Fuji Electric FRENIC MEGA G2 Series - Page 67

2.2 Wiring
2-29
INSTALLATION AND WIRING
Chap 2
[ 4 ] Description of terminal functions (control circuit terminals)
A description of control circuit terminal functions is shown in Table 2.2-9. The control circuit terminal connection
method differs based on function code settings to suit the purpose for which the inverter is used.
Wire appropriately to minimize the effect of noise from main circuit wiring.
Analog input terminals
Table 2.2-9 Description of control circuit terminal functions
Classification
Terminal
symbol
Terminal
command
Function description
Analog input
[13]
Power supply
for variable
resistor
The terminal is used for the power supply (+10 VDC) for the external frequency setter
(variable resistor: 1 to 5 kΩ).
Connect variable resistors larger than 1/2 W.
[12]
Analog
setting
voltage input
(1) Frequency is set up according to the external analog voltage input command value.
∙ 0 to ±10 VDC/0 to ±100(%) (normal operation),
∙ +10 to 0 VDC/0 to 100(%) (inverse operation)
(2) Other than frequency settings, this terminal can be assigned to PID commands, PID
control feedback signals, frequency auxiliary settings, ratio settings, torque limit value
settings, torque command values *1, *2/torque current command values *1, *2, speed
limit values, and analog input monitors with analog input.
(3) Hardware specifications
* Input impedance: 22 (kΩ)
* Up to ±15 VDC can be input. However, input exceeding ±10 VDC will be recognized as ±10
VDC.
* To input bipolar (0 to ±10 VDC) analog setting voltage at terminal [12], set function code
C35 to “0”.
*1 These are valid specifications and functions when performing speed sensorless vector control.
*2 These are valid specifications and functions when performing vector control with speed sensor. A PG interface
card (option) is required.