Fuji Electric OPC-G1-PG22 Operating Manual

Instruction Manual

Availabl

PG Interface (5 V Line Driver) Card "OPC-G1-PG22"

Thank you for purchasing this PG interface card containing 5 V line driver card (hereinafter called PG interface card), "OPC-G1-PG22." Mounting this card on your FRENIC-MEGA enables synchronous operation of two motors using PGs or frequency command entry by pulse train input.

Mounting this interface card disables the pulse train input function assigned to the inverter's [X7] terminal. The FRENIC-MEGA has three option connection ports--A-, B-, and C-ports. Connect this PG interface card to the C-port.

The A- and B-ports cannot accept this card. Mounting this card occupies also the B-port space so that any option card canno be connected to the B-port.

1 Check that:

(1) A PG interface card and four screws (M3 8) are

contained in the package.

(2) The PG interface card is not damaged during

transportation--no defective devices, dents or warps.

(3) The model name "OPC-G1-PG22" is printed on the PG

interface card. (See Figure 1.1.)

If you suspect the product is not working properly or if you have any questions about your product, contact the shop where you bought the product or your local Fuji branch office.

2 Installation

Screw holes (left)

Model name

Positioning cutout

Figure 1.1 Front of Card Figure 1.2 Back of Card

Release knob

SW1

CN1

Screw holes (right)

Before starting installation and wiring, turn OFF the power and wait at least five minutes for inverters with a capacity of 22 kW or below, or at least ten minutes for inverters with 30 kW or above. Make sure that the LED monitor and charging lamp are turned OFF. Further, make sure, using a multimeter or a similar instrument, that the DC link bus voltage between the terminals P(+) and N(-) has dropped to the safe level (+25 VDC or below).

Otherwise, electric shock could occur.

(1) Remove the front cover from the inverter and expose the control printed circuit board (control PCB). The PG interface card can be

connected to the C-port (CN6) only. (Figure 2.1)

To remove the front cover, refer to the FRENIC-MEGA Instruction Manual, Section 2.3. For inverters with a capacity of 30 kW or above, open also the keypad enclosure.

(2) Insert connector CN1 on the back of the PG interface card (Figure 1.2) into the C-port (CN6) on the inverter's control PCB. Then

secure the card with the four screws that come with the card. (Figure 2.3)

Check that the positioning cutout (Figure 1.1) is fitted on the tab ( in Figure 2.2) and connector CN1 is fully inserted ( in Figure 2.3). Figure 2.3 shows the PG interface card correctly mounted. Do not connect the interface card to the ports other than C-port. Doing so may damage the card.

(3) Perform wiring to the PG interface card.

Refer to Section 3 "Wiring."

(4) Put the front cover back into place.

To put back the front cover, refer to the FRENIC-MEGA Instruction Manual, Section 2.3. For inverters with a capacity of 30 kW or above, close also the keypad enclosure.

C-Port

(B port also occupied)

B-Port

CN6

CN5

-Port

Not available

Figure 2.1 Option Connection Ports

CN4

Fit the positioning cutout of the card over

the tab on the inverter to determine the mounting position.

Figure 2.2 Mounting PG Interface Card Figure 2.3 Mounting Completed

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Insert connector CN1 on the card into the C-port (CN6) on the inverter's control PCB.

3 Wiring

In general, the covers of the control signal wires are not specifically designed to withstand a high voltage (i.e., reinforced insulation is not applied). Therefore, if a control signal wire comes into direct contact with a live conductor of the main circuit, the insulation of the cover might break down, which would expose the signal wire to a high voltage of the main circuit. Make sure that the control signal wires will not come into contact with live conductors of the main circuit.

Failure to observe these precautions could cause electric shock or an accident.

Noise may be emitted from the inverter, motor and wires. Take appropriate measures to prevent the nearby sensors and devices from malfunctioning due to such noise.

An accident could occur.

Perform wiring to the PG interface card, referring to the "Terminal Allocation and Symbol Diagram" (Figure 3.1), "Terminal Specifications" (Table 3.1), "Internal Block Diagram" (Figure 3.2), and "Wiring Instructions" (Figure 3.3) given below.

For wiring between the PG interface card and the PG(s), use a shielded cable having a length of 100 m or below. It is recommended that the shielded layer be connected to the [CM] terminal on the card and be open at the PG side. If malfunctioning due to noise causes a problem, winding the shielded cable around a ferrite core by one or two turns may reduce the problem.

PO PO

YA, YB, YZ, XA, XB, XZ

INTEXT

+5 VDC

Photocoupler

Figure 3.1 Terminal Allocation and Symbol Diagram

Table 3.1 Terminal Specifications

Terminal Size M2 Tightening Torque 0.22 to 0.25 N·m Recommended Wire *1 AWG16 to 24 Wire strip length 6 to 7 mm

Insulated wires with allowable temperature of 105ºC (UL-listed) are recommended.

To prevent malfunctioning due to noise, separate the wires of the interface card as far apart as possible from those for the main circuits. Also, inside the inverter, bundle and fix the wires of the interface card so that they do not come into direct contact with the main circuit terminal block or other live parts of the main circuits.

Connect the shielded layer to a [CM] terminal. If [CM] terminals are lacking, share a single terminal with two wires and tighten them together.

*YA, *YB, *YZ, *XA, *XB, *XZ

CM CM CM

Figure 3.2 Internal Block Diagram

Photocoupler

I/F circuit

Wire break detection circuit

Connecting the cable to

terminals (magnified view)

In the case of 7.5 kW In the case of 75 kW

Pass the wires from the PG interface cardbetween the control circuit terminal block and the front cover.

Figure 3.3 Wiring Instructions

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