4-82
+10V
GND
SW2
I
V
-10V
2K
Ω
AI1
AI2
Main Speed
Frequency Reference
Command
(Voltage Input)
Main Speed
Frequency Reference
Command
(Current Input)
Figure 4.4.4 Analog input as main frequency reference command
00-05/00-06= 2: Terminal UP / DOWN
The inverter accelerates with the UP command closed and decelerates with the DOWN command closed. Please
refer to parameter 03-00 ~ 03-07 for additional information.
Note:
To use this function both the UP and DOWN command have to be selected to any of the input terminals.
00-05/00-06= 3: Communication control
The frequency reference command is set via the RS-485 communication port using the MODBUS RTU protocol.
Refer to parameter group 9 for additional information.
00-05/00-06= 4: Pulse input
To use this function a pulse train input is required to be connected to the PI input and GND (see fig. 4.4.5).
Set parameter 03-30 to 0 to use the pulse input as frequency reference. Refer to parameters 03-31 to 03-34 for
pulse input scaling.
PI input terminal, built-in resistance, is not required to connect the resistance if open collector input mode is used.
PI
GND
0V
(Internal resistence : 3.89 K)
Serial pulse input
Specification
Low Input Level: 0.0 to 0.5 V
High Input Level: 4.0 to 13.5 V
Duty cycle: (ON / OFF) 30 % to 70%
Pulse Input frequency range: 50 to 32 KHz
Figure 4.4.5 Frequency reference from pulse input