Service manual

www.enc.net.cn/en Tel/Fax:[phone] Detailed function description
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resonance frequency of mechanical load.
Inverter set frequency can jump around some frequency point according to mode
shown in Fig. 6-12.
Fig.6-12 jumping frequency and range graph
F2.51 Set run time Range: 0－65535h 0
F2.52 Run time accumulation Range: 0－65535h 0
After run accumulative time reach set run time (F2.51)，the inverter will output
indicator signal，please refer to F5.10～F5.13 function introduction.
F2.52 denotes accumulative run time of the inverter from leaving factory tonow.
F2.53 Reserved
6.4 Closed-loop run function parameter group: F3
Analog feedback control system:
Input pressure specified value through VCI port, send 4~20mA feedback value
of pressure sensor to inverter CCI input port，make up of analog closed-loop
control system by built-in PID adjustor，as shown in Fig.6-13.
FWD
COM
GND
VCI
+10V/+5V
GND
CCI
provision 1-3K
M
P
U
V
W
PE
3 phase
380V
QF
EDS1000
send out
pressure sensor
R
S
T
4~20mA
Fig.6-13 built-in PID analog feedback control system graph
Set freq. after adjusted
Jumping range 1
Set freq.
Jumping freq. 1