SAMI G S 10 Acc/Dec 1 or 2 Sel 11 Param. Lock Sel This parameter defines which Digital Input (1 - 6) is used to select Acceleration/Decel- eration Ramp 1 or 2. 0 V DC = Acc/Dec Time 1 24 V DC = Acc/Dec Time 2. This parameter selects the control place for Parameter Lock. If you select KEYPAD, Parameter Lock is controlled with Operating Data parameter 23, PARAMETER LOCK. If you select a Digital Input (1-6), 0 V DC = Open and +24 V DC = Locked. 9.1.2 Group 12 - Analogue Inputs These values can be altered with the SAMI GS running. 1 Filter AI1 2 Minimum AI1 Filter time constant for Analogue Input 1. Analogue input signal can be set to a mini- mum of either 0 V/0 mA or 2 V/4 mA.
The latter value provides a "living zero" function (see page 66, para. 32.2 AI FUNC). Refer to page 19 for selection between current and voltage input. 63 percent of the change of the Analogue Input value takes place within the time period given by this parameter. If you select the minimum value 0.01 s, the signal is not filtered. [%] 3 Invert AI1 Unfiltered signal If you select YES, the Analogue Input 1 signal is inverted (minimum reference corresponds to maximum output frequency). This can be used, for example to invert the feedback signal to control a reference in liquid level control. 100 63 Filtered signal 4 Filter AI2 5 Minimum AI2 6 Invert AI2 FILTER AI1 Figure 9-2.
Filter time constant. Refer to parameters 12.1 - 12.3. 41 Parameter Range/Unit Description 1 Filter AI1 2 Minimum AI1 3 Invert AI1 4 Filter AI2 5 Minimum AI2 6 Invert AI2 0.01...10 s 0 V/0 mA or 2 V/4 mA No/Yes 0.01...10 s 0 V/0 mA or 2 V/4 mA No/Yes Filter time constant for AI1 Analogue Input signal 1 minimum value Analogue Input signal 1 inversion Filter time constant for AI2 Analogue Input signal 2 minimum value Analogue Input signal 2 inversion