Absolute Process Instruments API 1040 G SPR Краткое руководство по эксплуатации - Страница 2

Просмотреть онлайн или скачать pdf Краткое руководство по эксплуатации для Система безопасности Absolute Process Instruments API 1040 G SPR. Absolute Process Instruments API 1040 G SPR 2 страницы. Dc input alarm trips with transmitter and loop supply

Печатать страницу

Installation and Setup

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 remov-

ing or installing module.

Précautions

ATTENTION! Tout le câblage doit être effectué par un élec-

tricien ou ingénieur en instrumentation qualifié. Voir le dia-

gramme 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.

Socket and Mounting

The module installation requires a protective panel or enclo-

sure. Use API 011 or finger-safe API 011 FS socket. See

specifications for maximum allowable socket voltages. Note

that some relay sockets may have lower voltage ratings. The

socket clips to a standard 35 mm DIN rail or can be attached

to a flat surface using the two mounting holes.

Signal Input

The input range is factory calibrated and does not require

adjustment. Polarity must be observed when connecting the

signal input.

If your transmitter has a current output, determine if it provides

power to the current loop or if it must be powered by the API

module. Use a multi-meter to check for voltage at the transmit-

ter output terminals. Typical voltage may be in the range of 9

to 24 VDC.

If your transmitter has a powered mA output, connect to

terminals 4 and 5.

If your transmitter is a passive device it can be powered by

the 18 Volt DC power supply at terminal 2. This may save the

expense of purchasing a separate power supply for the input

device. Connect to terminals 2 and 4.

Type of Input Device

– Terminal + Terminal

Sensor or transmitter with a voltage output.

Transmitter with a mA output that

provides power to the current loop.

Typically a 3 or 4-wire device.

Transmitter with mA output that is

unpowered. Typically a 2-wire device.

API module powers loop.

Relay Output Terminals

See wiring diagram for connections. The module does not

provide power to the relay contacts.

Inductive loads (motors, solenoids, contactors, etc.) will greatly

shorten relay contact life unless an appropriate RC snubber

is installed.

Module Power

Check model/serial number label for module operating voltage

to make sure it matches available power.

When using DC power, polarity must be observed. The positive

(+) must be wired to terminal 1 and negative (–) must be wired

to terminal 3.

Alarm Configuration

The relay operation is factory configured. The default configu-

ration is HI alarm normal acting. See model/serial number label

for non-standard relay configuration options.

Power Off

No Alarm

HI Alarm

GREEN

Relay 1

8 NC

7 Common

6 NO

API 1040 G Alarm States with Normal Action HI Alarm

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

Specifications are subject to change without notice. Contact factory

for assistance and see api-usa.com for latest datasheet version.

BSOLUTE

Socket

top view

Key down

when panel

mounting

See

api-usa.com/accessories

for socket information

and dimensions

API module with mA

output provides 18 VDC

loop power

NO = Normally Open

C = Common

NC = Normally Closed

API 1040 G Using +18V Loop Power Supply

Setpoint

This multi-turn potentiometer allows the operator to adjust the

level at which the alarm is activated. This control is adjustable

from 0 to 100% of the input range.

Deadband

The deadband potentiometer allows the alarm trip/reset win-

dow to be adjusted symmetrically about the setpoint from 1 to

100% of the span.

Deadband allows the operator to fine tune the point at which

the alarm trips and resets. The deadband is typically used to

prevent chattering of the relays or false trips when the process

5 (–)

(+)

signal is unstable or changes rapidly.

Alarm Adjustments

5 (–)

(+)

To calibrate the alarm section, set the deadband control to the

minimum (counterclockwise). The deadband will be 1.0% of

input span in this case.

(+18

4 (–)

VDC)

Set the signal source to a reference that represents the desired

trip point.

Adjust the setpoint control to the point at which the relay

changes state from a non-alarm to an alarm condition.

If a larger amount of deadband is desired turn the deadband potenti-

ometer clockwise. The deadband is symmetrical about the setpoint;

both transition points will change as deadband is increased.

Alternately set the setpoint and deadband until the desired trip/

reset points are set.

Output Test Function

The functional test button toggles the alarm status independent of

the input when depressed. It verifies the alarm and system opera-

tion. When released, the relay will return to its prior state. This can

be used as a diagnostic aid during initial start-up or troubleshooting.

Output Calibration

The top-mounted zero and span controls allow recalibration of

the analog output if required. Calibration requires an accurate

signal source and measuring equipment, such as an accurate

digital voltmeter.

OFF

Set the signal source to the minimum desired input. Adjust the

RED

zero control for the minimum desired output. Set the signal

Relay 1

source to the maximum desired input, adjust the span control

8 NC

for the maximum desired output. Repeat steps if necessary.

7 Common

Operation

6 NO

The green LoopTracker

that a signal is being sensed by the input circuitry of the mod-

ule. It also indicates the input signal strength by changing in

intensity as the process changes from minimum to maximum.

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

ROCESS NSTRUMENTS, Inc.

Passive

Terminals 2 and 4 provide

18 V loop power for a

Signal

passive mA input

(–)

Contact Set

(–)

Input

(–)

(+)

Output

(+)

18 VDC

AC or

PLC,

DC+

DC–

Display,

Module power

Recorder

PLC,

Display,

Recorder

SPR Option

0-1 V Setpoint

Retransmission

input LED provides a visual indication

1220 American Way Libertyville, IL 60048

800-942-0315

Phone:

(+)

Socket

top view

Key down

when panel

mounting

See

api-usa.com/accessories

for socket information

and dimensions

(–)

Output

API module with mA

output provides 18 VDC

loop power

Display,

Recorder

API 1040 G with Powered Current or Voltage Input

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

The red LoopTracker output LED provides a visual indication that the

output signal is functioning. It becomes brighter as the input and the

corresponding output change from minimum to maximum.

For current outputs, the 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.

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

ing conditions.

The bi-color alarm LED provides a visual indication of the alarm

status. In all configurations, a green LED indicates a non-alarm

condition and a red LED indicates an alarm condition.

High Alarm (Standard)

The alarm relay changes state when the input exceeds the

deadband trip point. The relay resets when the input drops below

the deadband reset point unless the module has a latching relay

option. For a high alarm, the trip point is above the reset point.

Low Alarm (L)

The alarm relay changes state when the input goes below the

deadband trip point. The relay resets when the input exceeds

the deadband reset point unless the module has a latching relay

option. For a low alarm, the trip point is below the reset point.

HT Latching Alarm Option

The module has a latching alarm with a push button reset. The

Reset button or powering the module off can be used to reset

the alarm provided the alarm condition no longer exists.

HP Option

The module has a latching alarm with a power-off reset.

Module power must be turned off to reset alarms. The alarm

will reset provided the alarm condition no longer exists.

Normal Acting Alarms (Standard)

Normal acting alarms energize the relay coils in a non-alarm

condition and de-energize them in an alarm condition. This will

create an alarm condition if the module loses power.

Reverse Acting Alarms (R Option)

Reverse-acting alarms energize the relay coils in an alarm con-

dition and de-energize them in a non-alarm condition. There is

no alarm condition with module power off.

SPR Set Point Retransmission Option

With the SPR option, a transmitted signal (0-1 VDC) indicates

the value of the alarm setpoint. The output will track the adjust-

ment of the alarm setpoint potentiometer.

api-usa.com

Fax: 800-949-7502

API 1040 G

Voltage

or Sourcing

mA Signal

(–)

(+)

Contact Set

Input

(+)

AC or

PLC,

DC+

DC–

Module power

PLC,

Display,

Recorder

SPR Option

0-1 V Setpoint

Retransmission