5.Description of Function Codes
EM15 User's Manual
50
voltage source for V/F separation, satisfying the requirement on switchover of different setting values.
Table 5-2 Function description of Acceleration/Deceleration time selection terminals
Terminal 2
Terminal 1
Acceleration/Deceleration Time
Selection
Corresponding
Parameters
OFF
OFF
Acceleration/Deceleration time 1
b0-21, b0-22
OFF
ON
Acceleration/Deceleration time 2
b2-03, b2-04
ON
OFF
Acceleration/Deceleration time 3
b2-05, b2-06
ON
ON
Acceleration/Deceleration time 4
b2-07, b2-08
b3-12
DI filting time
Default
0.010s
Setting Range
0.000s~1.000s
It is used to set the software filting time of DI terminal status. If DI terminals are liable to interference and may cause
malfunction, increase the value of this parameter to enhance the anti-interference capability. However, increase of DI
filting time will slow down the response of DI terminals.
b3-13
Terminal command mode
Default
0
Setting
Range
0
Two-line mode 1
1
Two-line mode 2
2
Three-line mode 1
3
Three-line mode 2
This parameter is used to set the mode in which the frequency inverter is controlled by external terminals. The
following uses DI1, DI2 and DI3 among DI1 to DI12 as an example, with allocating functions of DI1, DI2 and DI3 by
setting b3-00 to b3-02.
0: Two-line mode 1
It is the most commonly used two-line mode, in which the forward/reverse rotation of the motor is decided by DI1
and DI2. The parameters are set as below:
Code
Name
Value
Function Description
b3-13
Terminal command mode
0
Two-line 1
b3-00
DI1 function selection
1
Forward RUN (FWD)
b3-01
DI2 function selection
2
Reverse RUN (REV)
Diagram 5-10 Setting of two-line mode 1
As shown in the preceding figure, when only K1 is ON, the frequency inverter instructs forward rotation. When only
K2 is ON, the frequency inverter instructs reverse rotation. When K1 and K2 are ON or OFF simultaneous, the
frequency inverter stops.
1: Two-line mode 2
In this mode, DI1 is RUN enabled terminal, and DI2 determines the running direction. The parameters are set as
below:
Code
Name
Value
Function Description
