DRV-28 inverter
s Extension cards
-294-
Indicator definition
Indicator No.
Definition
Function
LED1
State indicator
This indicator is on when the extension card is
establishing a connection with the control board; it
blinks periodically after the extension card is
properly connected to the control board (the
period is 1s, on for 0.5s, and off for the other
0.5s); and it is off when the extension card is
disconnected from the control board.
LED2
Disconnection indicator
This indicator is off when A1 and B1 of the
encoder is disconnected; and it is on when the
pulses are normal.
LED3
Power indicator
This indicator is on after the control board feeds
power to the Encoder card.
The AS28ENC0001 extension card supports the input of absolute position signals and integrates the
advantages of absolute and incremental encoders. It is user-friendly, adopting spring terminals.
AS28ENC0001 terminal function description
Label
Name
Function description
PWR
Encoder power
Voltage: 5 V±5%
Max. current: 200 mA
PGND
A1+
Encoder interface
1. Differential incremental PG interface of 5 V
2. Response frequency: 400 kHz
A1-
B1+
B1-
Z1+
Z1-
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. Supporting frequency division of 1–255, which
AO-