3 Installation3.4 Electrical InstallationDS7 Soft starter 09/16 MN03901001Z-EN www.eaton.com 853.4.4 Functions of control signal terminalsThis section describes the functions of the control signal terminals.Table 15: Function of control signal terminalsConnectionterminalConstruction size Description1 2 3 4+Us ✓ ✓ ✓ ✓ Regulator supply voltage (positive pole)• DS7-340…:+24 V DC, +10 %/-15 %, 150 mA24 V AC, +10 %/-15 %, 150 mA, 50/60 Hz• DS7-342…:120 - 230 V AC, +10 %/-15 %, 100 mA at 230 V, 50/60 Hz-U s ✓ ✓ ✓ Reference potential (O V) for +U s+A1 ✓ ✓ ✓ ✓ Control input start/stop (positive pole)Same voltage level as +U sLow level: 0 - 3 V;High level: 4.6 – +UsCurrent drain:DS7-340…: 1.6 mA at 24 VDS7-342…: 4 mA at 230 V-A2 ✓ ✓ ✓ ✓ Reference potential (O V) per +A1In the case of size 1, reference potential for relay contact 13 (TOR) and +U s as wellEN ✓ ✓ Control input, controller enable (enable, positive pole)EN must be actuated before +A1.If the t-Stop function is used, EN should not be disconnected until after the RUN signal has beendeactivated.If EN is deactivated in RUN mode, the drive will execute an uncontrolled stop.13 (✓) ✓ ✓ ✓ Relay contact, N/O TOR (Top-of-Ramp)230 V AC, 1 A, AC 11Notice!In the case of size 1, the type (AC/DC) and magnitude (24 V/230 V) of the voltage being switched(TOR: 13/-A2) must be identical to those of the control voltage: +U s = +A1 = 13, reference potential -A214 ✓ ✓ ✓ Common contact of TOR relay contact (control signal terminal 13)23 ✓ ✓ ✓ Relay contact, N/O RUN (RUN signal) / READY230 V AC, 1 A, AC 1124 ✓ ✓ ✓ Common contact of RUN / READY (control signal terminal 23)