Absolute Process Instruments DuoPak APD 2067 Podręcznik - Strona 2

Przeglądaj online lub pobierz pdf Podręcznik dla Konwerter mediów Absolute Process Instruments DuoPak APD 2067. Absolute Process Instruments DuoPak APD 2067 2 stron. Two channel signal converter/isolator/transmitter, factory ranged channel 1: ac to dc, channel 2: frequency to dc

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Instructions

Precautions

WARNING! All wiring must be performed by a qualified electrician

or instrumentation engineer. See diagram for terminal designa-

tions and wiring examples. Consult factory for assistance.

WARNING! Avoid shock hazards! Turn signal input, output, and

power off before connecting or disconnecting wiring, or removing

or installing module.

Précautions

ATTENTION! Tout le câblage doit être effectué par un électricien

ou ingénieur en instrumentation qualifié. Voir le diagramme pour

désignations des bornes et des exemples de câblage. Consulter

l'usine pour assistance.

ATTENTION! Éviter les risques de choc! Fermez le signal d'entrée,

le signal de sortie et l'alimentation électrique avant de connecter

ou de déconnecter le câblage, ou de retirer ou d'installer le module.

API maintains a constant effort to upgrade and improve its products.

Specifications are subject to change without notice. See api-usa.com for

latest product information. Consult factory for your specific requirements.

WARNING: This product can expose you to chemicals includ-

ing nickel, which is known to the State of California to cause

cancer or birth defects or other reproductive harm. For more

information go to www.P65Warnings.ca.gov

Electrical Connections

Polarity must be observed for signal wiring connections. If the

input and/or output do not function, check wiring and polarity.

Each product is factory configured to your exact input and output

ranges as indicated on the serial number label.

Outputs

For milliamp ranges determine if your devices provide power to

the current loop or if the loop must be powered by the APD mod-

ule. Typical voltage may be 9-24 VDC at your device's terminals if

it provides power to the loop.

Device for Output Channel 1

Voltage input device.

Unpowered or passive mA input device.

APD module provides the loop power.

mA input device powers the current loop.

Device for Output Channel 2

Voltage input device.

Unpowered or passive mA input device.

APD module provides the loop power.

mA input device powers the current loop.

Input 1, AC

Any polarity may be used for an AC input. A transmitter DC power

supply is available at terminals 22 and 23, but is not commonly

used with an AC input.

AC Input Channel 1

Terminal

Device with an AC voltage or

AC milliamp output.

Transmitter power supply.

(+15 VDC)

Input 2, Frequency

The input range is pre-configured at the factory. No input calibra-

tion is necessary. The frequency input is compatible with most

types of sensors that product 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 determine supply voltage

compatibility and proper wiring.

Signal

Frequency Sensor Ch. 2

Com.

2 wire or Namur

n/a

requiring external power

2 wire self generating (VR)

21 (–)

3 wire PNP or NPN

Sensor Load

The frequency signal input 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.

Module Power Terminals

Check label for module operating voltage to make sure it matches

available power. The power supplies are fuse protected and the

unit may be returned to API for fuse replacement.

When using DC power, either polarity is acceptable, but for

consistency, wire positive (+) to terminal 25 and negative (–) to

terminal 28.

BSOLUTE

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.

1. Tilt front of module down and posi-

tion the lower spring clips against the

bottom edge of DIN rail.

2. Push front of module upward until

upper mount snaps into place.

Removal

Avoid shock hazards! Turn signal

input, output, and power off.

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.

Calibration

Input and output ranges are factory pre-configured (at 24°C ±1°C).

Front-mounted Zero and Span potentiometers for each channel can

be used to compensate for load and lead variations.

1. Apply power to the module and allow a minimum 30 minute

warm up time.

2. Using an accurate calibration source, provide an input to the

module equal to the minimum input required for the application.

3. Using an accurate measurement device for the output, adjust

the Zero potentiometer for the exact minimum output desired.

Terminal Terminal

The Zero control should only be adjusted when the input signal

3 (–)

(+)

is at its minimum. This will produce the corresponding minimum

output signal. For example: 4 mA for a 4-20 mA output or –10 V

3 (–)

(+20 V)

for a ±10 V output.

2 (–)

(+)

4. Set the input at maximum, and then adjust the Span pot for the

exact maximum output desired. The Span control should only

Terminal Terminal

be adjusted when the input signal is at its maximum. This will

7 (–)

(+)

produce the corresponding maximum output signal. Example:

for 4-20 mA output, set the Span control to 20 mA.

7 (–)

(+20 V)

5. Repeat adjustments for both output channels for maximum

6 (–)

(+)

accuracy.

Ch. 2 Sensitivity Adjustment

This multi-turn potentiometer provides an adjustable threshold

level that the incoming signal must overcome before an output can

be produced. This is used to limit noise and minimize false input

Terminal

signals that may cause erroneous readings.

Fully clockwise: (max. sensitivity), input threshold is ±25 mV.

Fully counterclockwise: (min. sensitivity), input threshold is ±2.5 volts.

Output Test Function

When the Test button is depressed it will drive the output with a

known good signal that can be used as a diagnostic aid during

initial start-up or troubleshooting. When released, the output will

return to normal.

Each Test Cal. can be adjusted to set the test output from 0 to 100%

of the output span. Press and hold the Test button and adjust the

corresponding Test Cal. potentiometer for the desired output level.

They may optionally be externally wired for remote test operation or

Sensor

Signal

a manual override. See wiring diagram at right.

Power

Input

Operation

(+15 V)

(+)

The APD 2067 accepts one AC voltage or current input and one

frequency input and provides two optically isolated DC voltage or

n/a

(+)

current outputs that are linearly related to the inputs.

(+15 V)

(+)

Green LoopTracker

each signal is being sensed by the input circuitry of the module.

They also indicates the input signal strength by changing in inten-

sity as the process changes from minimum to maximum.

If an LED fails to illuminate, or fails to change in intensity as the

process changes, check the module power or signal input wiring.

Note that it may be difficult to see the LEDs under bright lighting

conditions.

Two red LoopTracker output LEDs provide a visual indication that

the output signals are functioning. They become brighter as the

input and each corresponding output change from minimum to

maximum.

For a current output the red LED will only light if the output loop

current path is complete. For either current or voltage outputs,

failure to illuminate or a failure to change in intensity as the process

changes may indicate a problem with the module power or signal

output wiring.

NSTRUMENTS

Upper Mount

Spring Clips

input LEDs provide a visual indication that

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Phone:

800-942-0315

APD 2067

Voltage

Device 1

–

Voltage

Output

Ch. 1

Device 1

Current

–

Loop

Sinking

Power

Output

Source 1

–

Module mA

output is

unpowered

Ch. 1

Current

Device 1

Sourcing

Output

–

+ 20V

Module

powers mA

output loop

Ch. 1

External

Contacts

for Test

Function

11 12

Channel 1

Output

Loop

Test Cal.

Tracker

Test

Span

Input

Loop

Zero

Tracker

APD 2067

Channel 1

AC to DC

Isolated Transmitter

AC Input

Ch. 1

AC Voltage or mA

Input

+15 VDC, 25 mA

sensor power

To avoid

available at

damage to

terminal 18

the module,

do not

make any

connections

to unused

terminals

Wire terminal

torque

0.5 to 0.6 Nm or

4.4 to 5.3 in-lbs

To maintain

full isolation

avoid com-

bining power

supplies in

Cu 60/75°C

common with

conductors

inputs, out-

14 AWG

puts, or unit

max.

power.

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Fax: 800-949-7502

Voltage

Device 2

–

Ch. 2

Device 2

–

Loop

Power

Source 2

–

Ch. 2

Device 2

–

+ 20V

Ch. 2

15 16

Channel 2

Sensitivity

Output

Loop

Test Cal.

Tracker

Test

Span

Input

Loop

Zero

Tracker

Channel 2

Frequency to DC

Isolated Transmitter

–

+Sig

2 Wire

15 kΩ typ.

2 wire using 15 V supply

See sensor specs. if

bleed resistor is required

–

+Sig

2 Wire

2 wire self-generating

–

+Sig

Load resis.

NPN

3 wire NPN

See sensor specs. if load

resistor is required

+Sig

–

PNP

Load resis.

3 wire PNP

See sensor specs. if

load resistor is required

28 Power AC or DC –

26 Earth Ground

25 Power AC or DC +