H6: Pulse Train Input/Output - YASKAWA GA700 Technical Manual

11.8 H: Terminal Functions
Note:
• The setting automatically returns to H5-20 = 0 after MEMOBUS/Modbus communications parameter changes are enabled.
• The setting values of the following parameters are enabled.
–H5-01 [Drive Node Address]
–H5-02 [Communication Speed Selection]
–H5-03 [Communication Parity Selection]
–H5-06 [Drive Transmit Wait Time]
◆

H6: Pulse Train Input/Output

H6 parameters set the drive pulse train input and pulse train monitor. These parameters select input and monitor
parameters and adjust the pulse train frequency.
A pulse train signal with a maximum single pulse of 32 kHz can be input to the drive input terminal RP. The pulse
train signal can be used as the frequency reference, PID feedback value, PID setpoint value, and speed feedback
for V/f Control mode.
A pulse train signal with a maximum frequency of 32 kHz can be output from the drive output terminal MP as the
monitor value. Both sinking mode and sourcing mode are supported.
■
H6-01: PulseTrain InTerm RP Func Select
No.
Name
(Hex.)
H6-01 PulseTrain InTerm
RP Func Select
(042C)
0 : Frequency reference
The drive inputs the frequency reference received from terminal RP when b1-01 [Frequency Reference Selection
1] or b1-15 [Frequency Reference Selection 2] is set to 4 [Pulse Train Input].
1 : PID feedback value
The drive inputs the PID control feedback value received from terminal RP.
2 : PID setpoint value
The drive inputs the PID control target value received from terminal RP.
3 : PG Feedback
Simple encoder feedback is enabled when V/f Control Mode is selected.
Speed control accuracy is improved by using motor speed feedback. The drive compares the frequency reference
with the motor speed feedback received from the encoder, and compensates for motor slip using the ASR
function. Note that the direction of motor rotation cannot be detected via input terminal RP used for the simple
encoder. Configure direction of motor rotation detection via another method.
The following diagram illustrates the method to detect the direction of motor rotation.
• Use MFDI
Set the MFDI H1-xx = 7E [FWD/REV Detect (V/f w/ simplePG)]. The drive recognizes that when the
configured terminal is on, the motor operates in reverse, and that when the terminal is off, the motor operates in
Forward run.
An encoder that outputs 2-tracks (phase A, B) is used to detect the direction of motor rotation.
• Use the frequency reference
When the MFDI is not used, the Forward/Reverse run command is recognized as the direction of motor rotation.
The following block diagram illustrates speed control under the Simple Closed Loop V/f Mode.
820
Figure 11.111 Pulse Train Input Block Diagram
V/f CL-V/f OLV CLV AOLV
Selects a function of the pulse train input terminal RP.
YASKAWA ELECTRIC SIEP C710617 01B YASKAWA AC Drive GA700 Technical Manual
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Default
(Range)
0
(0 - 3)