6-20
6.2.2.2 Specifications
• Failure to set the switches (SW1) on the PG interface expansion card correctly will prevent the
system from operating properly. Read information about the settings below and be sure to set the
switches correctly.
• When performing rotational positioning, set the switches to PG (PD). Use of the card in this
configuration requires the separate UPAC option.
Table 6.2.2 Hardware specifications
Item Specifications
Model OPC-VG1-PG OPC-VG1-PGo
Signal type
Line driver output
(26C31, 26LS31 or equivalent recommended)
Open collector output
Voltage output
Mode switching
SW-1 and SW1-2 on the PG interface expansion card are used to switch modes as follows:
(SW1-1, SW1-2) = (OFF, OFF) : (ON, OFF) : (OFF, ON) : (ON, ON) = PD : LD : PR : SD
Applications
Motor speed detection (SD), Line speed detection (LD), Pulse detection (PD), Pulse command
input (PR)
PG power
supply
The PG interface expansion card uses a 5 V power supply.
[PGP] terminal: +5 V ±5%, 250 mA
[PGM] terminal: Common
Includes an overcurrent protection function.
Internal photocoupler insulation (connected to [PGM] and [CM] on the inverter's control Pt
board; isolated from [M])
Signal pins
[PA], [*PA], [PB], [*PB], [PZ], [*PZ]
Photocoupler insulation
[PA], [PB], [PZ]
Photocoupler insulation
([*PA], [*PB], and [*PZ] are not used.)
Connections (see
basic connection
diagram)
Line driver output type
Connect a 5 V power supply to [PGP] and
[PGM]. Other 5 V power supplies cannot be
used. Since a balanced circuit is used, it is
necessary to use twisted-pair shielded cable for
wiring.
Open collector output type
Built-in 5 V pull-up, sink current: 8 mA
max./circuit
(Can be used when connected to the
FRENIC-VG's [FA] and [FB] terminals.)
Voltage output type
L level voltage detection: 0 V to 2 V or less
H level voltage detection: 4 V to 15 V
Input format
Can select from 3 types using the o13 function code (pulse train input format selection).
2 signals (A- and B-phase) with 90° phase difference
A-phase: Command pulse; B-phase: Command code
A-phase: Run forward pulse; B-phase: Run reverse pulse
Pulse output
Open collector output or complementary output can be generated by dividing the frequency of
the input pulse with the inverter's built-in [FA], [FB], and [CM] terminals.
Max. output frequency: 100 kHz; 15 mA max., 1.5 mA min., 27 V max./circuit
Max. input pulse
frequency
500 kHz, duty: 50 ±10% 100 kHz, duty: 50 ±10%
Allowable
wiring length
Approx. 50 m
Shorter wiring lengths are required when there
is a high voltage drop. For wiring runs of 50 m
or greater, use an insulation converter as
described in "6.2.4.2 Wiring."
10 m or less
Keep wiring runs as short as possible to avoid
the effects of noise.
Power supply
24 V
Supplied from the inverter's printed circuit board. Connect the power supply harness to CN24 or
CN25 on the inverter.
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