5
vacon • 51
Control unit
5.1.3
Relay terminals
5.1.4
Safe Torque off (STO) terminals
For more information on the functionalities of the Safe Torque Off (STO), see chapter 9. This
function is available only in the three-phase version.
Table 25. I/O terminal signals for relays and connection example.
Relays terminals
Terminal
Signal
22
RO1/2
Relay output 1
23
RO1/3
24
RO2/1
Relay output 2
25
RO2/2
26
RO2/3
Table 26. I/O terminal signals for the STO functions.
Safe Torque Off terminals
Terminal
Signal
S1
Isolated digital input 1 (inter-
changeable polarity);
+24V ±20% 10...15mA
G1
S2
Isolated digital input 2 (inter-
changeable polarity);
+24V ±20% 10...15mA
G2
F+
Isolated feedback (CAUTION!
Polarity to be respected);
+24V ±20%
F-
Isolated feedback (CAUTION!
Polarity to be respected);
GND
From
standard I/O board
From term.
#7
From term.
#6
RUN
Содержание 20 CP
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