ABB ACS 400 User Manual
Also see for ACS 400: User guideInstallation guideUser manualUser manual
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ACS 400 User’s Manual1078117 NR OF AUX MOTSets the number of auxiliary motors.Relay outputsStart/stop signals for the auxiliary motors are given through relay outputs. In addition, one relay output isused to connect the speed regulated motor to the ACS 400.ACS 400 relay outputs RO1 and RO2 can be used to control the motors. It is also possible to use up to twooptional external digital input/output modules (NDIO).ACS 400 relay output 1 is used for Pump and Fan motor control if 1401 RELAY OUTPUT 1 value is 29(PFC). Relay output 2 is used for Pump and Fan motor control if 1402 RELAY OUTPUT 2 value is 29(PFC).Table 17 depicts the use of relay outputs for different settings of parameters 1401 and 1402. If Autochangefunction is not used, first relay output configured for PFC use controls the speed regulated motor. IfAutochange function is used, the ACS 400 Autochange logic assigns the relay outputs to correspondingmotors (of which one is speed controlled).Table 17 Usage of relay outputs. Relay output configuration is set by parameters 1401, 1402 and 8117.Number of relay outputs needed depends on the number of auxiliary motors. For example, if number ofauxiliary motors is 2, total of three relay outputs (motors 1,2 and 3) are needed. x = Any other setting than29 (PFC).8118 AUTOCHNG INTERVSets the interval for the Autochange function. The time is counted only when ACS 400 Start signal is on.See parameter 8119 AUTOCHNG LEVEL for information on the operation of the Autochange.0.0 = NOT SELThis setting switches off the Autochange function.Note! The ACS 400 always coasts to stop when autochange is performed.Warning! If the Autochange function is used, the Interlocks must be in use. In Autochange system there is acontactor between ACS 400 output terminals and the speed controlled motor. The contactor is damaged ifopened without first interrupting the ACS 400 inverter bridge switching. The inverter switching is interruptedwhen the Interlock is switched off and the ACS 400 coasts to stop.Code DescriptionParametersetting ACS 400 relaysNDIO module 1(Module node number= 5)NDIO module 2(Module node number =6)1401RELAYOUTPUT11402RELAYOUTPUT2RelayoutputRO1functionRelayoutputRO2functionNDIOrelayoutput 1functionNDIOrelayoutput 2functionNDIO relayoutput 1functionNDIO relayoutput 2function29 (PFC) 29 (PFC) Motor 1start/stopMotor 2start/stopMotor 3start/stopMotor 4start/stopNot used Not used29 (PFC) x Motor 1start/stope.g. Fault Motor 2start/stopMotor 3start/stopMotor 4start/stopNot usedx 29 (PFC) e.g. Fault Motor 1start/stopMotor 2start/stopMotor 3start/stopMotor 4start/stopNot usedx x e.g. Run e.g. Fault Motor 1start/stopMotor 2start/stopMotor 3start/stopMotor 4start/stop |
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