Fuji Electric FRENIC-MEGA, Инструкция по эксплуатации

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5-40
Ch
ap
. 5
FUNCTION C
O
DES
F codes
[ 4 ] Using pulse train input (F01 = 12)
„ 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