Absolute Process Instruments APD 7580 Manual de início rápido - Página 3
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I/O Wiring, Installation/Removal
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.
Signal +
Sensor Type
Terminal
2 wire or Namur
2
3
requiring external power
2 wire self generating
2
(VR)
3 wire PNP
2
3
current sourcing output
3 wire NPN
2
3
current sinking output
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
kΩ 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.
Type of Device for Output
– Terminal
Measuring/recording device
10 (–)
accepts a voltage input.
Measuring/recording device
accepts a mA (current) input
10 (–)
and the input is unpowered or
passive. APD module provides
the loop power.
Measuring/recording device
accepts a mA (current) input
11 (–)
and provides power to the
current 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.
A
A
P
P
BSOLUTE
BSOLUTE
ROCESS
ROCESS
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.
Upper Mount
Sensor
Signal –
Power
Terminal
Lower Mount
(+15 V)
n/a
Spring Clip
n/a
4
(+15 V)
4
(+15 V)
4
1
2
1. Tilt front of module
downward and position
against DIN rail.
2. Clip Lower Mount to bot-
tom edge of DIN rail.
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
+ Terminal
from top edge of DIN rail.
3. The module can now be removed
9
(+)
from the DIN rail.
switch E
set to "V"
9
(+20 V)
switch E
set to "I"
* Do not make
10
(+)
connections to
switch E
unused terminals!
set to "I"
Wire terminal
torque
0.5 to 0.6 Nm or
4.4 to 5.3 in-lbs
I
I
NSTRUMENTS
NSTRUMENTS
3
3. Push front of module
upward
until
Mount snaps into place.
1
2 3 4
Input
5 6 7 8
Not used
Output
9 1 0 1 1
1 2
Power
1 3 1 4
1 5
1 6
1220 American Way Libertyville, IL 60048
Phone:
800-942-0315
Two wire using 15 VDC supply
2 Signal
3 Power (+15 VDC)
Signal
Some sensors may
1
require a bleed resistor.
See sensor mfr. specs.
Two wire self-generating
2 Signal (+)
4 Common (–)
Signal
1
Three wire NPN
Typical wire colors shown.
2 Signal, Black or White
3 Power (+15 VDC)
Brown or Red
1
4 Common (–)
Blue or Black
Some sensors may require a load
resistor. See sensor mfr. specs.
and Sensor Load section at left.
Three wire PNP
Typical wire colors shown.
2 Signal, Black or White
3 Power (+15 VDC)
Brown or Red
1
4 Common (–)
Blue or Black
Some sensors may require a load
resistor. See sensor mfr. specs.
and Sensor Load section at left.
Input Sensitivity
Adjustment
Output Test Level
Sensitivity
Adjustment
Push to Test
Test Cal.
Output
Test
Output Span
Upper
Calibration
Output Zero
Calibration
Frequency to DC
Isolated Transmitter
+
Loop
Power
–
Source
9
–
Passive
mA
+
Device
R
i
+20V
9
+
mA
–
Device
R
i
+
9
+
Voltage
–
Device
13
13 Power AC or DC +
14
Earth Ground
16 Power AC or DC –
To maintain full isolation avoid combining power supplies
in common with input, output, or unit power.
api-usa.com
Fax: 800-949-7502
APD 7580
2 Wire
+15 VDC
2
3
4
15 kΩ typical
2 Wire
–
2
3
4
NPN
2
3
4
–
Sig.
+15
VDC
PNP
2
3
4
–
Sig.
+15
VDC
* Do not make
connections to
unused terminals!
Variable
Brightness
Input
Input
Loop
Tracker
Indicator
Variable
Brightness
Span
Output
Output
Loop
Zero
Tracker
Indicator
APD 7580
+
–
Module mA
output is
10
11
12
unpowered
Current Sinking
Output
Switch E set to "I"
Module
–
powers mA
10
11 12
output loop
Current Sourcing Output
Switch E set to "I"
+20 VDC
at terminal 9
–
10
11 12
Voltage Output
Switch E set to "V"
14
15
16
Cu 60/75°C
conductors
14 AWG
max.