Grundfos RSI - Page 62

6.3.1 Relay and thermistor input terminals
Pos. Signal
21
22
23
24
25
26
28
29
RO1/1
RO1/2
RO1/3
RO2/1
RO2/2
RO2/3
TI1+
TI1-
21
22
23
24
25
26
28
29
RO1/1
Relay output 1, FaultRO1/2
RO1/3
RO2/1
Relay output 2, RunRO2/2
RO2/3
TI1+
Thermistor input
TI1-
6.3.2 Safe Torque Off (STO) terminals
For more information on the functionality of the Safe
Torque Off (STO), see RSI Installation Manual.
Safe Torque Off terminals
Terminal Signal
S1 Isolated digital input 1
(interchangeable polarity);
+24 V ± 20 % 10...15 mA
G1
S2 Isolated digital input 2
(interchangeable polarity);
+24 V ± 20 % 10...15 mA
G2
F+
Isolated feedback (CAUTION!
Polarity to be respected);
+24 V ± 20 %
F-
Isolated feedback (CAUTION!
Polarity to be respected);
GND
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