Mettler Toledo ACM500 Guia De Instalacion página 30

5. When installing a connection to COM5, determine which cable comes from the COM5 port (J3)
6. Follow the wiring connections shown in Figure 3-12 and Table 3-3. Refer to Figure 3-11 to
7. After all interface cables are connected, reinstall the cover and interface board assembly to the
8. Tighten the compression nuts on the outside of the cable glands to secure the cables.
3.5.1.3. Creating Cables for the I.S. Current Loop Connection
Customer specific connection cables for the intrinsically safe current loop interface must be created
according to the following guidelines (Table 3-4 and Figure 3-13)
Each I.S. current loop interface cable used must contain two twisted pair conductors, and each
conductor must be a minimum of 0.5 mm
required for each circuit used. Refer to Table 3-2 to determine if one or two circuits are required for
your application.
2 twisted pair, 20GA or
64061976 | 08 | 11/2019
IND560x
COM4
COM5
of the IND560x. This cable will connect to COM5 (J3) in the ACM500.
help identify the terminal positions. Keep the internal wires as short as practical.
IND560x
COM4 (J4)
Terminal #
1
2
3
4
side of the ACM500 enclosure making sure that all wiring from the IND560x is contained under
the cover.
Cable Description Dimension A
2
2x2x0.5mm
(2.4 inches)
0.032AWG
1
2
3
4
1
2
3
4
Figure 3-12: I.S. Serial Interface Wiring
Table 3-3: COM4 and COM5 Port Wiring
ACM500 IND560x
COM4 (J4) COM5 (J3)
Terminal # Terminal #
1
2
3
4
2
(20 GA or 0.032 AWG) in size. One length of cable is
Table 3-4: Current Loop Cable DImensions
Dimension B
60 mm 70 mm
(2.8 inches)
METTLER TOLEDO ACM500 Installation Manual
ACM500
1
2
COM4
3
4
1
2
COM5
3
4
ACM500
COM5 (J3)
Terminal #
1 1
2 2
3 3
4 4
Maximum Cable Length
300 meters
(984 feet)
3-11