ABB产品-电气行业

8 Connection | Application manual: Waste water pump | 1SFC132104M0201 3 Connection This chapter describes the electrical connections as well as connections for communication devices that can be connected to the softstarter. WARNING Mounting and electrical connections of the softstarter shall be made in accordance with local laws and regulations and be performed by authorized personnel. CAUTION Hazardous voltage. Can cause death or serious injury. Turn off and lock out all power supplying this device before any work on the softstarter. WARNING! Apply the control supply voltage to make sure that the bypass relays are in open position before you connect the softstarters PSTX30...PSTX170 to operational voltage for the first time. If not, the equipment can start accidentally. This is necessary to avoid unintentional starting of the equipment during the connection. INFORMATION ABB personell have to obey the instructions in ABB CISE 15.4. WARNING Capacitors for power factor compensation are not allowed in between the softstarter and the motor, since this can cause current peaks which can burn the thyristors in the softstarter. If such capacitors are to be used, they should be connected on the line side of the softstarter. For more information, please see 1SFC132081M0201 - Softstarters Type PSTX30...PSTX370, Installation and Commissioning Manual. 3.1 Main circuit INFORMATION The voltage dips may not be more than 5% between softstarter and motor. The cable lenght does not matter. Softstarters PSTX30...PSTX370 can be connected both In Line, see 1 Figure 1, and Inside Delta, see 2 Figure 1. Use wire connection for PSTX30...PSTX105 see Figure 2 and terminal connection for PSTX142...PSTX170 see Figure 3. • Connect the line side to terminals 1L1, 3L2, 5L3, see 1 in Figure 2 and 3. • Connect the motor to terminals 2T1, 4T2, 6T3 on the motor side, see 2 in Figure 2 and 3. The terminal marking is printed on the front of the softstarter. For tightening torques and cable thickness, 1 PSTX PSTX 1 2 1SFC132081M0201 Figure 1: In line (1) and inside delta (2) connection 3 Line side 2T1 4T2 6T3 5L3 3L2 1L2 Motor side 1 2 1SFC132081M0201 Figure 3: Terminal connection bars see chapter 3.1.1 Tightening torques and cable dimensions. 2 1SFC132081M0201 1 2 Line side 1L1 3L2 5L3 6T3 4T2 2T1 Motor side Figure 2: Terminal connection clamps 2