Absolute Process Instruments API 7500 G SS A230 Schnellstart-Handbuch - Seite 2

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Installation and Setup

Precautions

WARNING! All wiring must be performed by a qualified electrician or

instrumentation engineer. See diagram for terminal designations 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 lead and nickel, which are 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

I/O Range Switch Settings

It is easier to select ranges before installation. Ranges are listed

below and the module side label lists common ranges. See the

model/serial number label for module options, or if a custom range

was specified.

Three rotary switches and two slide switches located on the side of

the module are used to select input and output ranges. For ranges

that fall between the listed ranges use the next highest setting and

trim the output signal with the zero and span potentiometers.

1. Set slide switch A to current "I" or voltage "V" depending on input

type. The input selector switch determines the input impedance

for the module, typically 50 Ω for current inputs and 1 MΩ or

greater for voltage.

2. From the table, find the rotary switch settings that match your

input range and set Input B and Offset C.

3. From the table, find your frequency output range and set slide

switch E to HI or LO to match your frequency output range.

4. From the table, find your frequency range and set rotary switch

D to match your frequency output range.

7500G

Input

Select

Range

Offset

Electrical Connections

Polarity must be observed for input and output wiring connections. If

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

Socket and Mounting

Install module in a protective panel or enclosure. Allow space around

module for air flow. Use API 008 or API 008 FS socket. See specifica-

tions for maximum allowable socket voltages. The socket clips to a

standard 35 mm DIN rail or can be mounted to a flat surface.

Input Wiring

See the wiring diagrams. Polarity must be observed when connect-

ing the signal input. The API 7500 G input can be wired to provide

power to drive a current loop. It can also be wired to a device that

provides loop power.

Determine if your device provides power to the current loop or if the

loop must be powered by the API module. Use a multi-meter to check

for voltage at your device's output terminals. Typical voltage may be

9-24 VDC if it provides power to the loop.

mV Input

A B C Volt Input A B C mA Input ABC

0-50 mV V 8 0

V 1 0

0-1 V

0-100 mV V 9 0

0-2 V

V 2 0

0-200 mV V A 0

V 4 0

0-2.5 V

0-250 mV V C 0

V 3 0

0-4 V

0-400 mV V B 0

1-5 V

V 3 D

0-500 mV V 0 0

V 5 0

0-5 V

0-10 V

V 6 0

V 6 4

±5 V

±10 V

V 7 4

BSOLUTE

ROCESS

Standard Output

Polarity must be observed when connecting the signal output to the

load. The positive connection (+) is connected to terminal 7 and the

negative (–) is connected to terminal 8.

The standard API 7500 G has an open drain MOSFET (open col-

lector) output. This output requires a user-supplied external power

supply and pull-up resistor unless your input device is compatible

with this type of output. The output signal is protected to a maxi-

mum of 24 V. See wiring diagram below.

API 7500 G

Output LO

0-100 Hz

0-200 Hz

0-300 Hz

0-400 Hz

0-500 Hz

0-600 Hz

0-700 Hz

0-800 Hz

0-900 Hz

0-1000 Hz

0-1100 Hz

0-1200 Hz

0-1300 Hz

0-1400 Hz

0-1500 Hz

API 7500 G SS

Output LO

0-1 Hz

0-2 Hz

0-3 Hz

0-4 Hz

0-5 Hz

0-6 Hz

0-7 Hz

0-8 Hz

0-9 Hz

0-10 Hz

0-11 Hz

0-12 Hz

Output

0-13 Hz

Range

0-14 Hz

0-15 Hz

M02 Option TTL Output

The M02 TTL output option uses an internal power supply and an

internal pull up resistor. An external power supply is not needed.

The output amplitude can vary from 1 VDC to 12 VDC depending

on the input impedance of your device. Maximum current drive

capability is 10 mA.

Module Power

Check model/serial number label for module operating voltage to

make sure it matches available power.

AC power is connected to terminals 1 and 3.

For DC powered modules, polarity MUST be observed. Positive (+) is

wired to terminal 1 and negative (–) is wired to terminal 3.

Output Calibration

Input and output ranges, if specified on your order, are factory

pre-configured (at 24°C ±1°C). Top-mounted zero and span poten-

tiometers can be used should fine-tuning the output be necessary.

Note: Perform the following calibration procedure any time switch

settings are changed.

1. Apply power to the module and allow a minimum 20 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 frequency measurement device for the

output, adjust the Zero potentiometer for the exact minimum

IC0

0-1 mA

output desired. The Zero control should only be adjusted when

0-2 mA

I00

the input signal is at its minimum. This will produce the cor-

I10

0-4 mA

responding minimum output signal of 0 Hz.

I20

0-8 mA

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

2-10 mA

I2D

exact maximum output desired. The Span control should only

I40

0-10 mA

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

0-16 mA

I30

produce the corresponding maximum output signal.

I50

0-20 mA

5. Repeat adjustments for maximum accuracy.

4-20 mA

I3D

NSTRUMENTS

API 7500 G

D E

Output HI

1 L

1 H

0-2 kHz

2 L

0-4 kHz

2 H

3 L

3 H

0-6 kHz

4 L

4 H

0-8 kHz

5 L

0-10 kHz

5 H

6 L

6 H

0-12 kHz

7 L

7 H

0-14 kHz

8 L

0-16 kHz

8 H

9 L

9 H

0-18 kHz

A L

0-20 kHz

A H

B L

0-22 kHz

B H

C L

C H

0-24 kHz

D L

0-26 kHz

D H

E L

E H

0-28 kHz

F L

F H

0-30 kHz

API 7500 G SS

D E

Output HI

1 L

1 H

0-20 Hz

2 L

0-40 Hz

2 H

3 L

3 H

0-60 Hz

4 L

0-80 Hz

4 H

5 L

0-100 Hz

5 H

6 L

6 H

0-120 Hz

7 L

0-140 Hz

7 H

8 L

8 H

0-160 Hz

9 L

9 H

0-180 Hz

A L

0-200 Hz

A H

B L

B H

0-220 Hz

C L

C H

0-240 Hz

D L

0-260 Hz

D H

E L

E H

0-280 Hz

F L

0-300 Hz

F H

1220 American Way Libertyville, IL 60048

Phone:

800-942-0315

Fax: 800-949-7502

API 7500 G, API 7500 G SS

Cutout Control

This multi-turn potentiometer provides the user with a low thresh-

old adjustment. It disables output when input falls below a preset

level. The low cutout potentiometer is adjustable from 2% to 25% of

input range. The input signal must overcome this setting to produce

an output from the unit.

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. Additionally external contacts across terminals 5

and 6 can be used as a remote test function or manual over ride.

The Test Cal. potentiometer is factory set to approximately 50%

output. It can be adjusted to set the test output from 2 to 100% of

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

Cal. potentiometer for the desired output level.

Operation

The API 7500 G accepts a DC voltage or current input and provides

an optically isolated frequency output that is linearly related to

the input. Note the output duty cycle decreases as the frequency

increases in the high ranges.

The variable brightness green LoopTracker

visual indication of the input level. It changes in intensity as the input

changes from minimum to maximum. If the LED fails to illuminate, or

change in intensity as the input changes, it may indicate a problem

with module power, or signal input wiring.

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

conditions.

The red LoopTracker output LED provides a visual indication that

the output frequency signal is functioning. It becomes brighter as

the input and the corresponding output change from minimum to

maximum.

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.

Passive mA

Signal

Sourcing

(–)

(+)

mA input

Voltage or

sinking mA

Powered

input

mA Signal

(–)

(+)

Socket top

view

Key down

when

panel

mounting

(+)

(–)

Standard

Power

MOSFET

Supply

(open collec-

Power

tor) frequency

Supply

(+)

(–)

12 VDC

output

24 VDC

(+)

(–)

PLC, Display,

Recorder w.

Freq. Input

M02 option

TTL frequency

output

(+)

(–)

PLC, Display,

Recorder w.

To maintain full isola-

Freq. Input

tion avoid combining

power supplies in

common with input,

output, or unit power.

api-usa.com

input LED provides a

Terminals 4 and 5

provide 18 V loop

power for a passive

device

Terminals 5 and 6 are

used for a powered

mA input device

AC or DC (–)

Module power

AC or DC

(+)

Pull-Up

Resistor

5 VDC

1 kΩ

2.2 kΩ

3.3 kΩ

 * Do not make

connections to

unused terminals!