Fuji Electric FRENIC MEGA G2 Series - Page 858

11.22 Built-in Option Card Types and Ports in Which They Can be Installed
11-130
11.22.14 PG Interface (5 V Line Driver x 2 Systems) Card (OPC-PG22)
The PG interface (5 V line driver x 2 systems) card is equipped with a 5 V line driver output type 2 system pulse
(YA, YB, YZ and XA, XB, XZ) input circuit, a wire break detection circuit (YZ, XA, XB, and XZ-phases can be
canceled), and a PG (pulse generator) power supply output circuit. With this card, master-follower operation is
possible for two motors with PG with feedback signals from the PG, positioning control can be performed, and
frequency commands can be specified with pulse train input.
Applicable port
This interface card can be installed only in port C of the three FRENIC-MEGA option connection ports (A, B, and C
ports). However, the B port space is also occupied when this card is installed, meaning that it is not possible to
install any other option cards in the B port.
PG interface specifications
Table 11.22-51
Item
Specification
PG used
Output pulse count
20 to 3000 P/R (Note 1)
Max. response frequency
100 kHz
Pulse output method
Line driver method (26C31, 26LS31 or equivalent)
SOURCE current +20 mA (max.)
SINK current -20 mA (max.)
Max. wire length (Note 3)
100 m
PG power supply
+5 V ±10%/300 mA or less (Note 2)
Note 1) The setting range is 20 to 60000 P/R.
Note 2) If the total connected PG power supply current exceeds 300 mA, use an external power supply.
Note 3) If PG power supply specifications are no longer satisfied due to the voltage drop that occurs when
increasing the wire length, increase the cable diameter. A wire length and cable coil diameter guide is
shown in Table 11.22-52. Or use an external power supply.
Note 4) Use a PG with the same pulse count for the master side PG and follower side PG when performing master-
follower operation.
Table 11.22-52 Relationship between wire length and minimum connectable coil diameter
PG power supply
specification
Wire length (m)
Up to 20
Up to 30
Up to 50
Up to 75
Up to 100
5 VDC ±10%, 300 mA
AWG24
(0.25 mm
2
)
AWG22
(0.34 mm
2
)
AWG20
(0.50 mm
2
)
AWG18
(0.75 mm
2
)
AWG16
(1.25 mm
2
)
Pulse train input interface specifications
Table 11.22-53
Item
Specification
Pulse train
generator
Max. response frequency
100 kHz
Pulse output method
Line driver method (26C31, 26LS31 or equivalent)
SOURCE current +20 mA (max.)
SINK current -20 mA (max.)
Max. wire length
100 m