WIKA EGS80 Series User manual

Operating instructions
EN
Digital limit switch, model EGS80
Digital limit switch, model EGS80

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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Table of contents
Trip Amplifier EGS80X002001
Table of contents
1 Symbols Used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
2 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
2.1 Range of Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3 Safety Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
4 Installation and Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
4.1 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4.2 Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4.2.1 Connection Input (Field Circuit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.2.2 Connection Output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.3 Field Device Communication via HART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4.4 Front Side. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5 Display Modes and Fault Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
6 Editing Device Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
6.1 Parameterization Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
6.1.1 Invocation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
6.1.2 Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6.1.3 Navigation Method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.1.4 Lowest Menu Level: Select Values, Enter Numeric Values . . . . . . . . . . . . . . . . . . . . . . . 15
6.2 Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6.3 Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
6.3.1 Line Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
6.3.2 Zero Point and Conversion Factor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
6.3.3 Linerization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6.3.4 Smoothing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

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Table of contents
6.4 Relays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
6.4.1 Operating Behaviour. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
6.4.2 Trip and Hysteresis. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
6.4.3 Alarm Freeze. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
6.4.4 Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
6.5 Current Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
6.5.1 Characteristic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
6.5.2 Fault Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
6.5.3 Start Value and End Value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
6.6 Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
6.7 Default Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

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Symbols Used
1SymbolsUsed
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
2Overview
2.1 Range of Application
The devices are used for transmitting signals between field devices and a process control system/control system.
Transmitters are measuring units that provide an output signal consisting of a unit current signal
(4 mA to 20 mA). A transmitter power supply provides a transmitter with power and processes the
current signal.
The devices converts a fully parameterizable
partition of input signal in a proportional output
current (4 mA to 20 mA).
This output signal will be transferred to
indicators or to analogue inputs on the process
control system/control system, for example.
Both relay outputs of the device can monitor
two fully parameterizable trip values of the input
signal.
More information can be found on certificates and
datasheets.

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Safety Instructions
3 Safety Instructions
The device may only be operated by trained professionals in a manner corresponding to
this operating manual.
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. 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
This text is adapted to the new edition of the Ex- protection manual, if this is available

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Installation and Connection
4 Installation and Connection
4.1 Installation
The devices can be mounted on a 35 mm DIN mounting rail according to
DIN EN 60715. The devices must be snapped onto the rail vertically, and
never slanted or tipped to the side.
Dimensions of the device in mm
The device is constructed in protection degree IP20 and must therefore be protected
from undesirable ambient conditions (water, small foreign objects).
Attention
40 mm (1.6") 115 mm (4.5'')
46 mm (1.82'')58 mm (2.28'')
119 mm (4.7'')
104 mm (4.1'')

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Installation and Connection
4.2 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 fault 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.

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Installation and Connection
4.2.1 Connection Input (Field Circuit)
The non-intrinsically safe field circuit is connected to the terminals 1 to 3.
In both cases you can connect the following field devices:
1. a 2-wire transmitter
2. an active current source
24 V DC
3
1+
2-
mA
mA
1. 2.

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Installation and Connection
4.2.2 Connection Output
The control circuit and the power supply are connected toterminals 7 to 24 on the device.
The terminals have the following functions:
• Terminals 7/8: current output (terminal 9 not used)
• Terminals 10 to 12: relay 1
• Terminals 16 to 18: relay 2
• Terminals 23/24: (terminal 22 not used) AC/DC power supply
Terminals 4 to 6, 13 to 15 and 19 to 21 do not exist.
16
17
18
10
11
12 I
II
III
7-
8+
AC/DC
23+
24-
24 V DC
mA

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Installation and Connection
4.3 Field Device Communication via HART
In order to set the parameters of the connected HART field device, you will require
a HART communicator which you can connect to the field cables. Transmitting the HART signal
via the current output of the device is not possible.
4.4 Front Side
The following indicating and operating elements are located on the front of
the device:
• LED CHK (red) to indicate a device fault
• LED PWR (green) to indicate the presence of the supply voltage
• LED OUT 1 (yellow) to indicate that relay 1 is active
• LED OUT 2 (yellow) to indicate that relay 2 is active
• Display for indication of the measured values, fault messages and
parameterization modi
• Four keys for setting the parameters of the device:
(Up) (Down) ESC (Escape) OK
• Interface for connecting a computer for parameterization and
diagnostics of the device with the parameterization software, using
aadapter
10 11 12
16 17 18
456
22 23 24
ESC
OK
789
13 14 15
123
19 20 21
RS232
CH
IN /
K
OUT
1PWR
21

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Display Modes and Fault Messages
5 Display Modes and Fault Messages
In normal operation, the current measured value is indicated in the selected unit.
For information on selecting the unit, see section 6.2.
If the Alarm freeze (see section 6.4.3) is triggered but the device continues operating normally,
a corresponding message appears in the second line of the display.
If a fault occurs, one of the following messages is displayed until the fault is rectified
(when parameterized):
•Err Mem for device fault,
•Err LB for lead breakage,
•Err SC for short circuit
For the selection of fault messages see section 6.3.1.
If switching the device on/off and checking the cables does not rectify the fault, please contact
Pepperl+Fuchs or the field device manufacturer.
The relays de-energizes when a fault occurs.
For information on the behaviour of the current output in the event of fault, see section 6.5.2.
The display of the device is updated at regular intervals. This can causes a short
flickering of the display. This flickering isn't a defect of the display.
Note

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Editing Device Data: Parameterization Mode
6EditingDeviceData
6.1 Parameterization Mode
6.1.1 Invocation
You can return to display mode from any point in the menu in parameterization mode by pressing
the ESC key (possibly multiple times). If you do not press any key for 10 minutes in parameterization
mode, the device automatically switches back into display mode.
A change in device data will change the operation of the device!
Before entering new data into the device, you should ascertain that no danger to the
installation will result.
In this manual, the parameterization of the device via the control panel is described.
Parameterization by means of a PC is more convenient.
Main menu parameterization mode
Display mode OK + ESC (simultaneously for 1 s) Unit (6.2)
ESC
Input (6.3)
Output (6.4 and 6.5)
Service (6.6)
Warning
Note

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Editing Device Data: Parameterization Mode
Trip Amplifier EGS80X002001
Editing Device Data: Parameterization Mode
6.1.2 Password
You can protect the parameterization from unauthorized changes by means of a password
(see section 6.6; at the delivery of the device, the password is inactive).
If the password protection is active, you can view the different settings in the parameterization mode,
but not change them before entering the password. On the first attempt to make a change, the device
immediately prompts for a password.
The password must be entered for each transition from display mode to parameterization mode,
once each time.
The password cannot be changed. It is 1234.
The password is entered as follows:
* If you press the or key, the value changes step by step. If you hold the or key, the setting
"rolls" to higher or lower values.
Change
attempt
automatic switch to password entry value 0, flashing
parameters still protected ESC
, *: ESC 
OK, wrong value 
new value, flashing
parameters released OK, value 1234

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Editing Device Data: Parameterization Mode
6.1.3 Navigation Method
The following diagram shows the navigation method in parameterization mode using
the , , OK and ESC keys:
Rel1 OK Min/Max
  ESC

Tri p
  ESC

Hysteresis
  ESC

Mode OK Active
  ESC   ESC

Alarm freeze
  ESC

Delay
  ESC

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Editing Device Data: Parameterization Mode
Trip Amplifier EGS80X002001
Editing Device Data: Parameterization Mode
6.1.4 Lowest Menu Level: Select Values, Enter Numeric Values
On the lowest level of the menu, you can either select one of several possible values, or enter a number
for the individual parameters.
Proceed as follows:
When entering numeric values, please note:
• If you press the or keys, the value changes step by step.
• If you hold the or keys, the value "rolls" to higher or lower values.
• The algebraic sign changes automatically.
• The decimal point is moved automatically.
Lowest menu level
Parameter OK Current value, flashing
  ESC
, : ESC 
New value, flashing
OK 
New value, not flashing, saved
  ESC

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Editing Device Data: Unit
6.2 Unit
The following diagram shows the unit menu. Items from the lowest menu level are outlined in bold.
The device measures in mA. Using the parameters zero point and conversion factor (section 6.3.2)
it converts the measured value into the selected units. These units are used for the display of the
measured values and for all corresponding settings in the parameterization mode.
Unit —— °F Continued from the left
°C m
bar m³/h
Pa l/h
Nl/min
tm³
kg l
km/h %
m/s mA
Continued right

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Editing Device Data: Input
Trip Amplifier EGS80X002001
Editing Device Data: Input
6.3 Input
The following diagram shows the input parameters menu. Items from the lowest menu level are outlined
in bold.
The menu items Zero point and Conversion factor will not be shown if the unit mA is selected
(section 6.2).
Input —— Line monitor (6.3.1) —— LB —— LB On
LB Off
SC —— SC On
SC Off
Zero point (6.3.2) —— -15 mA to 15 mA
Conversion factor (6.3.2) —— 0.100 to 5000
Linearization (6.3.3) —— Linearization On
Linearization Off
Smoothing (6.3.4) —— 0 s to 255 s

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Editing Device Data: Input
6.3.1 Line Monitor
• If you select On for LB, an input current < 0.2 mA will be registered as a lead break (section 5).
• If you select On for SC, an input current > 22 mA will be registered as a short circuit (section 5).
If you wish to process the 0.2 mA input values as measured values, you must deselect the lead
breakage detection (Off LB). If not, an fault will be signalled within the measuring range.
6.3.2 Zero Point and Conversion Factor
The device measures in mA. If you have selected different units (section 6.2), the device calculates
the measured value in the selected units using the parameters Zero point and Conversion factor.
The parameters for your application must be determined according to the following formula:
An arbitrary value between -15 mA and +15 mA can be set as the Zero point, and values between
0.100 and 5000 as the Conversion factor.
The following includes examples where the formulas are applied.
Measured value in
the selected units = (Original measured value [mA] – Zero point) x Conversion factor