Veichi JT550 Series Manual page 76

Chapter 7 Maintenance and Troubleshooting
If X terminal is used for the multi-reference function, you need to perform related setting in group F2
7: Simple PLC
When the simple programmable logic controller (PLC) mode is used as the frequency source, the
running frequency of the inverter can be switched over among the 16 frequency references. You can set the
holding time and acceleration/deceleration time of the 16 frequency references. For details, refer to the
descriptions of Group FC.
8: PID
The output of PID control is used as the running frequency. PID control is generally used in on-site
closed-loop control, such as constant pressure closed-loop control and constant tension closed-loop
control.When applying PID as the frequency source, you need to set parameters of PID function in group FA.
9: Communication setting
The frequency is set by means of communication.In other conditions, data is given by the host
computer through the communication address 0x1000. The data format is -100.00% to 100.00%. 100.00%
corresponds to the value of F0.10 (Maximum frequency).
10:AI1+AI2
11:AI1-AI2
12:max(AI1,AI2)
13:min(AI1,AI2)
F0.04
When used as an independent frequency input channel (frequency source switched over from X to Y),
the auxiliary frequency source Y is used in the same way as the main frequency source X (refer to F0.03).
When the auxiliary frequency source is used for operation (frequency source is "X and Y operation"),
pay attention to the following aspects:
1) If the auxiliary frequency source Y is digital setting, the preset frequency (F0.08) does not take effect.
You can directly adjust the set main frequency by pressing keys Λ、V on the operation panel (or using the
UP/DOWN function of input terminals).
2) If the auxiliary frequency source is analog input (AI1, AI2 and AI3) or pulse setting,100% of the
input corresponds to the range of the auxiliary frequency Y (set in F0.05 and F0.06).
3) If the auxiliary frequency source is pulse setting, it is similar to analog input.
The main frequency source X and auxiliary frequency source Y must not use the same channel.That is,
F0.03 and F0.04 cannot be set to the same value.
F0.05 Auxiliary speed range selection
F0.06
If X and Y operation is used, F0.05 and F0.06 are used to set the adjustment range of the auxiliary
frequency source.You can set the auxiliary frequency to be relative to either maximum frequency or main
frequency X. If relative to main frequency X, the setting range of the auxiliary frequency Yvaries according
to the main frequency X.
F0.07
Ten's digit
0: X+Y
1: X-Y
2:Maximum
3: Minimum
It is used to select the frequency setting channel. If the frequency source involves X and Y operation,
you can set the frequency offset in F0.21 for superposition to the X and Y operation result, flexibly satisfying
various requirements.
Auxiliary frequency(Y) given ways
Auxiliary speed range
Frequency source selection
0: Main frequency source
1:Main frequency (X) and auxiliary frequency(Y) operation(operation
relationship determined by ten's digit)
2: Switch over between main frequency and auxiliary frequency
3:Switch over between main frequency and "main frequency and auxiliary
frequency operation"
4: Switch over between auxiliary frequency and "main frequency and auxiliary
frequency operation"
Range:0~9
Range:0~1
Range:0~150
Range:0~34
Unit's digit
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JT550 Series Inverter Manual
Default:0
Default:0
Default:100%
Default:0