SAMI G S 7 Const Speed Sel 8 Direction This parameter defines which Digital Inputs are used to select Constant Speeds. This parameter allows rotation direction to be fixed. NOT SEL FORWARD No Digital Input selected. DI1 (DI2, DI3, DI4, DI5, DI6) Direction is fixed to Forward. Constant speed number 1 (DI1 = Constant speed 1 etc.) connected to Digital Input 1. +24 V DC = Constant Speed activated. REVERSE Direction is fixed to Reverse. REQUEST The rotation direction is selected by Digital Inputs as defined in parameters 11.3 and 11.4 or by keypad pushbutton. DI1,2 Three Constant Speeds (1-3) are selected with two Digital Inputs.
DI1 DI2 0 0 No Constant Speed 1 0 Constant Speed 1 0 1 Constant Speed 2 1 1 Constant Speed 3 FAST REV This function works like REQUEST. How- ever, when parameter 26.3 STOP FUNC- TION is set to COAST, the modulator starts to operate in a reverse direction immedi- ately after Reverse is requested. This procedure results in fast reversing. Note! Fast reverse function does not oper- ate if the selected start function (parameter 26.1) is Flying Start (or Flying + TQB). DI3,4 DI5,6 Three Constant Speeds (1-3) are selected with two Digital Inputs as in DI1,2. 9 Fault Reset Sel DI1,2,3 Fault Reset signal resets faults, warnings and supervision indications.
The reset is activated by a transition from +24V to 0V. Seven Constant Speeds (1-7) are selected with three Digital Inputs. DI1 DI2 DI3 DI1 (DI2, DI3, DI4, DI5, DI6) Reset signal can be connected to any of the Digital Inputs 1-6. 0 0 0 No Constant Speed 1 0 0 Constant Speed 1 0 1 0 Constant Speed 2 1 1 0 Constant Speed 3 0 0 1 Constant Speed 4 1 0 1 Constant Speed 5 0 1 1 Constant Speed 6 1 1 1 Constant Speed 7 NOT SEL The Fault Reset function is not activated. ON STOP Fault is reset by Stop command (Start/Stop is selected by DI1;DI1,2 or STD COMMU as selected by parameters 11.3 and 11.4). DI3,4,5 DI4,5,6 STD COMMU Refer to DI1,2,3. Fault resetting via RS 485 serial link. 40