INVT GD3000-01-055G-12, Operation Manual

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Goodrive3000 series medium voltage VFD Ethernet communication
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11.1.2.2 Description of terminals and DIP switch
There are 2 2*4P wiring terminal on the PG card.
IA+ IA- IB+ IB- OA+ OA- OB+ OB-
PWR COM1 IZ+ IZ- OA OB COM1
Of which, PWR and COM1 are working voltage output for the encoder; IA+, IA-, IB+, IB-, IZ+ and IZ- are
signal input terminals for the encoder; OA+, OA-, OB+ and OB- are output terminals for
frequency-division signals; OA, OB and COM1 are the output terminal of frequency-division push-pull
signal and open collector signal; the user can grounded the PG by themselves.
The frequency division factor is determined by the DIP switch on the card. The DIP switch consists of 8
bits. When the binary digits are displayed by DIP switch pluses 1, the relative value is frequency division
factor. The bit marked as "1" on the DIP switch is the lower binary bit, while "8" is the higher binary bit.
When the DIP switch is switched to ON, the bit is valid, indicating "1"; otherwise, it indicates "0".
Decimal digit Binary digit Frequency division factor
0 00000000 1
1 00000001 2
2 00000010 3
… … …
m
…
m+1
255 11111111 256
11.1.2.3 Wiring diagram
T
S
R
U
V
W
PE
Potentiometer
DIP switch
IA+
PWR
COM1
OA
IA-
IB+
IB-
OB
COM1
36000
RPM
PG
M
3PH input
50/60Hz
R
S
T
Figure 11.3 Wiring diagram of incremental encoder PG card
11.1.2.4 Wiring notes

The signal line of PG card should be separated from the power line. Parallel wiring is forbidden.

Select shielded cables as the signal lines of PG card to prevent coder signals from disturbance.

The shielding layer of shielded cable of PG card should be grounded (such as terminal PE of the
VFD), and furthermore, only one end is grounded, to prevent signal from disturbance.

If the frequency-division output of PG card is connected to the user power supply, the voltage should