Pepperl+Fuchs KF DWB-1.D Series User manual

PROCESS AUTOMATION
MANUAL
OVERSPEED/UNDERSPEED
MONITOR
KF**-DWB-(EX)1.D
ISO9001

With regard to the supply of products, the current issue of the following document is applicable:
The general terms of delivery for products and services of the electrical industry, as published
by the central association of the "Elektrotechnik und Elektroindustrie (ZVEI) e.V.",
including the supplementary clause "Extended reservation of title".

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Overspeed/Underspeed Monitor KF**-DWB-(Ex)1.D
Table of Contents
1 Symbols Used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.1 Range of application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.2 Model variants. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.3 Inputs and outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3 Safety Notes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4 Explosion Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
5 Installation and Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
5.1 Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
5.2 Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5.2.1 Connection input (field circuit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5.2.2 Connection output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5.3 Indicating and operating elements of the DWB. . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
6 Parameterization menu overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
7 Editing device data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
7.1 Display mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
7.2 Main menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
7.3 Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
7.4 Input. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
7.4.1 Input: Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
7.4.2 Input: Smoothing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
7.4.3 Input: Pulses per revolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
7.4.4 Input: Contact bounce filter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
7.4.5 Input: Start-up override. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
7.4.6 Activating start-up override . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

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Table of Contents
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7.5 Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
7.5.1 Switching behavior of the relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
7.5.2 Output: Min/Max (switch direction) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
7.5.3 Output: Trip point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
7.5.4 Output: Hysteresis. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
7.5.5 Output: Mode of operating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
7.5.6 Output: Alarm freeze (restart inhibit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
7.6 Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
7.6.1 Entering and activating password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
7.6.2 Selecting display language . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

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Symbols Used
1 Symbols Used
2 Overview
2.1 Range of application
The K-System devices from Pepperl+Fuchs are used for transmitting signals between field devices
and a process control system/control system.
The devices marked with "Ex" in the type designation are suitable for the connection of field devices
used in potentially explosive atmospheres. Safe field circuits for these devices are intrinsically safe
and are galvanically isolated from non-intrinsically safe circuits. The devices thus establish an
electromagnetic separation between the potentially explosive atmospheres and the safe areas in a
system.
Devices without Ex-identification can be used to transmit signals between field devices and the
process control system/control unit.
This symbol warns of possible danger.
Failure to heed this warning may result in personal injury or death, or property damage,
including destruction.
This symbol warns the user of a possible fault.
Failure to heed this warning can lead to total failure of the device and any other
connected equipment.
This symbol draws attention to important information.
Warning
Attention
Note

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Overview
4
Typical applications for the Overspeed/Underspeed
Monitors KF**-DWB-(Ex)1.D of the K-System
(abbreviated DWB) are limit-value monitoring during
flow and rotational-speed measurements (Max alarm
and Min alarm).
The Overspeed/Underspeed Monitors are
parameterized using an integrated control panel.
More information (for example, certificates and data
sheets for the DWB and the operating manual for the
K-System) can be found on our webpage
www.pepperl-fuchs.com (enter *DWB* in the product
search).
2.2 Model variants
The following variants of the Overspeed/Underspeed Monitor are available:
.D = with keypad
Ex = for connection of field devices in areas exposed to danger of
explosion
without identifier letters = for connection of field devices in the
safety area
D2 = with a power supply of 24 V DC
A5 = with a power supply of 115 V AC
A6 = with a power supply of 230 V AC
KF**-DWB-**1.D

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Overview
2.3 Inputs and outputs
A K-System DWB from Pepperl+Fuchs has
• an input for connecting a field device.
−With KF**-DWB-Ex1.D, this input is intrinsically safe
(blue terminal block). You may connect either a
NAMUR sensor or a mechanical contact.
−With KF**-DWB-1.D, the input is not intrinsically safe
(green terminal block). You may connect a NAMUR
sensor, a mechanical contact or a 3-conductor
sensor. A DWB also has
•tworelay outputs for limit-value display. These are for
−Max alarm and for
−Min alarm and
• a non-intrinsically safe input for the
−remote activation of the start-up override and the
−resetting of the restart inhibition (alarm freeze).
Field device input
Outputs, start-up override, power supply

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Safety Notes
6
3 Safety Notes
The Overspeed/Underspeed Monitor KF**-DWB-(Ex)1.D must only be operated by
trained personnel in accordance with this handbook.
The protection of operating personnel and of the system is only ensured if the devices
are used in accordance with their intended purpose. Any other type of operation than
that described in this manual places the safety and functionality of the devices and
systems connected to them in question.
The devices may only be installed, connected, and adjusted by electrical professionals
outside the hazardous area.
If faults cannot be eliminated, the devices must be taken out of operation and protected
from being placed in service again inadvertently. Devices must only be repaired directly
by the manufacturer Pepperl+Fuchs. Tampering with or making changes to the devices
is dangerous and therefore not permitted. They render the warranty void.
The responsibility for the adherence to local safety standards lies with the operator.
Warning
Warning
Warning
Warning
Note

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Explosion Protection
4 Explosion Protection
For primary explosion protection, that is, for measures to be taken to
prevent or hinder the development of a dangerous explosive
atmosphere, please observe the guideline 1999/92/EC (ATEX 137) or
the corresponding national guidelines.
For secondary explosion protection, that is, for measures to hinder the
ignition of a surrounding explosive atmosphere by electrical devices,
Pepperl+Fuchs will gladly make the "Explosion Protection Manual"
available to you for a nominal free.
Note in particular DIN EN 60079-10, DIN EN 60079-14, DIN EN 50014
and DIN EN 50020, or the corresponding national guidelines.
Pepperl+Fuchs also offers a seminar on the topic of explosion
protection.
5 Installation and Connection
5.1 Installation
The devices of the K-system from Pepperl+Fuchs and thus also the
Overspeed/Underspeed Monitor KF**-DWB-(Ex)1.D can be mounted on a
35 mm standard rail corresponding to DIN EN 60175. The devices must be
snapped onto the rail vertically, and never slanted or tipped to the side.
Additional possibilities for mounting, e. g. using the Power Rail, can be found
in the data sheets and in the K-System operating manual on our webpage
www.pepperl-fuchs.com (enter *DWB* in the product search).
The Overspeed/Underspeed Monitor KF**-DWB-(Ex)1.D is constructed in protection
degree IP20 and must therefore be protected from undesirable ambient conditions
(water, small foreign objects).
PROCESS AUTOMATION
MANUAL
EXPLOSION PROTECTION
Intrinsic Safety
Explosion Protection
Attention

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Installation and Connection
8
Dimensions of
KF**-DWB-(Ex)1.D in mm
5.2 Connection
The removable terminals of the KF-series considerably simplify
the connection and the switch cabinet assembly. They make it
possible to replace devices quickly and without error if a
customer service becomes necessary.
Terminals are equipped with screws, are self-opening, have a
large connection area for a wire cross-section up to 2.5 mm²
and coded plugs, making it impossible to mix them up.
40 115
111 118

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Installation and Connection
5.2.1 Connection input (field circuit)
The intrinsically safe field circuit is connected at the blue terminals 1 ... 3 of the KF**-DWB-Ex1.D.
These may be guided into the potentially explosive areas with connector cables in accordance with
DIN EN 60079-14. You may connect:
• a sensor in accordance with DIN EN 60947-5-6 (NAMUR)
• a mechanical contact
• a mechanical contact with shunt resistor
• a mechanical contact with series and shunt resistors
The non-intrinsically safe field circuit is connected at the green terminals 1 ... 3 of the KF**-DWB-1.D.
In addition to the possibilities listed above, you may also connect:
• a 3-wire sensor
Terminals 4 ... 6, 7 ... 9 and 19 ... 21 do not exist on the DWB.
KFD2-DWB-Ex1.D
3-
1+
Zone 0, 1, 2
Div. 1, 2 Power Rail
24 V DCERR
10 kΩ
10 kΩ
400 Ω ≤ R ≤2 kΩ

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Installation and Connection
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5.2.2 Connection output
The remaining green terminals serve the following functions:
• Terminals 10 ... 12: relay 1
• Terminals 13 and 14: input start-up override (15 free)
• Terminals 16 ... 18: relay 2
• Terminals 23 and 24: power supply (22 free)
More information on connecting the DWB (e. g. using the Power Rail) can be found in the data sheets
and the K-System operating manual on our webpage www.pepperl-fuchs.com (enter *DWB* in the
product search).
KFD2-DWB-Ex1.D
Zone 2
Div. 2
10
11
12
16
17
18
I
II
24 V DC
23+
24-
Power Rail
24 V DCERR
13+
14-

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Installation and Connection
5.3 Indicating and operating elements of the DWB
Located on the front side of the DWB are:
• LED IN/CHK 1 (yellow/red) for displaying the input signal (flashes
yellow in time), an input error (flashes red) and a device error
(permanent red)
• LED PWR (green) for displaying the supply voltage
• LED OUT 1 (yellow) to indicate relay 1 active
• LED OUT 2 (yellow) to indicate relay 2 active
• a display for measuring-value and error indication and for
parameterization mode
• four keys for setting the parameters of the DWB:
(Up) (Down) ESC (Escape) OK

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Parameterization menu overview
12
6 Parameterization menu overview
The following figure should serve as a
reference for quick orientation, particularly
when you are already familiar with how to
parameterize the DWB. A detailed
description of the operating steps can be
found in chapter 7.
OK
Esc
OK
Esc
Esc
OK
Esc
+
OK
Esc
OK
Esc
OK
Esc
OK
Esc
Input menu
Error menu
Menutrip value
Main menu
Display of
measured value
Output menu
Service menu
Error
SC
LB
Unit
Inpu
Smoothing
Pulses per
revolution
Contact
bounce filter
Min/Max
t
Trip point
Hysteresis
Mode of
operation
Start-up
override
Relay 2
Relay 1
Output
Alarm freeze
Servce
Language
Password
i

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Editing device data: Display mode
7 Editing device data
7.1 Display mode
In normal operation the current measuring value is shown on the display in the selected unit. To select
the unit see chapter 7.3.
If the restart inhibit (see chapter 7.5.6) has been triggered and the device is still in normal operation,
Alarm freeze is shown in the second line of the display in addition to the current measuring value.
In the event of an error, an error message is displayed (if appropriately parameterized) until corrected:
•Err device for a device error
•Err SC for a short circuit in the sensor line
•Err LB for an interruption in the sensor line
To select the error messages see chapter 7.4.1. The relays always switch to the de-energized state
in the event of an error.

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Editing device data: Main menu
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7.2 Main menu
To change to the Main menu of the parameterization
mode from the display mode, simultaneously press the
Esc and OK buttons for approx. 1 second.
You can prevent unauthorized persons from making
changes in the parameterization mode by means of a
password (see chapter 7.6.1). While it is possible in this
case to view the various settings in the parameterization
mode before entering a password, no changes can be
made. The first time an attempt is made to change a
setting, the device automatically prompts the user for a
password. The password must be entered once each
time you change from display mode to parameterization
mode. The entry is described in chapter 7.6.1.
The Main menu consists of 4 menu items (Unit, Input,
Output, Service). You can switch between them using
the ▲and ▼buttons. With the Esc button, you can return
at any time from the Main menu to the display mode.
If no button is pressed for 10 minutes while in the
parameterization mode, the device automatically returns
to the display mode.
OK
Esc
Esc
2000
Hz
Err
LB
+
Main menu
Display of
measured value
e.g.:
Unit
Input
Output
Servcei

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Editing device data: Unit
7.3 Unit
From the menu option Unit of the Main menu, you can
use the OK button to access the selection for the unit of
the measuring value display (Hz or rpm = rotations per
minute).
How to change the setting:
• The current selection is displayed. Use the ▲and ▼
buttons to alternate between the possible settings. If
neither the ▲nor ▼button is pressed, the new set
value flashes.
• If you press the Esc button, the old value is
redisplayed.
• If you press the OK button, the displayed value is
saved and then displayed without flashing.
• If the value does not flash, you can use the Esc
button to return to the next-higher menu.
rpm
Hz
OK = save
Esc
OK
Esc
Unit

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Editing device data: Input
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7.4 Input
From the menu option Input of the Main menu, you can
use the OK button to switch to the Input menu.
This consists of 4 or 5 menu options (Error, Smoothing,
Pulses per revolution, Contact bounce filter and Start-up
override). You can switch between these options with the
▲and ▼buttons.
The menu option Pulses per revolution only appears
when rpm has been selected as the unit for the
measuring value display (see chapter 7.3).
With the Esc button, you can return at any time from the
Input menu to the Main menu.
OK
Esc
Input menu
Error
Smoothing
Pulses per
revolution
Contact
bounce filter
Start-up
override
Input

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Editing device data: Input
7.4.1 Input: Error
From the menu option Error of the Input menu, you can
use the OK button to switch to the Error menu.
This menu consists of 2 menu options (LB = line break
and SC = short circuit). You can switch between them
using the ▲and ▼buttons.
With the Esc button, you can return at any time from the
Error menu to the Input menu.
From the menu option LB of the Error menu, you can use
the OK button to access the line-breakage monitoring
selection (ON or OFF).
If a mechanical contact is connected as a sensor, an
appropriate shunt resistor must be present for the
line-breakage monitoring.
The selection of short-circuit monitoring is performed
analogously.
If a mechanical contact is connected as a sensor, an
appropriate series resistor must be present for the
short-circuit monitoring.
OK
Esc
Error menu
Error
SC
LB
OK = save
Esc
OK
Esc
LB
ON
OFF

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Editing device data: Input
18
7.4.2 Input: Smoothing
From the menu option Smoothing of the Input menu, you
can use the OK button to access the selection for the
smoothing value.
With strongly fluctuating measuring values, you can use
smoothing to influence how fast a relay reacts to a
change in input value. You can set values between 0 (no
smoothing) and 255 (maximum smoothing).
How to change the setting:
• The set value is displayed. This value can be changed
using the ▲and ▼buttons. When you quickly press
either the ▲or ▼button, the value changes
incrementally. If either the ▲or ▼button is pressed for
a longer period of time, the setting "rolls" to higher or
lower values, respectively. If neither the ▲nor ▼
button is pressed, the new set value flashes.
• If you press the Esc button, the old value is
redisplayed.
• If you press the OK button, the displayed value is
saved and then displayed without flashing.
• If the value does not flash, you can use the Esc button
to return to the next-higher menu.
OK = save
Esc
0 1 5 0
OK
Esc
Smoothing