Installation and Connection
CTW900 | 47
Signal
Setting
Element
Selection
Factory
Setting
AI1
S1:4
OFF: 0 a +10 V (factory setting)
ON: 4 to 20 mA / 0 to 20 mA
OFF
AI2
S1:3
OFF: 0 to ±10 V (factory setting)
ON: 4 to 20 mA / 0 to 20 mA
OFF
AO1
S1:1
OFF: 4 to 20 mA / 0 to 20 mA
ON: 0 a +10 V (factory setting)
ON
AO2
S1:2
OFF: 4 to 20 mA / 0 to 20 mA
ON: 0 a +10 V (factory setting)
ON
Figure 5.10
– Location and configurations of S1 switch to select the type of the analog input and output signals
NOTE!
The parameters related to AI1, AI2, AO1 and AO2 must also be set according to the selection of
the S1 switch and the desired values.
For the correct installation of the control wiring, use:
■
cables from 0.5 mm
2
(20 AWG) to 1.5 mm
2
(14 AWG);
■
maximum torque of 0.5 N.m (4.50 lbf.in);
■
shielded cables separate from the other wiring (power, control in 110Vac/220Vac, etc.) according to Table
5.7. If the crossing of those cables cannot be avoided, it must be done perpendicularly between them,
keeping the minimum separation distance of 5 cm at the crossing point.
The shield connection of the cables must also observe the form presented in Figure 5.11 (see example of
connection in Figure 5.12).
Table 5.7
– Separation distances between control wiring and other wiring
Wiring Length
Minimum Separation
Distance
30 m
10 cm
> 30 m
25 cm
