ES08
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15
Controller
v1.01.05
2022
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02
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03
FS
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Curtis
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receiver tank and connected piping; and close the air outlet valve.
Note:
The interconnected group of compressor sets operating under sequential control can include one or
more ES04 models.
Note:
The sequential operation parameters must also be keyed-in manually to each of the other ES08, ES11
or ES15 compressor sets in the interconnected group as per the guidance provided in Table 2.7, or as per
the guidance provided in the ES04 Controller Manual for that model only.
Note:
To utilise the sequential operation function, it is necessary to interconnect the compressors by hard-
wiring between their RS-485 communication terminals as described below. The parameters in the
communication settings menu must also be set appropriately as per the guidance provided in Table 2.11.
a) Locate the RS-485 “+”, “-” and “SG” (i.e. signal ground) terminals on the underside of PLC1 inside
the electrical cabinet of each interconnected ES08, ES11 or ES15 compressor set as shown in
Figure 2.9.
Figure 2.9 – RS-485 Terminals on ES08-15 Controller
b) Locate the RS-485 “D1+”, “D1-” and “SG” terminals on the rear of the controller fitted to each
interconnected ES04 compressor set as shown in its Controller Manual.
c) Connect all the RS-485 “+” and “D1+” terminals together in a daisy chain using one signal core of a
single twisted-pair, screened data or instrumentation cable. Connect all the RS-485 “-” and “D1-”
terminals together in a daisy chain using the other signal core.
d) Connect all the “SG” terminals together in a daisy chain using the cable screen and drain wire core.
Summary of Contents for ECO Scroll Series
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