Weidmuller PTX800D User Manual

de

Bedienungsanleitung

Zähler und Totaliser mit Zusatz­funktionen und Grenzwertüberwachung 3

en

Operating instructions

Counter and totaliser with auxiliary
functions and threshold monitoring 24

PTX800D 61001050/00/01.08

en

PTX800D

Contents

Operation 25
Setup options 27
Setup Sequence 31
Installation 34
Modifications
Output calibration 40

39

24

en

PTX800D

Analogue output
(gives rate or total)

Pulse Output

Pulse Input

Total or
Rate Display

Power for Input device

Reset Pulse Input

Alarm 2

Power

Supply

Alarm 1

PTX800D

• Operation

General

The PTX800D is a scalable pulse counter/rate indicator for digital pulse
signals. It will display either the rate or total according to setup. The
other value is displayed when you hold down the TOTAL/RATE key.

For more complex applications, the PTX800D can be supplied with
two alarm channels and/or an analogue retransmit output.

Alarm conditions are indicated by the LEDs above buttons marked AL1
(for alarm channel one) and AL2 (for alarm channel two).

Manually clearing tripped alarms

The alarm channels can be set for automatic or manual reset. For
manual reset, the LED will flash when an alarm trips. These alarms will
only clear if you have acknowledged the alarm and the trip condition
has cleared. Press AL1 or AL2 to acknowledge the alarm.

25

Viewing the alarm setpoints

Press the AL1 or AL2 at any time to display the setpoint for that
channel. The value will be shown for 5 s. If the alarms are disabled,
pressing the key will have no effect.

Changing the alarm setpoints

Press PGM while the setpoint is on display (see above), you will be able
to change the value using the ì and Å keys. To save the changes,
press PGM. Note: you can disable this feature during setup for greater
security.

Checking the Rate/Total

You can set up the PTX800D to show either total or rate. If the total
is normally on display, you can check the rate by holding down the

TOTAL/RATE key.

Reseting the total

If you press the RESET key, the PTX800D will set the total to zero and
clear any total alarms (you can disable this feature during setup for
greater security). There is also an external reset input that you can use
to clear the total remotely.

Reviewing the setup options

To review the setup (in read only mode) press the PGM key. The
PTX800D will show the software version number. Press the Å key to
see the next setting. The information in review mode is shown in the
same order as setup mode (some irrelevant items will be skipped).

There is a 10 s timeout during review mode or you can press PGM
again to return the display to normal operation.

You can review the setup while the instrument is in service - the unit
will continue to operate normally. Setup mode

26

Changing the setup options

You should only use setup mode if you have to change a setting or
calibrate the outputs. The setup mode stops all operation. As soon as
you have setup the last parameter, the unit behaves as if it has been
switched on with the new settings. This does not mean that the total is
reset - you must do this yourself if necessary.

If you want to abandon all the changes you have made, simply remove
the security link (or remove the power) before the save message is
shown.

To change the instrument setup:

. Con

nect the security link (short pins 8 & 12).

1

2. Press the
The setup sequence is shown in the table on page two.

PGM key.

• Setup options

General

There are four basic areas of the instrument operation that must be
setup on a fully configured PTX800D. They are:

e/frequency inputs;

• Puls

• Display and keypad operation;

• Alarms one and two (optional); and

• Analogue outputs (optional).
You can disable the alarms and/or analogue outputs if you do not need

them (so that their settings are skipped).

Software version

The information in this guide refers to versions 1.00 to 1.09.

Model

PTX series instruments all look identical from the front so this identifies
the intrument type.

27

Input signal type

Sets the input trigger and reset levels to suit the pulse source. The
table below gives the threshold values.

For contact closure inputs, the software incorporates debouncing

min

imum pulse width 20 mS / maximum frequency 10 Hz).

(

Input type

LOAC

HIAC

LOdC

HIdC

CoN

Low volta ge inputs High vo ltage inputs
Trigger Rese t Trigger Rese t

50 mV -50 mV 200 mV -40 0 mV Low level AC sign als

2.5 V -2.5 V 14 V -10 V High level A C signals

3.5 V 0.5 V 20 V -2 V Low level DC signals

6 V 3 V 35 V 10 V High l evel DC signals

6 V 3 V 35 V 10 V Contact clos ure

Desc ription

Pulse rate

Set the pulse rate to low if the maximum input frequency is below

z. Otherwise it should be set to high.

1 kH

Pulse scaling factor

Sets the number of pulses received for a unit change in the total. So, if
you have a flowmeter that gives four pulses per litre, you can show the
total in litres by setting the pulse scaling factor to four, or in kilolitres by
setting the pulse scaling factor to four thousand. You can not set it to
more than 10 000 display digits (i.e., ignoring the decimal point).

Total decimal point

The total decimal point position sets the number of decimal places for
the total display. Totals are displayed using the full eight digits.

Rate decimal point

Sets the number of decimal places for the rate display. Rates are
displayed as five digit numbers.

28

Rate scaling factor

The rate scaling factor sets the ratio between the total display and the
rate display. It must be a power of ten (i.e., 1000, 100, ..., 0.01, or 0.001).

Number of samples

X800D calculates the rate every 260 mS. The analogue output

The PT
and display are then updated from the average over the programmed
number of samples. For example, if you set the number of samples to

e analogue output and rate display will be updated every 2.6 s.

10, th

Rate timebase

The rate timebase setting sets the timebase for the rate display. It can
be set to hours, minutes or seconds.

Show rate or total

Use the display rate/total setting to choose the measurement that will
normally be on display.

Enable Reset key

The front panel reset key can be used to reset the total. You can
disable this feature (for added security) using this setting.

Alarms disable/enable

If you do not need alarms, you can disable them. This simplifies the
setup process, as all of the parameters related to the alarm operation
are skipped.

Alarm type

Each alarm channel can monitor the total or the rate. Total alarms
operate when the setpoint is exceeded. A ‘total’ alarm trip condition
clears when the total is reset.

Setpoint

The setpoint is the display value at which an alarm activates. It can be
changed during normal operation if the setpoint security option is off.

29

Alarm action

High alarms are active above the setpoint and low alarms are active
below the setpoint. Total alarms are always ‘high’ type, so this setting
is not shown.

Deadband

This parameter sets the “hysteresis” for an alarm channel; the alarm will
clear above or below the setpoint to prevent chatter when the rate level
passes the setpoint. The minimum deadband is one display count.
Total alarms do not need a deadband setting.

Alarm output energisation options

There are many applications where it is important to raise an alarm
if the instrument power supply is cut off. Normally energised coil
operation allows for this application.

Alarm timer delays

Sets the minimum time that an alarm condition must be present to be
recognised.

Setpoint security

You can change the setpoints from the front panel. If you want to
disable this feature, switch on the setpoint security.

Alarm reset sequence

Alarms normally reset automatically when a trip condition has passed.
Manual reset requires the operator to press the appropriate key before
the alarm will clear. The alarm status LED flashes until the alarm is
acknowledged and then remains on until the trip condition is gone.

Total or rate output and range

To set up the analogue outputs you must first choose if the output is
going to be proportional to the rate or the total. After that you can set
up the portion of the rate/total range that you want to retransmit.

30

Analogue output format

These setup parameters let the PTX800D show the output range
correctly during review mode and prompt for the correct values during
calibration. They have no affect on the operation of the instrument. If
you change them you must be prepared to calibrate the outputs.

Output Action

Direct action results in the normal, proportional output. Reverse action
gives an output that is inverted with respect to the rate, so a rate of
zero gives a full scale output and vice versa.

Display Intensity

There are fourteen different levels.

• Setup Sequence

Sett ing Display Descript ion

S/ W Version
Model

Inputs

Input type

Input puls e rate

Pulse scaling
fact or

vEr_1.01

Pulse

IP=

LOdC
HIdC
LOaC
HIAC

Con

Freq=_LO
Freq=_HI

Pulse_dp=

123.45

PulSE_SF=

1.230

S/ W Version 1.01 - - Next
Pulse coun ter: PT X800D - - Next

Intr oduces the inpu t type - Next
Low le vel DC

High level D C
Low le vel AC
High level A C
Cont act closure (deboun ced)

Low frequency input (below 1 kHz)
High f requency i nput (from 1 to 10 kHz)

Pulse scaling facto r decimal point
Demo display for decim al point select ion-Shif t-Shif t

Intr oduces the puls e scaling f actor
e.g., 1. 230 Pulse = 1 Unit change in tot al- Dec- Inc

Å ì

PGM

Toggle Accept

Toggle Accept

Next

Accept

Next

Accept

31

Setup Sequence (continued)

Total and rate display set tings and scaling

Total decima l
point

Rate decimal
point

Rate scaling
fact or

Rate timeb ase

Numbe r of
sampl es

Show r ate or
tota l

Reset key enable

Rese t Total Key
Enable

Alarm enable

Alar ms 1 & 2
Select

Alarm channel one set tings

Coil energ isa­tion

Alar m one type

Alar m one
action

Setp oint value

Deadb and
value

Timer delay

Alarm channel two setting s

As ab ove

tot_dp=

1234.5

tot_dp=

12.345

rATE=_SF=

1000

rate_SEC
rate_min

rate_Hr

SAmp=

dis=rate

dis=tot

En_resY
En_resn

A12Y
A12n

A1_nor_E
A1_nor_d

A1=_rate
A1=_tot_

A1=_LO
A1=_HI

Set_Pt1=

50.00

dband_1=

0.01

delay_1=

As channel one (except uses A2_no r_E, A2=_r ate,..., del ay_2=)

Intr oduces total decima l point
Demo, e.g., tota l shown to o ne decimal p lace-Shif t-Shif t

Intr oduces rate decimal point
Demo, e.g., rate shown to 3 decima l places-Shif t-Shif t

Intr oduces rate scaling factor
e.g., 10 00 rate units = 1 total unit

Rate is in units per second
Rate is in units per minute
Rate is in units per ho ur

Intr oduces the number of s amples use d for
rate, e.g., 10

10

Display normally sho ws the rate
Display normally sho ws the total

RESET key rese ts count
RESET key ignored

Enable
Disable (Select this option for PMX420)

Normally e nergised
Normally d e-energi sed

Channel on e monitors tot al
Channel on e monitors rate

Low t ype (active below setpoint)
High t ype (acti ve above setpoint)

Setp oint value
e.g., 5 0.00 %

Deadb and value
e.g., 0 .01 %

Timer delay (set to 0 s to disable)
e.g., 2 0 s

20

-

Dec- Inc

Toggle Accept

-

Dec- Inc

Toggle Accept

Toggle Accept

Toggle Accept

Toggle Accept

Toggle Accept

Toggle Accept

-

Dec- Inc

-

Dec- Inc

-

Dec- Inc

Next

Accept

Next

Accept

Next

Accept

Next

Accept

Next

Accept

Next

Accept

Next

Accept

32

Setup Sequence (continued)

Gener al alarm settings

Setp oint
secur ity

Alar m reset
seque nce

Analogue output set tings (not shown unless outp uts are fitted)

Rate or total
output

Rate range
repre sented

Total r ange
repre sented

Outp ut type

Outp ut range

Outp ut Action

Calibr ation options

Calibrate
Outp ut?

Display
Intensit y

Save values

SECure_y
SECure_n

reS_Auto
rES_Oper

Out=rate
Out=_tot

rate_LO=

0.00

rate_HI=

100.00

tot_LO=

0.00

tot_HI=

100.00

Out=_Cur

Out=volt

Out_LO=

4.00

Out_HI=

20.00

Out_dir
Out_rev

CalOut_n
CalOut_y

Intens_=

234567.89

SAVE

Setp oints fixed at setup
Can change setpoints

Auto matic reset
Manual reset

Anal ogue output propor tional to rate
Anal ogue output propor tional to total

Intr oduces the rate low value
e.g., 0 .00

Intr oduces the rate high value
e.g., 10 0.00

Intr oduces the rate low value
e.g., 0 .00

Intr oduces the rate high value
e.g., 10 0.00

Current (m A) outpu t
Voltage ( V) output

Intr oduces output low va lue
Value, e.g., 4.00 mA

Intr oduces output high value
Value, e.g., 20.00 mA

Direct (propo rtional ) output
Rever sed (inverted) output

Skip output calibration
Calibrate outputs

Intr oduces the disp lay intensity
Demo display for adjus tment

Inst rument is s aving the changes to t he setup and ret urning to
normal ope ration

Toggle Accept

Toggle Accept

Toggle Accept

-

Dec- Inc

-

Dec- Inc

-

Dec- Inc

-

Dec- Inc

Toggle Accept

-

Dec- Inc

-

Dec- Inc

Toggle Accept

Toggle Accept

-

Dec- Inc

Next

Accept

Next

Accept

Next

Accept

Next

Accept

Next

Accept

Next

Accept

Next

Accept

33

Installation

Caution: In order to meet product safety requirements, these units
must only be installed, by qualified staff, in accordance with the
information given in this manual, using the mounting clips and terminal
blocks supplied, and all relevant national electrical wiring and safety
rules must be followed.

Locate the instrument in an area that is free from dust, moisture
and corrosive gases (pollution degree II or better). Do not cover the
ventilation holes at the side of the case.

Power Supply Requirements

PTX800A displays must be used with a suitable mains Power Supply,
ratings are as follows:

Voltage Range Nomin al Voltage Power Frequency
100–132 V AC 110 V AC 6 VA 47-63 Hz
200 –264 V A C 240 V A C 6 VA 47-63 Hz

21.6–26.4 V DC * 24 V DC 6 W (at 24 V DC) -

*Using a DC power supply that provides this voltage will comply with
the instrument’s cULus listing, file number: E256486.

Input connections

The input circuit has programmable trigger levels according to the
‘Input type’ setting.

MUR sensors, 3-wire NPN sensors, 3-wire PNP sensors, NPN

For NA
open collector (O/C) outputs and PNP open collector (O/C) outputs set
the input type to “High Level DC” (HIdC ).

For voltfree contact inputs use ‘Contact closure’ (Con). The minimum

ont

act closure time is 20 mS and the maximum frequency is 10 Hz.

c
For voltage pulses (including TTL/CMOS logic) select a suitable input

type using the trigger/reset voltage table.

34

Input voltages over 45 V DC

If the input voltage is above 45 V DC connect the internal high voltage
select jumper before applying the signal (maximum voltage is
250 V DC).

igital pulse output

D

The basic model PTX800D has a retransmit pulse output, which gives
a single pulse every time the total increases by one unit. The pulse

h is a constant 32 ms and the minimum off time is 32 ms. The

widt
output is an isolated, NPN, open collector transistor type and can
switch a maximum of 50 V DC or a current up to 200 mA.

Reset pulse input

pts a volt-free contact closure, or a shorting link, between pins 7

Acce
and 12. The contact must be closed for at least 100 ms.

Alarm channels one and two (optional)

Alarm channels one and two have SPDT relay contact outputs. The
rated current decreases for inductive loads so using suppressor
capacitors is recommended.

Analogue output (optional)

The analogue output provides you with a current or voltage based
signal that is proportional to the rate or total. For rate outputs, the
average value is the same as the rate, although the instantaneous
value may differ slightly for rapidly changing signals.

35

Connections

For effective protection from electromagnetic noise, all signal cables
must be shielded, or located on conductive trays or in conduits.

p wires to 7 mm from the ends. Use a suitable ferrule for

Stri
multistranded wires (do not solder).

Pin Signal

1 N eutral / –

2 L ive / +

3 S ignal +

4 S ignal –

5 0 V

6 P ulse

7 R eset count Shor t to 12 to res et

8 S ecurity Shor t to 12 for se tup mode

9 P ull Up/Down

10 I

nput – / 0 V

11 I

nput +

12 +12 V DC (out)

13 Normally Closed

14 Common

15 Normally Open

16 Normally Closed

17 Common

18 Normally Open

Power supply

Anal ogue output (op tional)

Pulse output

Inputs

Alar m one
(optional )

Alar m two
(optional )

Input signals

The PTX800D input circuits are rated category II (suitable for
measurements performed on the low voltage installation). They may
safely be floating with respect to local ground (i.e., subject to common

oltages) up to 250 V DC.

mode v
36

PTX800 analogue output board showing output type jumper locations.

Link both pairs
of posts for
voltage outputs

Symbols

The instrument labels use symbols in accordance with IEC61010-1:

- Consult documentation; - Direct Current; - Double

Insulated.

37

NAMUR

sensor

–

PTX800D

10+ 129 11

For NAMUR sensor

nputs.

NPN typ e

3-wire sensor

(O/C out puts)

Sig–

PTX800D

9+ 10

Power (+ve)

Signal

Power ( –ve)

11 12

For 3-w re sensors

w th NPN open

co ector ouputs

PNP type

3-wire sensor

(O/C outputs)

Sig–

PTX800D

9 12+ 10

Power (+ve)

Signal

Power ( –ve)

11

For 3-w re sensors

w th PNP open

co ector outputs

Sensor

PTX800D

9– 12Sig 1110

For externa y powered

NPN open co ector

sensor nputs

Sensor

PTX800D

10+ 12Sig 9 11

For exter na y p owered

PNP open co ector

sensor nputs

Vo tage pulse

source

PTX800D

10- 11+

For vo tage

pu se npu ts.

Volt-free

contacts

PTX800D

ba 10 129 11

For vo t-free

contact nputs.

Input type

Low voltage inputs High voltage inputs

Description

Trigger Reset Trigger Reset

LOAC 50 m -50 m 200 mV -400 mV Low level AC signals

2.5 V -2.5 V 14 V -10 V High level AC signals

3.5 V 0.5 V 20 V -2 V Low level DC signals

6 V 3 V 35 V 10 V High level DC signals

6 V 3 V 35 V 10 V Contact closure

HIAC

LOdC

HIdC

CoN

Input Types

38

• Modifications

Analogue output type

The analogue output type (current/voltage) is set by internal push fit
jumper. To change the output type:

Change the output type push fit jumper:

1. Gently remove the backplate (it is held in place by four lugs).
e the electronics from the housing.

lid

2. S

3. Change the jumper location to the required setting (see diagram

above).

4. Loo

k inside the housing and note that there are connectors that

mate with the display board.

ide the electronics gently back into the case. Carefully moving the

5. Sl

board until the keypad connectors engage with the display board.

lace the backplate.

6. Rep

Change the output type in the software:

1. Power up the instrument and start the setup routine.
le the software version number is flashing, remove the security

2. Whi

link and press PGM.

isplay will show Ao ut_=_y. Press PGM.

3. The d

isplay will show Ao ut=volt or Ao ut=_cur. Select using up

4. The d

or down key.

5. Replace the security link and press PGM.

Change the output range settings:

oll through the setup and change the output type and range

Scr

6.

settings - you will be required to calibrate the outputs.

Calibrate the output:

ali

brate the outputs to the new output range and type.

7. C

39

High/Low voltage input selection

1. Gently remove the backplate (it is held in place by four lugs).
e the electronics from the housing.

2. Slid

3. Change the High/Low voltage jumper to the required setting (see

diagram right).

4. Loo

k inside the housing and note that there are connectors that

mate with the display board.

ide the electronics gently back into the case. Carefully moving the

5. Sl

board until the keypad connectors engage with the display board.

6. Replace the backplate.

Output calibration

General

The PTX800D analogue outputs are calibrated for a specific output
range and type. If you have changed the output range or type you
must follow the procedure given below.

Allow the instrument 15 minutes of powered operation (to reach a
stable temperature) before calibrating the output.

Equipment requirements

• An accurate digital multimeter (accurate to 0.05 mV and ±0.1 μA)

Terminal Connections for output calibration

Calibr ation Stage Signal t ype Terminal

Anal ogue Current Outpu t

Anal ogue Voltage Ou tput

mA ou tput + 3
mA ou tput – 4

V output + 3
V output – 4

40

Procedure

Note: the procedure below shows calibration for the commonly used
4-20 mA f

ormat. If you have set the outputs to any other format, the
unit will prompt you with the output high and low values you have
chosen.

When th e

display shows

Put the ins trument in setup mode and scroll through the main menu

CALOut_n

CAlOut_y

Out_LO_=

4.00

Out_HI_=

20.00

Save

Note: Do not rem ove the power while the save m essage is on dis play.

Action/Description

Pres s ì or Å

Pres s PGM to select output calibration

Connect t he multimeter to meas ure the output level, then pres s PGM

Pres s PGM
Meas ure the out put signal

Adjust the output (u sing the ì o r Å keys) unt il the output is at the valu e shown
When you ar e happy that the output is c orrect, pres s PGM

Pres s PGM

Pres s PGM
Meas ure the out put signal

Adjust the output (u sing the ì o r Å keys) unt il the output is at the valu e shown
When you ar e happy that the output is c orrect, pres s PGM

Cont inue with t he setup sequence.

41

Analogue
Output
Board

Link these
pins for
High input
voltages

Link these
pins for
Normal input
voltages

Display Board

Main Board

96 6 mm

137 00 mm

PANEL THICKNESS Max 18 0mm

48.8 mm

44.7 mm

96.6 mm

60.0 mm

143 5 mm

5.5 mm

15 5 mm

PGM
EN

T

18 0 mm

GASKET

92 0 mm (+0 8 / 0 0 mm)

CUTOUT

45.0 mm (+0.6 / -0.0 mm)

PGM
EN

TOTAL
RATE

AL1

AL2

Front panel is rated IP65 when
correctly Installed in panel

Temperature range: 0-60 °C
Altitude: < 2000 m
Relative humidity: 0-95 %
(non-condensing)

Dimensions

42

43

Weidmüller Interface GmbH & Co. KG
Postfach 3030
32720 Detmold
Klingenbergstraße 16
32758 De
Tel. [phone]
Fax [phone]
[e-mail]
www.

tmold

weidmueller.com 61001050/00/01.08