5
vacon • 48 Control unit
Local contacts: http://drives.danfoss.com/danfoss-drives/local-contacts/
5.1.3 Relay and thermistor input terminals
5.1.4 Safe Torque off (STO) terminals
For more information on the functionalities of the Safe Torque Off (STO), see chapter 9.
Table 24. I/O terminal signals for relay and thermistor terminals and connection example.
Relays and thermistor
Terminal Signal
21
RO1/1
Relay output 1
22
RO1/2
23
RO1/3
24
RO2/1
Relay output 2
25
RO2/2
26
RO2/3
28
TI1+
Thermistor input
29
TI1-
Table 25. 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