Goodrive300-LIFT series inverter
Expansion cards
-138-
A.3.2
Operating Instructions of the asynchronous motor PG card
A.3.2.1 Functions
When the asynchronous motor uses PG vector control, it is necessary to select the asynchronous
motor PG Card. The function of PG card includes 2 ways of processing circuit for orthogonal encoder
signal and it can receive differential, open collector and push-pull output signal and the power supply
of the encoder (+12V); it can also output frequency division for the encoder signal (the output is 2
ways of orthogonal open collector signal). Select according to the actual use.
A.3.2.2 Terminals and DIP
There are 9 wiring terminals in asynchronous PG card:
+12V
COM1 TERA+ TERA- TERB+ TERB- TER-OA TER-OB COM1
Figure A-5 Wiring terminals in asynchronous PG card
Among them, +12V and COM1 are the power supply output for the encoder; TERA+, TERA-, TERB+
and TERB- are the input terminal for the encoder; TER-OA, TER-OB and COM1 are the output
terminal for frequency division signal and there is no PE in the internal of the card, so the user can
ground by themselves during use.
The frequency coefficient of asynchronous PG card is determined by the DIP switch on the card.
There are 8 switches and the frequency coefficient is decided by the shown binary figures that are
added by 1. " 1" on the switch is the low bit and "8" is the high bit. When the DIP is switched to ON,
the bit is valid, reverse it is "0".
Frequency division coefficient:
Decimal digit
Binary digit
Frequency division factor
0
00000000
1
1
00000001
2
2
00000010
3
…
…
…
m
…
m+1
255
11111111
256
