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Wiring 3-9
IQ 2000/5000 Installation Manual
Digital Inputs and Outputs
Figure 3.9 illustrates the IQ 2000/5000 PDM, which provides 16 optically isolated inputs and
eight optically isolated outputs for machine control and interface. General purpose I/O uses a
24 volt DC supply voltage. The PDM has an internal 24 VDC @ 500 mA power supply for this
purpose, isolated from the logic common. The 24 volt common must be tied to machine ground
to provide a common ground reference. The 1A fuse, F1, on the PDM protects the internal
24 VDC supply.
Pin 1 of the interface connectors P1, P2, and P3 is located at the bottom of the connector and is
indicated on the front of the PDM.
TIP
The user may supply external 24 VDC power by removing wire jumpers W3
and W4 on the PDM logic board, and connecting the external supply to the
+24 VDC and 24 volt common on connectors P1 and P2.
Intro
Intro
F
IGURE
3.9
Typical Digital I/O Wiring
!
CAUTION: The IQ 2000/5000 uses sinking (NPN) style inputs
and outputs, the most common interface used in the USA. If a
ground fault occurs on an input, it can become active and may
result in a potentially hazardous unanticipated machine state.
Contact Electro-Craft for more information.
P2
P1
12
11
10
9
8
7
6
5
4
3
2
1
12
13
14
11
10
9
8
7
6
5
4
3
2
1
OUTPUT LOADS: RESISTANCE IS 330 OHM MINIMUM
INPUT SWITCHES: RESISTANCE IS 3000 OHM MAXIMUM
24 VOLT COMMON
FORWARD LIMIT
REVERSE LIMIT
ENABLE
START
HOME SWITCH
HOME COMMAND
JOG REVERSE
JOG FORWARD
PAUSE
ERETURN
INTERRUPT #1
INTERRUPT #2
GENERAL PURPOSE INPUT INPUT 13
INPUT 12
INPUT 11
INPUT 10
INPUT 9
INPUT 8
INPUT 7
INPUT 6
INPUT 5
INPUT 4
INPUT 3
INPUT 2
INPUT 1
GENERAL PURPOSE INPUT
GENERAL PURPOSE INPUT
GENERAL PURPOSE INPUT
GENERAL PURPOSE OUTPUT
GENERAL PURPOSE OUTPUT
GENERAL PURPOSE OUTPUT
PROGRAM RUNNING
AT HOME
HOME SEQUENCE COMPLETE
IN POSITION
ERROR OUTPUT 8
OUTPUT 7
OUTPUT 6
OUTPUT 5
OUTPUT 4
OUTPUT 3
OUTPUT 2
OUTPUT 1
INPUT 16
INPUT 15
INPUT 14
+24 VDC
W4
INTERNAL 24 VDC SUPPLY
TYPICAL INPUT
3.3 K
24 VOLT COMMON
TYPICAL OUTPUT
W3
INTERNAL 24 VDC SUPPLY
INTERNAL
75mA MAX PER OUTPUT
500mA TOTAL