Mettler Toledo ACM500 Guia De Instalacion página 35

3.6.2. Analog Output Connection
The analog output option fits into the lower (PLC) interface slot in the ACM500 main board. It
provides an analog signal of either 0-10 VDC or 4-20mA (but not both), proportional to the weight
applied to the scale or the rate of change of weight on the scale.
There are minimum and maximum resistance limits for the connecting device. These limits are
shown in Table 3-7.
The maximum recommended cable length for the Analog Output connection is 15m (50 ft.). The
recommended cable for use with the analog output is shielded, two conductor stranded 0.5 mm
(20 GA or 0.032 AWG) cable (Belden #8762 or equivalent). This cable is available from METTLER
TOLEDO using part number 510220190. The analog output option board is shown in Figure 3-19.
3-16
METTLER TOLEDO ACM500 Installation Manual
Interface Minimum Resistance
0 - 10 VDC
4 - 20 mA
Figure 3-19: Analog Output Option Board
Connections to the analog output board should be made as shown in Figure 3-20.
Figure 3-20: Wiring to the Analog Output
Table 3-7: Resistance Limits
100k Ω
None
Maximum Resistance
None
500 Ω
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