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Wiring

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ASDA -A3

3

3.10.6 Wiring for STO

For STO wiring, the recommended wire gauge is 0.11 - 0.52 mm2 (AWG 30 - 20).

3.10.6.1 CN10 STO connector

This connector provides the STO function.

(1) CN10 STO connector (female); (2) CN10 STO connector (male)

Pin assignment:

Pin No.

1

2

Signal

-

-

Description

Reserved

Reserved

Function

For deactivating the STO function; refer to Section

3.10.6.3 for the wiring diagram.

Do not connect these two pins if using the STO

function is required.

3

SF1+

STO input SF1+

Input signal for the STO function.

ON (close): servo drive is in normal operation

4

SF1-

STO input SF1-

OFF (open): STO is activated

5

SF2+

STO input SF2+

Input signal for the STO function.

ON (close): servo drive is in normal operation

6

SF2-

STO input SF2-

OFF (open): STO is activated

7

EDM+ Diagnostic output+ Monitoring outputs for STO input status and STO circuit

8

EDM-

Diagnostic output- failure.

If you do not need the STO function, plug in the STO connector that

comes with the servo drive. The short-circuit wiring has been done as

shown in the figure on the right. If the wiring is removed, refer to the

wiring information in Section 3.10.6.3 Not using the STO function.

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