SAMI G S KEYPAD DI3U,4D(R); DI3U,4D; DI5U,6D Start/Stop is given from the Keypad. Motor potentiometer controlled with two Dig- ital Inputs. U = Speed up, +24 V DC; D = Speed down, +24 V DC. If DI3U,4D(R) is se- lected, the frequency reference is reset to the set minimum frequency, when SAMI GS is in STOP status or the SAMI's power is switched off. Acceleration and deceleration ramps are determined by parameters 21.4 and 21.5. STD COMMU Start/Stop from RS 485 serial link. 5 External Ref1 Sel This parameter selects the signal source of External Reference 1. STD COMMU KEYPAD Reference is given from the Keypad (Operat- ing Data parameter 13). External reference 1 via RS 485 serial link.
6 External Ref2 Sel AI1, AI2 This parameter selects the signal source of External Reference 2. 0 V DC corresponds to the set EXT REF1 MIN SCALE and 10 V DC to the set EXT REF1 MAX SCALE. KEYPAD AI1 JOYST. Reference is given from the Keypad (Operat- ing Data parameter 14). Joystick control. 0 V DC = EXT REF1 MAX SCALE (para. 13.2) Reverse, 5 V DC = EXT REF1 MIN. SCALE (para. 13.1), 10 V DC = EXT REF1 MAX SCALE (para. 13.2) Forward. AI1,AI2 0 V DC corresponds to the set MINIMUM FREQUENCY and 10 V DC to the set MAX- IMUM FREQUENCY. Warning! Use only 2-10 V (4-20 mA) signal for joystick. If a 0-10 V signal is used, the drive will run at f max to Reverse if the control signal is lost. Set para.
12.2 AI1 MINIMUM to 2V/4mA and para. 32.2 AI the drive stops in case of lost control signal. DI3U,4D(R); DI3U,4D; DI5U,6D Motor potentiometer controlled with two Digital Inputs. U = Speed up, +24 V DC, D = Speed down, +24 V DC. If DI3U,4D(R) is selected, the frequency reference is reset to the set minimum frequency, when SAMI is in STOP status or the SAMI's power is switched off. Acceleration and deceleration ramps are determined by parameters 21.4 and 21.5. Ext Ref1 Max Scale Maximum Freq. Minimum Freq. Ext Ref1 Min Scale STD COMMU 0 External reference via RS 485 serial link. -Ext Ref1 Min Scale -Minimum Freq. -Maximum Freq.
-Ext Ref1 Max Scale Min Mid Max 2 V/4mA 10V/20mA f ref =Output freq. Figure 9-1. Joystick control. = R e f 1 39