GE IS200PMCIH1ABA This application macro is for booster pump applications where the pump speed is controlled according to the signal received from the transducer. See the figure below. When using a direct speed reference in the AUTO mode, the speed reference must be connected to analogue input 1 (AI1) and the START command is given with digital input 1 (DI1). In the HAND/OFF mode, the speed reference and START command are given through the control panel (operator keypad). If process PI(D) is used, the feedback signal must be connected to analogue input 2 (AI2). By default, the setpoint is set from the control panel, but it can also be changed to analogue input 1. Process PI(D) must be commissioned and adjusted with parameters (Group 40: PROCESS PID SET 1) or using the PID control assistant (recommended). © Copyright 2007 ABB ACH550-01 User's Manual Application macros and wiring 107 1 SCR Signal cable shield (screen) 2 AI1 External reference 1: 0(2)…10 V or 0(4)…20 mA 3 AGND Analogue input circuit common 4 10V Reference voltage +10 V DC 5 AI2 Actual signal 1: 0(2)…10 V or 0(4)…20 mA 3 6 AGND Analogue input circuit common 7 AO1 Output frequency: 0(4)…20 mA 8 AO2 Output current: 0(4)…20 mA 9 AGND Analogue output circuit common 10 24V Auxiliary voltage output +24 V DC 11 GND Common for DI return signals 12 DCOM Digital input common for all 13 DI1 Start/Stop: Activation starts the drive 14 DI2 Run enable: Deactivation stops the drive 2 15 DI3 Constant speed 1 (par. 1202) 1 16 DI4 Start enable 1: Deactivation stops the drive 2 17 DI5 Start enable 2: Deactivation stops the drive 2 18 DI6 Not used 19 RO1C Relay output 1 (par. 1401) Default operation Started => 19 connected to 21 20 RO1A 21 RO1B 22 RO2C Relay output 2 (par. 1402) Default operation Running => 22 connected to 24 23 RO2A 24 RO2B 25 RO3C Relay output 3 (par. 1403) Default operation Fault (-1) => 25 connected to 27 26 RO3A 27 RO3B 1 Not available if PID is activated 2 Disable/enable with parameters 1601, 1608 and 1609 3 The sensor for AI2 is powered externally (not shown in the figure). See the manufacturer’s instructions. To use sensors supplied by the drive auxiliary voltage output, see page 124. Note: The drive starts only if possible protection functions (Run enable or Start enable 1 and 2) are activated from I/O or disabled with parameters. 1…10 kohm Booster pump ACH550-01 User's Manual 108 Application macros and wiring 7. Pump alternation This application macro is intended for pump alternation applications, usually used in booster stations in buildings. The pressure in the network is adjusted by changing the speed of the pump according to the signal received from the pressure transducer and adding auxiliary pumps directly on-line when needed. By default, this macro can use one auxiliary pump. To use more auxiliary pumps, refer to parameter Group 81: PFA CONTROL. See the figure below. When process PI(D) is used i |
