5.Description of Function Codes
EM12 User's Manual
46
These parameters are used to implement the frequency inverter timing function.
If b2-28 is set to 1, the frequency inverter starts to time at startup. When the set timing durationreached, the frequency
inverter stops automatically, and meanwhile the corresponding DO outputs ON signal.
The frequency inverter starts timing from 0.0min each time it starts up and the remaining timing duration can be
checked by U0-20.
The timing duration is set in b2-29 and b2-30, in unit of minute.
b2-31
This time running time reached threshold
Default
0.0min
Setting Range
0.0min~6500.0 min
If the present running time reaches the value set in this parameter, the corresponding DO outputs ON signal,
indicating that present running time is reached.
b2-32
DI terminal status after power on
Default
0
Setting
Range
0
Valid
1
Invalid
This parameter is used to enable the frequency inverter safety protection. If it is set to 1, the frequency inverter does
not respond to the run command after power-on (for example, an input terminal is ON before power-on). The
frequency inverter responds only after the run command is cancelled and becomes valid again.
In addition, the frequency inverter does not respond to the run command valid from fault reset of the frequency
inverter. The run protection can be disabled only after the run command is cancelled one time.
In this way, the motor will not automatically startup to avoid unexpected dangerous conditions for these startup
commands from power-on and fault reset.
5.4 Group b3: Input Terminals
The EM12 provides sixdigital input (DI) terminals (HDI can be used for high-speed pulse input) and two analog input
(AI) terminals. The optional extension card provides another six DI terminals (DI7 to DI12) and one AI terminal
(AI3).
b3-00
DI1 function selection
Default
1(FWD)
b3-01
DI2 function selection
Default
2(REV)
b3-02
DI3 function selection
Default
6
b3-03
DI4 function selection
Default
7
b3-04
DI5 function selection
Default
8
b3-05
Reserved control terminal for expansion
Default
0
b3-06
HDI function selection
Default
32
Setting Range
b3-00~b3-06: 0~49
The following table lists the functions available for the DI terminals.
Table 6-1 Functions of DI terminals
Value
Function
Description
0
No function
Set 0 for reserved terminals to avoid malfunction.
1
Forward RUN (FWD) or running
command
The terminal is used to control forward or reverse running of the
frequency inverter.
2
Reverse RUN (REV) or the
direction of FED/REV
3
Three-line control
The terminal determines three-line control of the frequency inverter.
For details, see the description of b3-13.
4
Forward JOG (FJOG)
FJOG indicates forward JOG running, while RJOG indicates reverse
JOG running. The JOG frequency, acceleration time and deceleration
time are described respectively in b2-00, b2-01 and b2-02.
5
Reverse JOG (RJOG)
6
Multi-function terminal 1
The setting of 16 speeds or 16 other references can be implemented
through combinations of 16 states of these four terminals.
7
Multi-function terminal 2
Summary of Contents for EM12 Series
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