11.4 Option
11-72
[6] PG interface (5 V line driver) card (OPC-G1-PG2)
The PG interface (5 V line driver) card has the following circuits: shifted phase pulse train (A, B, Z phase)
input circuit for 5 V line driver output type PG (pulse generator), wire break detection circuit (detection of
wire breaks on the Z phase can be cancelled), power output circuit for feeding power to the connected PG.
Mounting this interface card on the FRENIC-MEGA enables the following:
(1) Speed control (vector control with speed sensor, V/f control with speed sensor, dynamic torque
vector control with speed sensor) using PG feedback signals, and servo-lock function
(2) Pulse train input as frequency commands
Applicable ports
This interface card can be connected to the C-port only, out of three option connection ports (A-, B-, and
C-ports) provided on the FRENIC-MEGA.
Applicable ROM version
This interface card is applicable to inverters having a ROM version G1S10100 or later.
PG interface specifications
Table 11.4-39
Item Specification
Output pulse resolution 20 to 3000 P/R
Maximum response
frequency
100 kHz
Pulse output system Line driver (Equivalent to 26C31 or 26LS31)
Source current: +20 mA (max.)
Sink current: -20 mA (max.)
Applicable
PG
Maximum wiring length
*1
100 m (when using AWG16)
PG power supply
*2
+5 VDC ±10%, 200 mA or below
*1 Table 11.4-40 shows the relationship between the wiring length and the minimum diameter of wires
connectable.
*2 If the PG power current exceeds 200 mA, use an external power supply.
Table 11.4-40 Relationship between the Wiring Length and the Minimum Diameter of Wires Connectable
Wiring length (m)
PG power
supply
specifications
Up to 20 Up to 30 Up to 50 Up to 75 Up to 100
5 V±10%,
200 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
)
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