DRV-28 inverter
s Extension cards
-298-
A5.4 24V multi-function incremental
Encoder card
—
AS28ENC0004
The terminals are arranged as follows:
PE
AO
BO
A1+
B1+
Z1+
A2+
B2+
Z2+
PWR
GND
AGN
D
ZO
A1-
B1-
Z1-
A2-
B2-
Z2-
AGN
D
Definitions of indicators
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 are
disconnected; it is on when the encoder pulses are normal;
and it blinks when an exception occurs in the communication
between the encoder and control board.
LED3
Power
indicator
This indicator is on after the control board feeds power to the
Encoder card.
AS28ENC0004 can work in combination with multiple types of incremental encoders through various
external wiring modes. It is user-friendly, adopting spring terminals.
AS28ENC0004 terminal function description
Label
Name
Function description
PWR
Encoder power
supply
Voltage: 24 V ± 5%
Max. output current: 150 mA
PGND
A1+
Encoder interface
1. Supporting 24 V push-pull interfaces
2. Supporting 24 V open collector interfaces
3. Frequency response: 200 kHz
A1-
B1+
B1-
Z1+
