Control Unit Cabling; Control Cable Sizing - Vacon 20 X Installation, Technical And Maintenance Manual

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vacon • 41

5.3

Control unit cabling

The principal terminal block placement is shown in Figure 28 below. The control board is

equipped with 18 fixed control I/O terminals and the relay board with 5. Additionally, the termi-

nals for the Safe Torque Off (STO) function (see chapter 9) can be seen in the picture below. All

signal descriptions are also given in Table 18.

5.3.1

The control cables shall be at least 0.14 mm

Table 11. The maximum terminal wire size for the I/O terminals is 1.5 mm

Find the tightening torques of the I/O (control and relays) and STO terminals in the Table 17 be-

low.

Figure 28. Control terminals.

Terminal screw

I/O terminals and STO termi-

nals (screw M2)

Table 17. Control cable tightening torques.

screened multi core cables, see Table 10 and

Tightening torque

lb-in.

0.22 min

1.94 min

0.25 max

2.21 max

Control unit

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