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Beckhoff
6.1.7.5
Digital inputs/outputs, connector X21A (SubD 15-pin, socket)
Inputs (In): 24V (20...28V), opto-isolated, one high-speed input (Pin 4)
Outputs (Out): 24V, opto-isolated, Darlington driver
Pinout connector X21A (SubD 15 pin)
Pin Type Description
1
2
3
4
5
6
7
8
6.1.7.6
Connection diagram digital inputs/outputs, connector X21A
AGND and DGND (connector X3) must be joined together !
AX2040/2070 Installation Manual
In
+24V
power supply
NODE-
indicates a problem with
Out
ALARM
the node
Out
OUT_01
digital output
In
IN_00
capture input (fast)
In
IN_04
digital input
In
IN_01
digital input
In
HOME
reference switch
limit switch, positive di-
In
POSLIM
rection
Expansions, accessories
02/06
Pin
Type Description
9
In
10
Out
11
Out
12
In
In
13
In
14
15
In
AX20
GND
power supply
OUT_00
digital output
OUT_02
digital output
IN_02
digital input
IN_03
digital input
limit switch, negative
NEGLIM
direction
NODE-
disables Node
DISABLE
85
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