4-32
[ 4 ] Using pulse train input (F01 = 12)
The EQ7 can accommodate different types of pulse train inputs. Select the type of signal (d59) and scaling
(d62, d63) as described here.
Selecting the pulse train input format (d59)
A pulse train in the format selected by the function code d59 can give a frequency command to the inverter. Three
types of formats are available; the pulse train sign/pulse train input, the forward rotation pulse/reverse rotation
pulse, and the A and B phases with 90 degree phase difference. If no optional PG interface card is mounted, the
inverter ignores the setting of the function code d59 and accepts only the pulse train sign/pulse train input.
The table below lists pulse train formats and their operations.
Pulse train input format
selected by d59
Operation overview
0: Pulse train sign/
Pulse train input
Frequency/speed command according to the pulse train rate is given to the
inverter. The pulse train sign specifies the polarity of the frequency/speed
command.
For the inverter without an optional PG interface card
Pulse train input:
PIN
assigned to the digital terminal [X7] (data = 48)
Pulse train sign:
SIGN
assigned to a digital terminal other than [X7] (data
= 49)
If no
SIGN
is assigned, polarity of any pulse train input is positive.
1: Forward rotation
pulse/Reverse rotation
pulse
Frequency/speed command according to the pulse train rate is given to the
inverter. The forward rotation pulse gives a frequency/speed command with
positive polarity, and a reverse rotation pulse, with negative polarity.
2: A and B phases with
90 degree phase
difference
Pulse trains generated by A and B phases with 90 degree phase difference
give a frequency/speed command based on their pulse rate and the phase
difference to an inverter.
For details of operations using the optional PG interface card, refer to the Instruction Manual for it.
Pulse train sign/Pulse train input
Forward rotation pulse/Reverse rotation pulse
A and B phases with 90 degree phase difference