EM11 User’s Manual
5. Description of Function Codes
95
C0-21 and C0-22 respectively are corresponding to the maximum absolute value of the output deviation in
forward direction and in reverse direction.
Code
Parameter Name
Setting Range
Default
C0-23
PID feedback filter
time
0.00s~60.00s 0.00s
C0-24
PID output filter time 0.00s~60.00s 0.00s
C0-23 is used to filter the PID feedback, helping to reduce interference on the feedback but slowing the
response of the process closed-loop system.
C0-24 is used to filter the PID output frequency, helping to weaken sudden change of the frequency inverter
output frequency but slowing the response of the process closed-loop system.
Code
Parameter Name
Setting Range
Default
C0-25
Detection value of
PID feedback loss
0.0%: Not judging feedback loss 0.1%~100.0%
0.0%
C0-26
Detection time of PID
feedback loss
0.0s~20.0s 0.0s
These parameters are used to judge whether PID feedback is lost.
If the PID feedback is smaller than the value of C0-25 and the lasting time exceeds the value of C0-26, the
frequency inverter reports Err31 and acts according to the selected fault protection action.
Code
Parameter Name
Setting Range
Default
C0-27
PID operation at stop
0: No PID operation at stop
1: PID operation at stop
0
It is used to select whether to continue PID operation in the state of stopping. Generally, to set the PID
operation stops when the frequency inverter stops.
5.15 Group C1:Multi-function
The Multi-function of EM11 has many functions. Besides multi-speed, it can be used as the setting source of
the V/F separated voltage source and setting source of process PID. In addition, the Multi-function is relative
value.
The simple PLC function is different from the EM11 user programmable function. Simple PLC can only
complete simple combination of Multi-function.
Code
Parameter Name
Setting Range
Default
C1-00
Multi-function 0
-100.0%~100.0% 0.0%
C1-01
Multi-function 1
-100.0%~100.0% 0.0%
C1-02
Multi-function 2
-100.0%~100.0% 0.0%
C1-03
Multi-function 3
-100.0%~100.0% 0.0%
C1-04
Multi-function 4
-100.0%~100.0% 0.0%
C1-05
Multi-function 5
-100.0%~100.0% 0.0%
C1-06
Multi-function 6
-100.0%~100.0% 0.0%
C1-07
Multi-function 7
-100.0%~100.0% 0.0%
C1-08
Multi-function 8
-100.0%~100.0% 0.0%
C1-09
Multi-function 9
-100.0%~100.0% 0.0%
5. Description of Function Codes
EM11 User’s Manual
96
Code
Parameter Name
Setting Range
Default
C1-10
Multi-function 10
-100.0%~100.0% 0.0%
C1-11
Multi-function 11
-100.0%~100.0% 0.0%
C1-12
Multi-function 12
-100.0%~100.0% 0.0%
C1-13
Multi-function 13
-100.0%~100.0% 0.0%
C1-14
Multi-function 14
-100.0%~100.0% 0.0%
C1-15
Multi-function 15
-100.0%~100.0% 0.0%
Multi-function can be the setting source of frequency, V/F separated voltage and process PID. The
Multi-function is relative value and ranges from -100.0% to 100.0%.
As frequency source, it is a percentage relative to the maximum frequency. As V/F separated voltage source,
it is a percentage relative to the rated motor voltage. As process PID setting source, it does not require
conversion.
Multi-function can be switched over based on different states of DI terminals. For details, see the
descriptions of group b3.
Code
Parameter Name
Setting Range
Default
C1-16
Multi-function 0
source
0: Set by C1-00
1: AI1
2: AI2
3: AI3
4: Pulse setting(DI6)
5: PID
6: Set by preset frequency (b0-12), modified via
terminal UP/ DOWN
0
It determines the setting channel of multi-function 0. You can perform convenient switchover between the
setting channels. When multi-function or simple PLC is used as frequency source, the switchover between
two frequency sources can be realized easily.
5.16 Group C2: Simple PLC
Code
Parameter Name
Setting Range
Default
C2-00
Simple PLC running
mode
0: Stop after the Frequency inverter runs one cycle
1: Keep final values after the frequency inverter runs
one cycle
2: Repeat after the frequency inverter runs one cycle
0
0: Stop after the frequency inverter runs one cycle
The frequency inverter stops after running one cycle, and will not start up until receiving another command.
1: Keep final values after the frequency inverter runs one cycle
The frequency inverter keeps the final running frequency and direction after running one cycle.
2: Repeat after the frequency inverter runs one cycle
The frequency inverter automatically starts another cycle after running one cycle, and will not stop until
receiving the stop command.
Simple PLC can be either the frequency source or V/F separated voltage source.
When simple PLC is used as the frequency source, whether parameter values of C1-00 ~ C1-15 are positive
or negative determines the frequency inverter running direction. If the parameter values are negative, it
indicates that the frequency inverter runs in reverse direction.
