Fuji Electric FRENIC MEGA G2 Series - Page 861

11.22 Built-in Option Card Types and Ports in Which They Can be Installed
11-133
SELECTING PERIPHERAL EQUIPMENT
Chap 11
11.22.15 PG Interface Card for Synchronous Motor with Sensor (OPC-PMPG2)
The PG interface card for synchronous motor with sensor (OPC-PMPG2) is equipped with a 5 V line driver output
type 2 system pulse (YA, YB, YZ and U, V, W) input circuit, a wire break detection circuit (YZ-, U-, V-, W-phases
can be canceled), and a PG (pulse generator) power supply output circuit. With this card, vector control with sensor
is possible for synchronous motors with speed and magnetic pole position sensor.
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 11.22-55
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.)
Magnetic pole position
detection method
3-bit code (U-, V-, W-phase) method
Max. wire length (Note 3)
100 m
PG power supply
+5 VDC ±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 11.22-56. Or use an external power supply.
Table 11.22-56 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
)