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Chapter 4 Explanation of Functions
4 - 96
4.3 Functions Available When the Feedback Option Board (SJ-FB) Is Mounted
4.3.1 Functions requiring the SJ-FB
- The feedback option board (SJ-FB) is generally required in the following
cases:
<1> When "05" (V2: vector control with sensor) is specified for V/F
characteristic curve selection, 1st motor(A044)
<2> When pulse train frequency input is specified by one of the following
methods:
- "06" (pulse train input) is specified for the run command source setting (A001).
- "10" (operation function result) is specified for the run command source setting (A001), and "05" (pulse train frequency)
is specified for operation-target frequency selection 1 (A141) or operation-target frequency selection 2 (A142).
- "03" (pulse train frequency input) is specified for the PV source setting (A076).
- For the wiring and DIP switch setting of the SJ-FB, refer to the instruction manual for the SJ-FB.
- You can check the direction of motor rotation with the actual-frequency monitoring function (d008). For checking with
this monitoring function, specify "00" (VC) for the V/F characteristic curve selection (A044) and make the inverter
operate the motor. (Normally, a positive frequency is monitored when a forward-operation command is input, and vice
versa.)
4.3.2 V2 control pulse setting
To use the V2 control pulse setting function, specify "00" (ASR: speed control mode)
or "01" (APR: pulse train position control mode) for the control pulse setting (P012).
In speed control mode, select a device to input frequency commands by the
frequency source setting (A001).
In pulse train position control mode, each frequency command is
generated from a position command pulse train and the feedback
of the position data detected by the encoder. The position command is input via an intelligent input terminal, to which the input of the
pulse train position command is assigned. You can perform the position control with the command.
Select one of three input formats for the pulse train position command by the pulse train mode setting (P013).
To use the pulse train position control mode, assign function "48" (STAT) to an intelligent input terminal. The inverter accepts a pulse
train position command only when the STAT terminal is on.
You can clear the position deviation data by an external signal. Assign function "47" (PCLR) to an intelligent input terminal. Turning
the PCLR on and off clears the position deviation data in the inverter.
To output a speed deviation error signal, assign function "22" (DSE) to an intelligent input terminal, and specify a deviation level as
the speed deviation error detection level (P027). If the deviation of the actual frequency (motor speed) from that specified by the
frequency command exceeds the error detection level (P027), the inverter will output the DSE signal.
Item Function code Data or range of data Description
00 ASR: Speed control mode
01 APR: Pulse train position control mode
02 APR2: Absolute position control mode
Control pulse setting P012
03
HAPR: High resolution absolute position
control mode
00 MD0: 90°-phase-shift pulse train
01
MD1: Forward/reverse operation command
with pulse train
Pulse train mode setting (*2) P013
02
MD2: Forward-operation pulse train with
reverse-operation pulse train
Encoder pulse-per-revolution
(PPR) setting
P011
128. to 9999. or 1000 to
6553 (10000 to 65535)
(pulses)
Pulse count of encoder
Position loop gain setting (*1) P023
0.00 to 99.99 or 100.0
(rad/s)
Position loop gain
Speed deviation error detection
level setting
P027
0.00 to 99.99 or 100.0 to
120.0 (Hz)
Deviation level at which to output the DSE
signal
Motor poles setting, 1st motor H004 2, 4, 6, 8, or 10 (poles) Selection of the number of poles of the motor
47 PCLR: Clearance of position deviation data
Terminal function C001 to C008
48
STAT: Pulse train position command input
enable
Terminal function C021 to C025 22 DSE: Speed deviation error signal
Alarm relay terminal function C026 22 DSE: Speed deviation error signal
A044: V/F characteristic curve selection, 1st motor
A001: Run command source setting
A076: PV source setting
A141: Operation-target frequency selection 1
A142: Operation-target frequency selection 2
Related code
P012: Control pulse setting
A001: Frequency source setting
P013: Pulse train mode setting
P011: Encoder pulse-per-revolution (PPR)
setting
P023: Position loop gain setting
H004: Motor poles setting, 1st motor
C001 to C008: Terminal [1] to [8] functions
Related code