GD350A series high-performance multifunction VFD
-334-
Indicator
Name
Function
is 1s, on for 0.5s, and off for the other 0.5s); and it
is off when the expansion card is disconnected
from the control board.
LED2
Disconnection indicator
This indicator is off when the encoder is
disconnected; it is on when the encoder signals
are normal; and it blinks when the encoder
signals are not stable.
LED3
Power indicator
This indicator is on after the control board feeds
power to the PG card.
The EC-PG504-00 expansion card can be used in combination with a resolver of excitation voltage 7
Vrms. It is user-friendly, adopting spring terminals.
EC-PG504-00 terminals are described as follows:
Signal
Port
Function
SI+
Encoder signal input
Recommended resolver transformation ratio: 0.5
SI-
CO+
CO-
EX+
Encoder excitation
signal
1. Factory setting of excitation: 10 kHz
2. Supporting resolvers with an excitation voltage
of 7 Vrms
EX-
A2+
Pulse setting
1. Differential input of 5 V
2. Response frequency: 200 kHz
A2-
B2+
B2-
Z2+
Z2-
AO+
Frequency-divided
output
1. Differential output of 5 V
2. Frequency-divided output of resolver simulated
A1, B1, and Z1, which is equal to an incremental
PG card of 1024 pps.
3. Supporting frequency division of 1–255, which
can be set through P20.16 or P24.16
4. Max. output frequency: 200 kHz
AO-
BO+
BO-
ZO+
ZO-
The following figure shows the external wiring of the EC-PG504-00 expansion card.