Time optimisation through contactor monitoring (optional)With monitoring of contactors activated (Monitors/CO activated) and monitor contacts connected thetime T_0 is optimised. As soon as the contactors are closed, the time T_0 is interrupted and the timeT_1 started.Time optimization through brake monitoringIf the brake monitoring is activated (Monitoring/BR≠ON) and the monitoring contacts are connected,the time T_2 is optimized. As soon as the brakes are opened, time T_2 is aborted and time T_3started.12.3.1 Damping the start-up jerkApplies to all start-up variations!To reduce a startup jolt, you can accelerate to speed V_T3 linearly whilst T_3 is running. Thisovercomes the static friction and reduces the startup jolt (see diagram).12.3.2 Start-up variationsInformationThe optimal start-up variations are preset based on the motor type selection in the Motor name platemenu.Synchronous motors: MOD5Asynchronous motors: MOD1Additional start-up variations are only required in special cases.The various start-up variations can be configured in the Start/M_Star menu. The speed controlamplification K_START is configured in the Start/K_START menu.Start-up|-" M_START 1|-" 3Start control proce-dureStart-up|-" K_START 1|-" 3Start gainMOD1 (standard setting for asynchronous motors)The machine is speed controlled. Up to expiration of T_2, the speed is controlled at target value = 0. Ashaft position change is not corrected. The parameter "K_start" is used to increase the speed controlamplification. It is activated with the start of T_1 and deactivated with the expiration of T_2.MOD2Corresponds to the function of MOD1. In addition, the parameter "s_start" is activated. If the position ofthe machine changes during time T_2 by the value entered in "s_start", "K_start" is switched off. Thatprevents the machine from being damaged due to too high a value of "K_start".MOD3The machine is both position and speed controlled. Please note that both controls are set through"K_start" and are thus dependent on each other. The position and speed control is activated with thestart of T_1 and deactivated with the expiration of T_2.MOD5 (standard setting for synchronous motors)The machine is position controlled. The machine position is recorded until expiration of T_2 and iscorrected if it changes. The parameter "K_start" is used to increase the position control amplification. Itis activated with the start of T_1 and deactivated with the expiration of T_2MOD4Corresponds to the function of MOD5. In addition, the parameter "s_start" is activated. If the position ofthe machine changes during time T_2 by the value entered in "s_start", "K_start" is switched off. Thatprevents the machine from being damaged due to too high a value of "K_start".Translation of the original operating instructionsZETADYN 4C Travel optionsR-TBA12_01-GB 1415 Part.-No. 00163371-GB106/204
