PG shouldalled PG card pulse PG card generator, PulseGenerator. Used to measure rotational speed. Such as optical encoder (encoder) is a kind of PG. The PG card in the converter is a part of the vector inverter, which can convert the output of different types of encoder signal, isolation, output can be adapted to the signal controller. There are: level conversion, analog to digital conversion, optocoupler isolation, plastic, etc.. Yaskawa G7 transducer can install PG (encoder) to choose the card, this card is a class, can also install the speed instruction card, communication card, monitor card, there are all kinds of special socket. A card in the top left corner of the converter, the horizontal. PG speed control card has four types, A2, B2, D2, X2, A2B2 output pulse maximum value is 32767HZ, suitable for motor output frequency of the highest frequency output close to 20KHZ PG D2X2, the highest output pulse detection 300KHZ, TA1 wiring method: A2B2 (2 0V, 3+, 4-. 5+, 6-PG power 12VV) TA3 signal shielding. D2X2 TA1 (2 0V, 4+, 5-, 6+, 7-PG power 12VV) TA3 shielded signal.