32.9 μH
Internal capacitance: 32.6 nF
To Next Page
Loading...
