Electrical Connections
Polarity must be observed for input and output wiring connec-
tions. If the input and/or output do not function, check switch
settings and wiring polarity.
*
Do not make any connections to unused terminals or use
them as wiring junctions for external devices. This may cause
permanent damage to the module!
Input
The APD 7580 is compatible with most types of sensors as
long as the waveform produces a minimum 100 mV amplitude
change and a minimum 5 microsecond pulse width.
A 15 VDC supply is available to power the sensor if required.
Always refer to the sensor manufacturer's data sheet to deter-
mine supply voltage compatibility and proper wiring.
Sensor Load
The signal input of the APD 7580 is capacitively coupled to
prevent any DC in the input. Some sensors, typically those
without an internal load resistor, require a resistive load in
order to function.
The resistor value may be specified by the sensor manufacturer
as the "minimum resistive load" or calculated from the sensor
manufacturer's specified "load current range".
The 15 VDC power supply is capable of providing 25 mA. A
load current range of 3 mA to 25 mA would typically use a 5
k
Ω
to 500
Ω
resistor.
For NPN sensors use an external resistor across terminals 2
and 3 if required.
For PNP sensors use an external resistor across terminals 2
and 4 if required.
Output
Polarity must be observed when connecting the signal output to
the load. See the table below and the wiring diagrams at right.
The APD 7580 output can be wired to provide power to drive
a current loop. Determine if your receiving device provides
power to the current loop or if the loop must be powered by
the APD module.
Use a multi-meter to check for voltage at your device's input
terminals. Typical voltage may be 9-24 VDC if it provides power
to the loop.
Module Power
Check model/serial number label for module operating voltage
to make sure it matches available power.
When using DC power, either polarity is acceptable, but for
consistency with similar API products, positive (+) can be wired
to terminal 13 and negative (–) can be wired to terminal 16.
Sensor Type
Terminal
Sensor
Power
Signal –
Terminal
2 wire or Namur
requiring external power
2
3
(+15 V)
n/a
2 wire self generating
(VR)
2
n/a
4
3 wire PNP
current sourcing output
2
3
(+15 V)
4
3 wire NPN
current sinking output
2
3
(+15 V)
4
I/O Wiring, Installation/Removal
APD 7580
Type of Device for Output
– Terminal
+ Terminal
Measuring/recording device
accepts a voltage input.
10 (
–)
9
(
+)
switch E
set to “V”
Measuring/recording device
accepts a mA (current) input
and the input is unpowered or
passive. APD module provides
the loop power.
10 (
–)
9
(+20 V)
switch E
set to “I”
Measuring/recording device
accepts a mA (current) input
and provides power to the
current loop.
11 (
–)
10
(
+)
switch E
set to “I”
Spring Clip
Upper Mount
Lower Mount
Mounting to a DIN Rail
Install module vertically on a 35 mm DIN rail in a protective
enclosure away from heat sources. Do not block air flow. Allow
1" (25 mm) above and below housing vents for air circulation.
Removal
Avoid shock hazards! Turn signal input, output, and power off
before removing module.
1. Push up on bottom back of module.
2. Tilt front of module downward to release Upper Mount
from top edge of DIN rail.
3. The module can now be removed
from the DIN rail.
3. Push front of module
upward until Upper
Mount snaps into place.
1. Tilt front of module
downward and position
against DIN rail.
2. Clip Lower Mount to bot-
tom edge of DIN rail.
1
2
3
13
Power AC or DC +
14
Earth Ground
16
Power AC or DC –
14
13
15
16
Voltage Output
Switch E set to “V”
10
9
11 12
+
–
Voltage
Device
+
–
Current Sourcing Output
Switch E set to “I”
+20 VDC
at terminal 9
mA
Device
R
i
10
9
11 12
+20V
–
+
–
Two wire self-generating
2
Signal (+)
4
Common (–)
2 Wire
2
1
3
4
Signal –
Current Sinking
Output
Switch E set to “I”
10
9
11
12
+
–
–
+
+
–
Loop
Power
Source
Passive
mA
Device
R
i
Test Cal.
Span
Zero
Test
Input
Output
Sensitivity
Loop
Tracker
Loop
Tracker
APD 7580
Frequency to DC
Isolated Transmitter
Output Test Level
Adjustment
Push to Test
Output
Output Span
Calibration
Output Zero
Calibration
Variable
Brightness
Output
Indicator
Variable
Brightness
Input
Indicator
Input Sensitivity
Adjustment
Two wire using 15 VDC supply
2
Signal
3
Power (+15 VDC)
Signal
+15 VDC
15 k
Ω
typical
2
1
3
4
Some sensors may
require a bleed resistor.
See sensor mfr. specs.
2 Wire
Three wire NPN
Typical wire colors shown.
2
Signal, Black or White
3
Power (+15 VDC)
Brown or Red
4
Common (–)
Blue or Black
Some sensors may require a load
resistor. See sensor mfr. specs.
and Sensor Load section at left.
2
1
3
4
NPN
–
+15
VDC
Sig.
Three wire PNP
Typical wire colors shown.
2
Signal, Black or White
3
Power (+15 VDC)
Brown or Red
4
Common (–)
Blue or Black
Some sensors may require a load
resistor. See sensor mfr. specs.
and Sensor Load section at left.
2
1
3
4
PNP
–
+15
VDC
Sig.
To maintain full isolation avoid combining power supplies
in common with input, output, or unit power.
Cu 60/75°C
conductors
14 AWG
max.
1
2 3 4
5 6 7 8
9 10 11
12
13 14
15
16
Input
Not used
Output
Power
api-usa.com
1220 American Way Libertyville, IL 60048
Phone:
800-942-0315
Fax: 800-949-7502
A
A
BSOLUTE
BSOLUTE
P
P
ROCESS
ROCESS
I
I
NSTRUMENTS
NSTRUMENTS
Wire terminal
torque
0.5 to 0.6 Nm or
4.4 to 5.3 in-lbs
Module
powers mA
output loop
Module mA
output is
unpowered
* Do not make
connections to
unused terminals!
* Do not make
connections to
unused terminals!
