Fema I4 Series User manual

www.fema.es
SERIES I4 · Model I4F
USER’S MANUAL
ISOLATED
SIGNAL
CONVERTER
Section INDUSTRIAL
5799r00
INDUSTRIAL
Frequency
Hz
RPM Flow
Impulses

FEMA · MANUFACTURING FOR INDUSTRIAL AUTOMATION
2
SIGNAL CONVERTER I4F
Signalconverterforimpulsesandfrequencysignals,isolated,forindustrialapplications
Isolated signal converter for frequency signals. Congurable to work with NPN, PNP, pick-up, Namur, mechanical contact, reed contact and other
types of sensors. Dedicated input to measure frequency from AC voltage signals up to 600 Vac. Accepts a wide range of frequency ranges, from
1 Hertz up to 1 MHertz, with minimum workable signal of 100 milliHertz and resolution of 1 milliHertz.
Congurable output in 4/20 mA (active or passive) or 0/10 Vdc. Universal power supply from 18 to 265 Vac/dc. 3 way isolation between input, output
and power circuits. Circuit isolation prevents ground loops and transient propagation, protecting remote equipment and signal integrity.
Predened conguration codes available for fast and easy conguration. Advanced conguration menu available to customize input and output signal
ranges to specic values required, and different sensor parameters. Conguration through front push-button keypad. Front information displays for
conguration and system information (input signal value, output signal
value, congured label, signal percentage and process value).
Built-in ‘force’ functions to manually generate low and high output
signals, to validate remote instrumentation during installation. ‘SOS’
mode to help on critical maintenance and repairs. Congurable power
frequency rejection lter. ‘Password’ function to block non-authorized
access to ‘conguration menu’.
Designed for industrial use, with potential integration into a wide range of
applications, reduced cost, excellent quality and available customization.
1. How to order
1. How to order . . . . . . . . . . . . . . . . . . . . . . . . .2
2. Material included . . . . . . . . . . . . . . . . . . . . . . 2
3. Additional information. . . . . . . . . . . . . . . . . . . . 2
4. Installation and start-up . . . . . . . . . . . . . . . . . . . 3
5. Typical applications . . . . . . . . . . . . . . . . . . . . . 3
6. SOS mode . . . . . . . . . . . . . . . . . . . . . . . . . . 3
7. Messages . . . . . . . . . . . . . . . . . . . . . . . . . . 3
8. Predened conguration codes . . . . . . . . . . . . . . .4
9. Predened sensors . . . . . . . . . . . . . . . . . . . . . 4
10. Reading channels. . . . . . . . . . . . . . . . . . . . . . 4
11. Connections and dimensions (mm (inch)) . . . . . . . . .5
12. How to operate the instrument . . . . . . . . . . . . . . .6
12.1 Conguration system 6
12.2 ‘Normal mode’ of operation 6
12.3 How to operate the ‘Conguration menu’ 6
12.4 How to operate the ‘Force’ menu 7
12.5 How to activate the ‘Messages’ function 7
12.6 Fast and advanced congurations 7
13. Input signals . . . . . . . . . . . . . . . . . . . . . . . . 8
13.1 Low voltage frequency signals 8
13.2 Vac frequency signals 8
14. Technical specications . . . . . . . . . . . . . . . . . .9
15. Frequency calculation modes . . . . . . . . . . . . . . . 9
16. Conguration menu. . . . . . . . . . . . . . . . . . . . 10
16.1 Function codes and sensor 10
16.2 Sensor conguration 10
16.3 Input range 11
16.4 Output range 12
16.5 Advanced scaling 12
16.6 Display information 13
16.7 Key ‘UP’ (‘force’ menu) 14
16.8 Key ‘LE’ (‘messages’ function) 14
16.9 ‘Tools’ menu 14
17. Full conguration menu. . . . . . . . . . . . . . . . . . 16
18. Factory default parameters. . . . . . . . . . . . . . . . 18
19. Error codes and messages . . . . . . . . . . . . . . . . 18
20. Precautions on installation. . . . . . . . . . . . . . . . 19
21. Warranty . . . . . . . . . . . . . . . . . . . . . . . . . 19
22. CE declaration of conformity . . . . . . . . . . . . . . . 19
INDEX
USER’S MANUAL
The instrument is provided with the following elements:
• 1 x instrument I4F
• 4 x plug-in screw terminals
• 1 x quick installation guide
2. Material included
User’s Manual www.fema.es/docs/5799_I4F_manual_en.pdf
Datasheet www.fema.es/docs/5801_I4F_datasheet_en.pdf
Quick installation guide www.fema.es/docs/5803_I4F_installation_en.pdf
CE declaration www.fema.es/docs/5642_CE-Declaration_I4_en.pdf
Warranty www.fema.es/docs/4153_Warranty1_en.pdf
Web www.fema.es/Series_I4
3. Additional information
When the marks ‘Attention’ or ‘Risk of electrical shock’
appear, read the documentation for information about the
nature of the risk.
Reference Description
I4F Signal converter for frequency signals

SERIES I4 · Model I4F
Section INDUSTRIAL . ISOLATED SIGNAL CONVERTERS
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If this is the rst time you are conguring the instrument, below
are the steps to follow during a rst installation. Read all the
manual sections in order to have a full and clear view of the
characteristics of the instrument. Do not forget to read the installation
precautions at section 20.
1. Install the instrument at the DIN rail
2. Read how to operate the instrument (see section 12)
3.
Connect the input, the output and the power terminals (see section 11).
4. Congure the sensor
• choose one of the predened sensors (see section 9)
• congure the sensor at the instrument (see section 16.1)
5. Congure the input and output signals
• choose a predened conguration code (see section 8)
• introduce the code at the instrument (see section 16.1)
6. If
needed, customize the input and output signal ranges (see section 16.5)
7. If needed, congure the display reading (see section 16.6), the key ‘UP’
(5) ‘force’ menu (see section 16.7), and the key ‘LE’ (3) ‘messages’ function
(see section 16.8),
8. If needed, block access to the ‘conguration menu’ (see section 16.9)
4. Installation and start-up
To measure frequency signals from low voltage sensors such as NPN,
PNP, Namur, pick-up and similar. To measure frequency signals from
ow meters. To measure frequency signals from AC power networks up
to 600 Vac. Signal acquisition, linearization and transmission to remote
acquisition devices. Isolation between circuits provided. Ranges can be
scaled to the desired range.
5. Typical applications
The instrument includes a congurable ‘messages’ function that provides
advanced system information on the display, available to the operator
with a single click at the front key ‘LE’ (3).
This information is helpful during start-up, installation, system
verication, routine maintenance and troubleshooting, as messages and
values provide information on the actual input and output signal value,
actual percentage of the input signal compared to the full scale and
scaled process values.
This information is available at any time, and is displayed sequentially
when requested. Access to this information reduces maintenance
time, improves time invested in failure location, and helps for an easy
resolution of the problem.
Additionally, each instrument can be assigned a custom label code of up
to 8 characters (see Table 1), that can be displayed at the front display
or at the messages sequence, making system identication of each
instrument an easy task.
To congure the ‘messages’ function, see section 16.8.
The instrument includes a congurable ‘SOS mode’ function that provides
a way to manually congure a xed output signal. This output signal
remains xed, independent of the input signal value or sensor state.
This function allows to perform urgent maintenance or repair tasks at the
input section of the system, for example replacing sensors, shunts, or
deactivating power lines, while the instrument still provides a controlled
signal that allows for the process to continue its activity, under human
surveillance. When the maintenance or repair task has been performed,
the instrument can be taken back to the standard working mode, where
the output signal is proportional to the input.
When manually activated, the ‘SOS mode’ generates the output signal
congured, and the front display remains ashing with the message
‘SoS’. All other systems are disabled, which means that :
• no error messages will be shown on display
• no key ‘UP’ (5) ‘fast access’ menu is accessible
• no key ‘LE’ (3) ‘messages’ function is accessible
• no ‘Eco’ mode activates
Only key ‘SQ’ (<) is accessible, to access the ‘conguration menu’
(eventually this access can be password locked) in order to deactivate
the ‘SOS mode’. Deactivation of ‘SOS mode’ must be performed manually
by conguring the function to ‘oFF’.
To congure the ‘SOS mode’ function, see section 16.9.
6. SOS mode
Table 1 | Available label codes (‘Label’ parameter)
Letters Numbers Special
An 0 -
bo 1 _
cP 2 .
d q 3 (blank)
E r 4
FS 5
G t 6
hu 7
I V 8
J W 9
KX
L Y
M Z
7. Messages
Labeling examples (‘Label’ parameter): for an application with multiple
engine control, where RPM is being measured for three engines, and
converted to 4/20 mA for retransmission to PLC or SCADA. Three I4F
converters are being used, to measure 0/1000 Hz. Each I4F can be
congured the following label for easy identication :
• Label for engine 1 frequency measurement : Eng1.hZ
• Label for engine 2 frequency measurement : Eng2.hZ
• Label for engine 3 frequency measurement : Eng3.hZ

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Table 2 | Predened conguration codes - Input / Output
Input Signal
Range
Output 4/20 mA
Code
Output 0/10 Vdc
Code
0/1 Hz 010 110
0/2 Hz 011 111
0/4 Hz 012 112
0/6 Hz 013 113
0/8 Hz 014 114
0/10 Hz 015 115
0/20 Hz 016 116
0/40 Hz 017 117
0/60 Hz 018 118
0/80 Hz 019 119
0/100 Hz 020 120
0/200 Hz 021 121
0/400 Hz 022 122
0/600 Hz 023 123
0/800 Hz 024 124
0/1 KHz 025 125
0/2 KHz 026 126
0/4 KHz 027 127
0/6 KHz 028 128
0/8 KHz 029 129
0/10 KHz 030 130
0/20 KHz 031 131
0/40 KHz 032 132
0/60 KHz 033 133
0/80 KHz 034 134
0/100 KHz 035 135
0/1 MHz 036 136
Reserved 037 to 099 137 to 199
(End of list) ‘---’ (see notes below)
(Custom selection) ‘uSEr’ (see notes below)
8. Predened conguration codes
Select the desired code for your application, and check the following
sections for more information:
• for information on how to activate a code, see section 16.1
• to customize the input and output signals, see section 16.5
Notes
• Predened conguration codes do no affect the sensor conguration.
• Code ‘uSEr’ indicates that a user custom conguration is active, and it does not
match any of the listed codes This code is non-selectable, for information only.
Example: select code ‘025’ for 0/100 Hz=4/20 mA, the instrument reads code ‘025’.
Later, congure the input to 0/950 Hz=4/20 mA, this does not match a listed code,
and the instrument reads ‘uSEr’. Or change the output to 0/100 Hz=1/5 Vdc, this
does not match a listed code, and the instrument reads ‘uSEr’.
• Code ‘---’ identies the end of the list, it follows code ‘199’ and the list
continues with code ‘010’. Select ‘---’ exits the ‘conguration menu’ without
applying changes.
Table 3 | Predened sensors and associated conguration
Sensor
Pull
resistors
Gain Trigger
level
Anti
rebound
Vexc Reading
channel
Max.
Frequency
NPN pull-up x1 25 0 mS +15 V B100 KHz
PNP
pull-down x1 15 0 mS +15 V B100 KHz
Mechanical pull-up x1 25 100 mS +15 V B500 Hz
Reed pull-up x1 25 100 mS +15 V B500 Hz
Pick-up none x100 15 0 mS +15 V A50 KHz
Namur
pull-down x1 15 0 mS +8.2 V B1 MHz
TTL none x1 15 0 mS +5 V B1 MHz
Vac none x1 15 0 mS Off A 1 KHz
9. Predened sensors
Select the desired sensor for your application and check the following
sections for more information:
• for information on how to select a predened sensor, see section 16.1
• to customize the sensor conguration, see section 16.2
Reading channels ‘A’ and ‘B’ have different frequency bandwidths
and different detection levels. Each ‘Predened sensor’ has a channel,
assigned by default, although the channel can also be manually
congured (see section 16.2). Below are the characteristics of each
channel.
Channel ‘A’
• has a ‘zero crossing’ type of detection
• has a bandwidth limit of 80 KHz (with gain ‘x1’) and 30 KHz (with gain
‘x100’).
Maximum frequencies for each type of sensor are listed at ‘Table 3’.
• has a congurable gain of ‘x1’ or ‘x100’, available to signals connected
at terminals ‘1,2,3’. Use the ‘x100’ gain to to work with pick-up signals
with at least 10 mVpp.
Channel ‘B’
• has signal detection levels at approximately ‘<1V’ and ‘>2V’, which
provides a higher noise immunity when compared to channel ‘A’.
• has a bandwidth limit of 1 MHz.
• is the default channel for all sensors, except Vac and pick-up.
10. Reading channels

SERIES I4 · Model I4F
Section INDUSTRIAL . ISOLATED SIGNAL CONVERTERS
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11. Connections and dimensions (mm (inch))
Table 4 | INPUT signal connections
INPUT
signal
Input terminals
123456
Vac
(<600 Vac) ~Vac ~Vac
Vac
(<60 Vac) ~Vac ~Vac
Npn
(2 wires) common signal
Pnp
(2 wires) signal Vexc
Npn, Pnp
(3 wires) common signal Vexc
Pick-up common signal
Namur signal Vexc
Mechanical contact common signal
Reed contact common signal
Others common signal Vexc
Table 5 | OUTPUT signal connections
OUTPUT
signal
Output terminals Connections
789
4/20 mA
active output
mA-
(in)
mA+
(out)
789
mA+
mA-
4/20 mA
passive output*
(*external loop
power needed)
mA+
(out)
mA-
(in)
789
mA+
mA-
0/10 Vdc common +Vdc
789
common
+Vdc
fuse
Vexc
signal (<30 Vdc)
common*
POWER (ABC)
18 to 265 Vac/dc isolated
OUTPUT SIGNAL (789)
Vac (<60 Vac)
common (0 Vdc or passive mA current out)
signal 4/20 mA (mA current in)
signal 0/10 Vdc (or active mA current out)
Standard (35 mm) DIN
rail mount
1 2 3
106 mm
(4.17’’)
108 mm
(4.25’’)
INPUT SIGNAL (123 456)
~ +
~-
A B C
4 5 6
7 8 9
22.5 mm
(0.89’’)
Vac (neutral)*
Vac (<600 Vac)
see ‘Table 4’
see ‘Table 5’
Fuse - This instrument does not
include internal protection fuse.
According to security regulation
EN 61010-1, add a protection fuse to
the power line to act as a disconnection
element, easily accessible to the operator
and identied as a protection device. Use
time-lag fuse, with value :
• 250 mA for voltages > 50 Vac/dc
• 400 mA for voltages < 50 Vac/dc
Terminal 4 and terminal 1 are internally connected. Connecting
dangerous voltages to terminal 4 makes terminal 1 a terminal
with dangerous voltage.
*(internally connected to terminal 1) *(internally connected to terminal 4)

FEMA · MANUFACTURING FOR INDUSTRIAL AUTOMATION
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12. How to operate the instrument
The instrument is fully congurable from the 3 push button keypad and
the 4 red digit led display at the front of the instrument (see Table 6).
AT POWER-UP
When the power supply is connected, the instrument applies the
following sequence :
• the ‘display’ shows the rmware code ‘b4.xx’.
• the ‘display’ shows the congured ‘sensor’, ‘input range’ and ‘units’,
(for example: ‘SEnSor nPn’, ‘1.000’ and ‘KHz’).
• the instrument is now in ‘normal mode’ of operation and the ‘display’
shows the ‘information’ congured at section 16.6.
FROM ‘NORMAL MODE’ OF OPERATION
From ‘normal mode’ of operation, the operator can access the following
functions:
• key ‘SQ’ (<) gives access to the ‘conguration menu’ (see section 12.3).
• key ‘UP’ (5) gives access to the ‘force’ menu (see section 12.4).
• key ‘LE’ (3) activates the ‘messages’ function (see section 12.5).
‘ECO’ FUNCTION (‘DISPLAY’ POWERED OFF)
The ‘Eco’ function powers off the display under the following conditions:
• the instrument is in ‘normal mode’ of operation.
• there is no interaction from the operator for 60 seconds.
The decimal point remains active (ashing), indicating that the
instrument is working correctly. This is a congurable function, enabled
by default. To congure the ‘Eco’ function, see section 16.9.
12.1 Conguration system
12.2 ‘Normal mode’ of operation
HOW TO ENTER THE ‘CONFIGURATION MENU’
With the instrument in ‘normal mode’ of operation (see section 12.2),
press the ‘SQ’ (<) key and maintain for 1 second. The horizontal leds
light from bottom to top. When the upper led lights, the instrument
enters into the ‘conguration menu’.
When entering the ‘conguration menu’, the rst menu entry ‘Function
code’ (codE) is displayed. See section 17 for a full view of the
‘conguration menu’.
If the ‘SQ’ (<) key is released before entering into the
‘conguration menu’, the horizontal leds light downwards from
top to bottom, and the instrument returns to ‘normal mode’ of
operation.
HOW TO OPERATE INSIDE THE ‘CONFIGURATION MENU’
Inside the ‘conguration menu’, use the front keypad to move through
menu entries, parameters, and select conguration values:
•Key ‘SQ’ (<) functions as the ‘ENTER’ key. It selects the menu entry
currently displayed. At numerical value entries, it validates the number
displayed.
•Key ‘UP’ (5) moves vertically through the different menu entries.
At numerical value entries, it modies the selected digit by increasing
its value to 0, 1, 2, 3, 4, 5, 6, 7, 8, 9. The most signicant digit has
additional values ‘-’ and ‘-1’.
•Key ‘LE’ (3) functions as the ‘ESCAPE’ key. It leaves the selected
menu entry, and eventually, will leave the ‘conguration menu’.
When leaving the ‘conguration menu’, the changed parameters are
activated. At numerical value entries, the ‘LE’ (3) key allows to select
the active digit. To modify a numeric value press the ‘UP’ (5) key to
increase the value ‘+1’. Press the ‘SQ’ (<) key to validate the value.
WHEN EXITING THE ‘CONFIGURATION MENU’
When exiting the ‘conguration menu’ without changes (either by
‘rollback’ activation or because there are no changes in the conguration),
the horizontal leds light down from top to bottom, and the instrument
returns to ‘normal mode’ of operation.
When exiting the ‘conguration menu’ with changes, the display leds light
a round shape while the new conguration is stored. When the round
shape is nished, a start-up is applied (see section 12.2). After start-up,
the new conguration is active and the instrument is in ‘normal mode’ of
operation.
‘ROLLBACK’ FUNCTION
If there is no interaction from the operator for 60 seconds, the instrument
exits the ‘conguration menu’ discarding changes, and returns to ‘normal
mode’ of operation.
12.3 How to operate the ‘Conguration menu’
Table 6 | CONFIGURATION SYSTEM
Key ‘SQ’ (<)
Display
Key ‘UP’ (5)
Key ‘LE’ (3)
Table 7 | ‘ECO’ DECIMAL POINT
Flashing
When the operator is inside the ‘conguration menu’, the output
signal will remain overranged at maximum signal. Additional
congurations are available at the ‘On ‘Sq’’ parameter (see
section 16.9).
When the operator exits the ‘conguration menu’, the output
signal is temporarily set to minimum value for a time
<5 seconds, while the instrument restarts.

SERIES I4 · Model I4F
Section INDUSTRIAL . ISOLATED SIGNAL CONVERTERS
www.fema.es 7
HOW TO ENTER THE ‘FORCE’ MENU
With the instrument in ‘normal mode’ of operation (see section 12.2),
press and hold the ‘UP’ (5) key for 1 second. The horizontal leds light
from bottom to top. When the upper led lights, the instrument enters into
the ‘force’ menu.
If the ‘UP’ (5) key is released before entering into the ‘force’ menu, the
horizontal leds light downwards from top to bottom, and the instrument
returns to ‘normal mode’ of operation.
HOW TO OPERATE INSIDE THE ‘FORCE’ MENU
The available functions inside the ‘force’ menu can be congured (see
section 16.7). By default, ‘Force high’, ‘Force low’ and ‘Force set’ are
available. Inside the ‘force’ menu:
• press the ‘UP’ (5) key to move to the next function.
• press the ‘SQ’ (<) key to activate the selected function.
When the function is active, the display will remain ashing. Press the
‘SQ’ (<) key to deactivate the function (display stops ashing), or wait
for the rollback to activate.
DESCRIPTION OF ‘FORCE’ FUNCTIONS
The ‘force’ functions allow to manually force the output signal to the low
and high levels of the output signal selected. These functions allow to
easily validate the correct function of remote elements connected to the
instrument output, such as PLC, HMI’s, SCADAs, etc.
The ‘force low’ function sets the output signal to the minimum value of
the selected range (4 mA or 0 Vdc or the value congured at the ‘output_
low’ parameter).
The ‘force high’ function sets the output signal to the maximum value
of the selected range (20 mA or 10 Vdc or the value congured at the
‘output_high’ parameter).
The ‘force set’ function sets the output signal to a value between 0 and
100% of the maximum selected range (4 to 20 mA or 0 to 10 Vdc or
the range congured at the ‘output_low’ and ‘output_high’ parameters).
When entering the ‘force set’ function, the display reads ‘50’ (the output
is forced to 50% of the congured range). Use keys ‘UP’ (5) and ‘LE’ (3)
to move up to 100% or down to 0% of the congured range.
12.4 How to operate the ‘Force’ menu
HOW TO ACTIVATE ‘MESSAGES’ FUNCTION
With the instrument in ‘normal mode’ of operation (see section 12.2),
press the ‘LE’ (3) key to activate the ‘messages’ function. The ‘messages’
function displays information about the instrument. The information
available is congurable (see section 16.8).
The ‘messages’ function ends when all the information has been
displayed or front keys ‘UP’ (5) or ‘SQ’ (<) are pressed. The ‘display’
returns to ‘normal mode’ of operation.
12.5 How to activate the ‘Messages’ function
12. How to operate the instrument (cont.)
Table 8 | Example of ‘Force’ menu with all functions set to ‘on’
‘Force low’
‘Force high’
Exit
Force set
See section 16.7 for a list and a description of available functions.
12.6 Fast and advanced congurations
FAST CONFIGURATION
The fastest way to congure the instrument is to activate one of the
predened conguration codes (see section 8) and predened sensors
(see section 9).
Access the ‘conguration menu’ and enter the ‘Function code’ (codE)
menu entry. The code displayed is the current active input - output range.
Select the new code and validate. Selecting a code automatically exits
the ‘conguration menu’ and activates the new conguration.
Access the ‘conguration menu’ and enter the ‘Predened sensors’
(SnSr) menu entry. The sensor displays the actual congured sensor.
Select the desired sensor and validate.
To customize the input and output signals, see the ‘Advanced scaling’
section of the ‘conguration menu’ (see section 16.5).
To customize the sensor parameters, see the ‘Sensor conguration’
section of the ‘conguration menu’ (see section 16.2).
ADVANCED CONFIGURATION
Additional conguration parameters are available at the ‘conguration
menu’. The operator can customize the input and output signal ranges,
sensor parameters, the message seen on display, the functions available
at the ‘force’ menu, the messages associated to the ‘LE’ (3) key, activate
lters, password function, etc.
See section 16 for a detailed explanation on the ‘conguration menu’.
HOW TO EXIT ‘FORCE’ MENU
To exit the ‘force’ menu, press the ‘LE’ (3) key, or press the key ‘UP’
(5) key until the parameter ‘---’ appears, and select by pressing the ‘SQ’
(<) key, or wait without pressing any key until the automatic ‘rollback’
activates.
When exiting the ‘force’ menu, the horizontal leds light down from top to
bottom, and the instrument returns to ‘normal mode’ of operation.
‘ROLLBACK’ FUNCTION
If there is no interaction from the operator for 60 seconds, the instrument
exits the ‘force’ menu and returns to ‘normal mode’ of operation.
*There are different codes for 4/20 mA and 0/10 Vdc output
signals.

FEMA · MANUFACTURING FOR INDUSTRIAL AUTOMATION
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SIGNALS ACCEPTED
The instrument can be congured to measure frequency
from typical impulse sensors, such as NPN, PNP, pick-up,
push-pull, mechanical contact, reed contact, Namur and
similar.
The instrument parameters allow to congure pull-up and pull-down
resistors, apply signal amplication for very low voltage signal, modify
the trigger level, apply anti-rebound lters, and congure the voltage to
power the sensor.
Although there is a dedicated menu entry for most popular sensor types,
the operator can manually congure the mentioned parameters as
needed, as explained in section ‘16.2’.
PREDEFINED CONFIGURATION CODES
See ‘Table 2’ for a list of predened conguration codes for input-output
signal ranges. To activate a code see section 16.1.
CUSTOMIZED SIGNAL RANGES
To customize the input and / or output signal ranges, access the
‘Advanced scaling’ menu (see section 16.5).
ACCURACY AND FREQUENCY LIMITS
Accuracy depends on the calculation mode (see section 15).
Maximum frequency depends on the sensor (see Table 3).
TRIGGER LEVELS
When directed through reading channel ‘B’ (see section 10), a typical
value for level detection is ‘0’ below 1 Vdc, and ‘1’ above 2 Vdc. Operate
the ‘Trigger level’ parameter (see section 16.2) to empirically move up
and down the trigger levels. The limit trigger level are approximately
0.5 Vdc and 3 Vdc.
Pick-up signals are typically channeled through channel ‘A’ and signal
is detected as a ‘0 crossing’. Trigger levels can help improve noise
immunity.
Frequency
Hz
13. Input signals
SIGNALS ACCEPTED
The instrument has a dedicated input to read frequency from
voltages up to 600 Vac and voltages up to 60 Vac. Phase-to-
phase and phase-to-neutral connections are accepted.
PREDEFINED CONFIGURATION CODES
See ‘Table 2’ for a list of predened conguration codes for input-output
signal ranges. To activate a code see section 16.1.
CUSTOMIZED SIGNAL RANGES
To customize the input and / or output signal ranges, access the
‘Advanced scaling’ menu (see section 16.5).
ACCURACY AND MAXIMUM FREQUENCY
Accuracy depends on the calculation mode (see section 15).
Maximum frequency depends on the sensor (see Table 3).
TRIGGER LEVELS
AC signals signals are channeled through channel ‘A’ and signal
is detected as a ‘0 crossing’. Trigger levels can help improve noise
immunity around ‘0’.
MINIMUM AMPLITUDE LEVELS
The minimum voltage levels recommended are 30 Vac for the 600 Vac
range, and 6 Vac for the 60 Vac range. Signals with amplitude levels
below 6 Vac, should be channeled as ‘low voltage’ input signals (see
section 13.1).
Frequency
Hz
Table 9 | CONNECTION EXAMPLES FOR Vac <600 Vac and <60 Vac SIGNALS
456
(~) ≤600 Vac
(~)
456
(~) ≤60 Vac
(~)
Table 10 | CONNECTION EXAMPLES
123
common
+15 Vexc
signal
NPN or PNP or push-pull (3 wires)
123
contact
contact
mechanical contact, reed contact
(with internal pull-up)
123
+8.2 Vexc
signal
NAMUR
123
common
signal
Pick-up
Terminal 4 and terminal 1 are internally connected. Connecting
dangerous voltages to terminal 4 makes terminal 1 a terminal
with dangerous voltage.
13.1 Low voltage frequency signals 13.2 Vac frequency signals

SERIES I4 · Model I4F
Section INDUSTRIAL . ISOLATED SIGNAL CONVERTERS
www.fema.es 9
14. Technical specications
SENSORS
types of sensor NPN, PNP, pick-up, push-pull, mechanical
contact, reed contact, Vac, ...
see the ‘Advanced sensor’ menu (see section 16.2) for sensor conguration
max. voltage at terminals (see Table 3)
input impedance (see Table 11)
maximum frequency (see Table 11)
excitation voltage 15 Vdc @50 mA
8.2 Vdc @50 mA
5 Vdc @50 mA
typical detection levels (see Table 3)
detection levels are changeable through the ‘trigger’ parameter
ACCURACY AT 25ºC
‘slow’ mode error f2 x 0.5 x 10-6 Hz.
‘fast’ mode error 1/gate (see ‘gate’ parameter at section 16.2)
(typical error 2 Hz for ‘gate’ of 0.5 seconds)
quartz accuracy
±50 ppm
mA output accuracy 0.05 % FS
Vdc output accuracy 0.10 % FS
thermal drift 50 ppm/ºC
min. detectable frequency 100 mHz
(signals below 100 mHz are considered 0 Hz)
resolution 1 mHz
STEP RESPONSE
in ‘fast’ mode ‘Gate’ parameter + 50 mSec.
in ‘slow’ mode 1/frequency + 50 mSec.
OUTPUT SIGNAL RANGES
active current output 4/20 mA active
max. <22 mA, min. 0 mA
maximum load <400 Ohm
passive current output 4/20 mA passive
max. 30 Vdc on terminals
voltage output 0/10 Vdc,
max. <11 Vdc, min. -0.05 Vdc (typ.)
minimum load > 10 KOhm
CONFIGURATION SYSTEM
key pad + display accessible at the front of the instrument
conguration ‘conguration menu’ and predened ‘codes’
scalable units scalable input ranges
scalable output ranges
scalable process display
POWER SUPPLY
voltage range 18 to 265 Vac/dc isolated
(20 to 240 Vac/dc ±10%)
AC frequency 45 to 65 Hz
consumption <3.5 W
power wires 1 mm2 to 2.5 mm2 (AWG17 to AWG14)
overvoltage category 2
ISOLATION
input - output 3000 Veff (60 seconds)
power - input 3000 Veff (60 seconds)
power - output 3000 Veff (60 seconds)
ENVIRONMENTAL
IP protection IP30
impact protection IK06
operation temperature from 0 to +50 ºC
storage temperature from -20 to +70 ºC
‘warm-up’ time 15 minutes
humidity 0 to 95% non condensing
altitude up to 2000 meters
MECHANICAL
size 106 x 108 x 22.5 mm
mounting standard DIN rail (35 x 7.5 mm)
connections
plug-in screw terminal (pitch 5.08 mm)
housing material polyamide V0
weight <150 grams
packaging 120 x 115 x 30 mm, cardboard
Table 11 | Sensor types and specications
Sensor
Zin Max. voltage
at terminals
Minimum detectable
signal / detection levels
NPN 5.1 KOhms
± 30 Vdc ‘0’ level <1V, ‘1’ level >2V
PNP 5.1 KOhms
± 30 Vdc ‘0’ level <1V, ‘1’ level >2V
Mechanical 5.1 KOhms ± 30 Vdc ‘0’ level <1V, ‘1’ level >2V
Reed 5.1 KOhms
± 30 Vdc ‘0’ level <1V, ‘1’ level >2V
Pick-up 100 KOhms
± 30 Vdc >10 mVpp
Namur 5.1 KOhms
± 30 Vdc ---
TTL 5.1 KOhms
± 30 Vdc ‘0’ level <1V, ‘1’ level >2V
<600 Vac 900 KOhms
800 Vac ---
<60 Vac 340 KOhms 200 Vac ---
15. Frequency calculation modes
The instrument calculates the frequency applying the ‘slow’ mode or the
‘fast’ mode.
Fast mode
‘Fast’ mode activates when the ‘input high signal’ parameter (see section
16.5) is higher or equal than 500 Hz.
The frequency calculated is the number of impulses received during a
time window, divided by the time window value in seconds. The time
window is congured at the ‘Gate’ (GAtE) parameter (see section 16.2)
with available values ‘0.5’, ‘1.0’, ‘2.0 and ‘4.0’ seconds.
The frequency value is calculated at the end of each time window.
Slow mode
‘Slow’ mode activates when the ‘input high signal’ parameter is below 500 Hz.
The frequency calculated is the inverse of the time between impulses.
The value is calculated and updated every time an impulse is detected.
Measured frequency is ‘0’ when the time between impulses is higher
than the value congured at the ‘time_to_0’ (tt0) parameter (values
between ‘1.0’ and ‘10.0’ seconds). Once the reading has dropped to ‘0 ’,
the instrument needs 2 impulses to measure a new frequency.
Ranges below 500 Hz can also be manually set to ‘fast’ mode if needed
(see section 16.2). Parameters not available in the active mode, will
show ‘-nA-’ when accessing their value at the conguration menu.

FEMA · MANUFACTURING FOR INDUSTRIAL AUTOMATION
10
16. Conguration menu
16.1 Function codes and sensor
The fastest way to congure the instrument, is to select a predened
conguration code (see Table 2) and a predened sensor (see Table 3).
At the ‘Conguration code’ (codE) parameter use keys ‘UP’ (5) and ‘LE’
(3) to move up and down through the list of codes. Locate the desired
code, and press ‘SQ’ (<). The instrument shows the ‘codE’ parameter.
Press ‘LE’ (3) to exit the ‘conguration menu’. The instrument stores the
new conguration, applies a ‘power-up’ routine and returns to the ‘normal
mode’ of operation (see section 12.2).
Selecting a ‘reserved’ code performs no action. Selecting ‘---’ exits the
‘conguration menu’ without applying changes.
When checking the ‘Function code’ (codE) parameter, the active
‘conguration code’ is displayed. If the actual conguration does not
match any of the conguration codes, code ‘uSEr’ is displayed.
There are different codes for 4/20 mA output (codes from 010 to 099)
and 0/10 Vdc output (codes from 110 to 199) (see section 8).
To customize the input signal range, see the ‘Advanced scaling’ section
of the ‘conguration menu’ (see section 16.5).
Conguration code
Enter the code (see Table 2)
Sensor conguration is a critical part of the conguration. If the sensor
is correctly congured, the instrument will be able to read impulses. If
the sensor is not correctly congured, the instrument will not be able to
read any impulse signal and it will be considered a 0 Hz signal.
• Parameters at the ‘Advanced sensor conguration’ (Ad.Sn), reect the
conguration of the ‘Predened sensors’ (SnSr) selection.
• Changing the parameters at the ‘Advanced sensor conguration’ (Ad.
Sn) menu, will set the ‘Predened sensors’ (SnSr) value to ‘uSEr’ (‘User
sensor conguration’) meaning that the actual conguration does not
match any of the predened sensor congurations (see Table 3).
At the ‘Pull resistors’ (PuL.r) parameter select the activation or
deactivation of pull-up and pull-down resistors.
• select ‘P.uP’ to activate the pull-up resistor
• select ‘P.dn’ to activate the pull-down resistor
• select ‘nonE’ to deactivate the pull-up and pull-down resistors
At the ‘Gain amplication’ (GAIn) parameter select the gain of the input
signal . Gain applies only to signals through channel ‘A’ and connected
to terminals ‘123’.
• select ‘G__1’ to activate the gain ‘1’. Usual gain for Vdc signals, that
are correctly detected operating the ‘trigger level’.
Excitation voltage
15 Vdc
8.2 Vdc for Namur
5 Vdc
disabled
Pull resistors
pull-up resistor
pull-down resistor
no pull resistors
Gain amplication
gain x1
gain x100
Trigger level
maximum level
intermediate level
minimum level
Antirrebound lter
0 to 1000 mSeconds
Predened
sensors
NPN
PNP
mechanical contact
reed contact
pick-up
TTL
Namur
Vac
user sensor conguration
Advanced sensor
conguration
16.2 Sensor conguration
At the ‘Predened sensors’ (SnSr) menu, select one of the predened
sensors. Once the sensor is congured, the instrument is ready to work.
The selection congures the sensor according to ‘Table 3’ (see section
14) and updates the parameters at the ‘Advanced sensor conguration’
(Ad.Sn) menu. The actual sensor is displayed, and when the actual
conguration does not match any of the predened sensors, then ‘uSEr’
is displayed.
If the output signal is xed to 4 mA or 0 Vdc, and does not
change according to the frequency at the input, then the input
frequency detected is 0 Hz, and probably the predened sensor
conguration is not suitable for your sensor. A manual conguration
of the sensor may be needed. See section 16.2 on how to manually
congure the sensor parameters.

SERIES I4 · Model I4F
Section INDUSTRIAL . ISOLATED SIGNAL CONVERTERS
www.fema.es 11
16. Conguration menu (cont.)
16.3 Input range
At the ‘Input range’ (InP) menu entry select the input signal range to
activate.
If you have already selected a conguration code (see section
16.1), the input range has been already selected and there is
no need to manually congure again at the ‘Input range’ (InP)
menu entry.
Input signal ranges can also be activated through the ‘predened
conguration codes’ (see Table 2).
All input signal ranges can be congured to a reduced input signal range
by conguring the ‘Advanced scaling’ (Ad.Sc) parameters (see section
16.5).
• example: select the ‘1 KHz ’ input range and to customize to a smaller
range (for example 0/750 Hz or 250/750 Hz) see section 16.5 and
operate each parameter.
• select ‘G100’ to activate the gain ‘100’. Use this gain for low voltage
signals, in the range of mV, that can not be detected by operating the
‘trigger level’ parameter to its lower value.
At the ‘Trigger level’ (trIG) parameter select empirically the ‘trigger level’
at a level between ‘0’ and ‘31’. Default value is ‘15’. Press key ‘UP’ (5) to
increase the value, and key ‘LE’ (3) to decrease the value.
• to help you identify the appropriate trigger level, the vertical led at the
left of the display is placed at the bottom when the signal detected is
‘0’, and is placed at the top when the signal detected is ‘1’. Change the
state of your input signal, and check the status of the led to know if the
instrument is detecting the changes at the input.
At the ‘Antirrebound lter’ (rbnd) parameter select a time value from
‘0’ to ‘1000’ expressed in milliseconds. After a valid impulse has been
detected, the detection of new impulses is disables for the duration
of the congured time. Use this parameter to prevent detection of
rebounds. A ‘100’ milliseconds value is considered a standard value to
prevent rebounds when working with mechanical contacts. Applies only
in ‘slow mode’ (see section 15).
At the ‘Excitation voltage’ (V.Exc) parameter select the value of the
excitation voltage. Select +15 Vdc (15 V), select +8.2 Vdc (8.2V) for
Namur sensors, select +5 Vdc (5 V) for TTL or select oFF (oFF) to disable
the excitation voltage.
At the ‘Reading channel’ (chL) parameter select the channel ‘A’ or ‘B’ to
read the signal (see section 10).
At the ‘Working mode’ (ModE) parameter select the frequency calculation
mode (see section 15).
At the ‘Gate’ (GAtE) parameter congure the value to ‘0.25’, ‘0.50’, ‘1.0’,
‘2.0’ or ‘4.0’ seconds. Applies only in ‘fast’ mode (see section 15).
At the ‘Time to 0’ (tt0) parameter congure a value between ‘1.0’ and
‘10.0’ seconds. Applies only in ‘slow mode’ (see section 15). Default
value is 1 second.
At the ‘Number of imp.’ (nUMb) parameter congure a value between
‘1’ and ‘32’. Applies only in ‘slow mode’ (see section 15). Dene the
number of impulses needed to calculate the frequency (default value ‘1’).
Example : select ‘4’ to wait for 4 impulses, and then calculate the mean
frequency value of the set of 4 impulses.
Input range
0/1 Hz
0/2 Hz
0/10 Hz
0/6 Hz
0/8 Hz
0/20 Hz
0/40 Hz
0/4 Hz
0/80 Hz
0/100 Hz
0/60 Hz
0/600 Hz
0/400 Hz
0/200 Hz
Reading channel
channel ‘A’
channel ‘B’
Gate 0.5 sec.
1 sec.
4 sec.
0.25 sec.
2 sec.
Time to 0
1.0 to 10.0 seconds
Number of imp.
1 to 32 impulses
0/1 KHz
0/800 Hz
Working mode
Slow mode
Fast mode

FEMA · MANUFACTURING FOR INDUSTRIAL AUTOMATION
12
16. Conguration menu (cont.)
At the ‘Advanced scaling’ (Ad.Sc) menu, the input and output signal
ranges can be customized. The parameters inside this menu represent
the real input and output signal ranges congured at the instrument.
When selecting a ‘predened conguration code’, these parameters are
congured according to the code selected. The parameters listed below,
are accessible for manual conguration:
• at the ‘Input units’ (unIt) parameter congure the units for the input
signal parameters, between ‘Input units in Hz’ (hrZ), ‘Input units in
KHz’ (KhrZ) and ‘Input units in MHz’ (MhrZ).
• at the ‘Input low signal’ (In.Lo) parameter congure the low input
signal value. Units expressed as congured at the ‘Input units’ (unIt)
parameter, with 1 decimal point.
• at the ‘Input high signal’ (In.hI) parameter congure the high input
signal value. Units expressed as congured at the ‘Input units’ (unIt)
parameter, with 1 decimal point.
• at the ‘Output low signal’ (ou.Lo) parameter congure the low output
signal value. Units expressed in Vdc o mA, , with 2 decimal points.
• at the ‘Output high signal’ (ou.hI) parameter congure the high
output signal value. Units expressed in Vdc o mA, , with 2 decimal
points.
These ve parameters dene the relation between the input and the output
signal (see Table 12), and can be modied independently, to match the
specic input-output relation for your application (see Table 12).
Additionally, a process value can be scaled using the last three
parameters of the ‘Advanced Scaling’ (Ad.Sc) menu entry. The scaled
process value can be accessed through the ‘display information’ function
(see section 16.6) or the ‘messages’ function (see section 16.8).
• at the ‘Process low’ (Pr.Lo) parameter, congure the process value
associated to the low input signal value.
• at the ‘Process high’ (Pr.hI) parameter, congure the process value
associated to the high input signal value.
Advanced scaling
input signal low
input signal high
output signal low
output signal high
process low
process high
process decimal point
16.4 Output range
At the ‘Output range’ (out) menu entry, select the output signal range to
4/20 mA (value ‘420’) or to 0/10 Vdc (value ‘010’).
The output signal range selected can be later customized to operate in a
reduced range of signal (see section 16.5)
Output range
Input units
input units in Hz
input units in KHz
0/10 KHz
0/100 KHz
0/80 KHz
0/60 KHz
0/40 KHz
0/20 KHz
0/8 KHz
0/4 KHz
0/2 KHz
input units in MHz
0/1 MHz
0/6 KHz
16.5 Advanced scaling

SERIES I4 · Model I4F
Section INDUSTRIAL . ISOLATED SIGNAL CONVERTERS
www.fema.es 13
16. Conguration menu (cont.)
Display
information
input signal value
output signal value
label
signal percentage
process value
At the ‘Display information’ (dISP) menu select one parameter to read
on display when the instrument is in ‘normal mode’ of operation. If you
need access to more than one information, see the ‘messages’ function
(see section 16.8) associated to front key ‘LE’ (3).
• select ‘Input signal value’ (InP.S) to read the input signal value and
the measurement units (for example : ‘Inp hz 235’, ‘Inp Kh 235’, ‘Inp
Mh 235’, ...).
• select ‘Output signal value’ (out.S) to read the output signal value
and the measurement units (for example : ‘Out mA 12.40’).
• select ‘Label’ (LAbL) to read the value congured at the ‘label’
parameter (see section 16.9).
• select ‘Process value’ (Proc) to read the process value as scaled at
the process parameters (see section 16.5) (for example: ‘Proc 1500’).
• select ‘Percentage’ (Prct) to read the percentage of signal, where
‘0’ is the value assigned to the ‘input signal low’ parameter, and ‘100’
is the value assigned to the ‘input signal high’ parameter (see section
16.5) (for example : ‘Prct 23.5’ when the reading is 23.5% of the full
scale).
16.6 Display information
Table 12 | EXAMPLE FOR CODE ‘025’ (0/1000 HZ=4/20 mA)
Output
4 mA
Input
0 Hz 1000 Hz
20 mA
Selecting the predened code ‘025’ congures a range of 0/1000 Hz=4/20 mA,
and the values congured are as indicated below:
input units = hertz (Hz)
input signal low = 0 Hz output signal low = 4.00 mA
input signal high = 1000 Hz output signal high = 20.00 mA
• at the ‘Process decimal point’ (Pr.dP) parameter, congure the
decimal point position for the process value.
Example: a 0/1000 Hz signal from is associated to a 0/150.0 RPM process
value. Congure the process value to ‘0’ and ‘150.0’ (‘Process low’ = ‘0’,
‘Process high’=‘1500’, ‘Process decimal point’=’xxx.x’). The process value
in RPM can be displayed at the front display

FEMA · MANUFACTURING FOR INDUSTRIAL AUTOMATION
14
16. Conguration menu (cont.)
The ‘Tools’ (tool) menu groups several functions.
• at the ‘Eco mode’ (Eco) parameter, dene the time to wait before the
display is powered off (while in ‘normal mode’ of operation). Default
value is 60 seconds. Congure ‘0’ to disable the function and maintain
the display always on.
• at the ‘SOS mode’ (SoS) parameter select ‘on’ to activate the output
signal to a predened value. Select the value from 0 to 100% of the
active output range (4/20 mA or 0/10 Vdc). To deactivate the ‘SOS
mode’ select ‘oFF’. See section 6 for more information on the ‘SOS
mode’.
16.9 ‘Tools’ menu
Key ‘LE’
(messages function)
Input signal value
Output signal value
Process value
Label
Percentage
The key ‘LE’ (3) at the front of the instrument gives access to a
congurable set of information messages.
At the ‘Key LE (messages function)’ (K.LE) menu, select the informations
to be displayed when the front key ‘LE’ (3) is pressed (see section 12.5).
Select ‘on’ to activate each information.
• congure ‘Input signal value’ (InP.S) to ‘on’ to see the actual input
signal value and units (for example: ‘Inp hz 480’)
• congure ‘Output signal value’ (out.S) to ‘on’ to see the actual output
signal value and units (for example: ‘Out mA 08.3’)
• congure ‘Label’ (LAbL) to ‘on’ to read the value congured at the
‘label’ parameter (see section 16.9).
• congure ‘Process value’ (Proc) to ‘on’ to read the process value as
congured at the process parameters (see section 16.5) (for example: ‘Proc
1500’).
• congure ‘Percentage’ (Prct) to ‘on’ to see the actual percentage
of signal, where ‘0’ is the value assigned to the ‘input signal low’
parameter, and ‘100’ is the value assigned to the ‘input signal high’
parameter (see section 16.5) (for example: ‘Prct 23.5’).
When more than one parameter is set to ‘on’, values will be displayed
sequentially, in the same order as they are listed in the menu, with a
middle dash ‘-’ between them. When all information has been displayed,
the instrument returns to ‘normal mode’ of operation.
16.8 Key ‘LE’ (‘messages’ function)
‘Eco’ mode 5 to 255 seconds (0 disabled) (60 sec. default)
Tools
SOS mode % of output
The key ‘UP’ (5) at the front of the instrument gives access to a
congurable list of functions (see section 12.4).
At the ‘Key UP (‘force’ menu)’ (K.uP) menu select which functions will
be available when pressing the front key ‘UP’ (5). Select ‘on’ to activate
the desired functions.
• congure ‘Force Low’ (F.Lo) to ‘on’ to activate the ‘Force low’ function
menu entry.
• congure ‘Force High’ (F.hI) to ‘on’ to activate the ‘Force high’ function
menu entry.
• congure ‘Force Set’ (F.SEt) to ‘on’ to activate the ‘Force set’ function
menu entry.
The functions congured to ‘on’ are available at the ‘force’ menu. See
section 12.4 for a description on each function and how to operate them.
16.7 Key ‘UP’ (‘force’ menu)
Key ‘UP’
(‘force’ menu)
Force low
Force high
Force set

SERIES I4 · Model I4F
Section INDUSTRIAL . ISOLATED SIGNAL CONVERTERS
www.fema.es 15
16. Conguration menu (cont.)
Average lter 0 to 100
Password
Version
Factory reset
‘Dead band’ 0.0 to 100.0%
• at the ‘Label’ (LAbL) parameter, dene an alphanumerical value to
be displayed on the display, when the instrument is in ‘normal mode’
of operation, or at the ‘messages’ function when the key ‘LE’ (3) is
pressed. The label can be used to identify the instrument with its
own internal factory code. If more than four characters are needed,
congure the ‘Label 2’ (LbL.2) parameter. The total label value is
the characters at ‘label’ followed by the characters at ‘label2’. For
additional information and a list of available characters, see section 7.
• at the ‘
On error ’ ( on.Er ) parameter, congure the behavior of the
output signal, in case of hardware error at the input (see section 19).
• select ‘Output to high’ (to.hI) to force the output signal to overrange
to maximum value
• select ‘Output to low’ (to.Lo) to force the output signal to
underrange to minimum value
• select ‘Standard output’ (Stdr) to overrange output signal to
maximum value in case of input signal overrange, and to underrange
output signal to minimum value in case of input signal underrange.
• at the ‘
On ‘SQ’ ’ ( on.Sq ) parameter, congure the behavior of the
output signal when the operator is inside ‘conguration menu’ (see
section 12.3).
• select ‘Output to high’ (to.hI) to force the output signal to overrange
to maximum value
• select ‘Output to low’ (to.Lo) to force the output signal to
underrange to minimum value
• select ‘Hold output’ (hoLd) to hold the output signal while the
operator remains inside ‘conguration menu’.
• at the ‘
Average lter ’ ( AVr ) parameter, congure the recursive lter to
be applied to measured input signal. The lter can be used to reduce
oscillations on noisy signals. Congure the lter strength between
‘0’ and ‘100’. The lter is stronger with higher values. Increasing the
strength of the lter slows the response speed of the instrument.
Value ‘0’ disables the lter.
• at the ‘
Dead band ’ ( d.bnd ) parameter set a value between ‘0.0’ % and
‘100.0’ %. This is a percentage of the ‘input signal high’ parameter
congured at the ‘Advanced scaling’ section. Input signals below this
value, are treated as a ‘0’. This parameter applies to all measuring
ranges.
• the ‘
Version ’ ( VEr ) parameter informs about the rmware version
running in the instrument.
• at the ‘
Password ’ ( PASS ) parameter dene a 4 digit code to block
access to the ‘conguration menu’. Activate the password to
prevent access to the instrument conguration by non authorized
personnel. To activate the ‘Password’ function select ‘on’, enter the
code and validate. The password will be requested when entering
the ‘conguration menu’. The password does not block access to the
‘force’ menu. To deactivate the password, select ‘oFF’.
• at the ‘
Factory reset ’ ( FAct ) parameter select ‘yes’ to activate the
default factory conguration (see section 18 for a list of factory
default parameters).
On ‘SQ’
output to high
output to low
hold output
Label
alphanumerical
Label 2
alphanumerical
On error
output to high
output to low
standard output

FEMA · MANUFACTURING FOR INDUSTRIAL AUTOMATION
16
17. Full conguration menu
Press ‘SQ’ (<) for 1 second to access the ‘conguration menu’. For
a description on how to operate inside the menus see section 12.
For a full vision of the ‘conguration menu’ structure see section 16.
Function code
Enter the function code (see section 8)
Pull resistors
pull-up resistor
pull-down resistor
no pull resistors
Gain amplication
gain x1
gain x100
Trigger level
maximum level
intermediate level
minimum level
Antirrebound lter
0 to 1000 mSeconds
Excitation voltage
15 Vdc
8.2 Vdc for Namur
5 Vdc
disabled
0/8 KHz
0/10 Hz
0/8 Hz
0/20 Hz
0/40 Hz
0/1 KHz
0/80 Hz
0/100 Hz
0/60 Hz
0/800 Hz
0/600 Hz
0/400 Hz
0/200 Hz
0/4 KHz
0/2 KHz
0/1 Hz
0/2 Hz
Input range
0/6 Hz
0/4 Hz
Reading channel
channel ‘A’
channel ‘B’
Working mode
Time to 0
1.0 to 10.0 seconds
Number of imp.
1 to 32 impulses
Gate 0.5 sec.
1 sec.
4 sec.
0.25 sec.
2 sec.
‘slow’ mode
‘fast’ mode
Predened
sensors
NPN
PNP
mechanical contact
reed contact
pick-up
TTL
Namur
Vac
User sensor conguration
Advanced sensor
conguration
0/6 KHz

SERIES I4 · Model I4F
Section INDUSTRIAL . ISOLATED SIGNAL CONVERTERS
www.fema.es 17
Output range
17. Full conguration menu (cont.)
‘Eco’ mode 5 to 255 seconds (0 disabled) (60 sec. default)
Tools
Version
Factory reset
Password
Label
alphanumerical
‘Dead band’ 0.0 to 100.0%
SOS mode % of output
Label 2
alphanumerical
On error
output to high
output to low
output standard
On ‘SQ’
output to high
output to low
hold output
Average lter 0 to 100
Key ‘UP’
(‘force’ menu)
Force low
Force high
Force set
Display
information
input signal value
output signal value
label
process value
signal percentage
0/100 KHz
0/80 KHz
0/60 KHz
0/40 KHz
0/20 KHz
Advanced scaling
input signal low
input signal high
output signal low
output signal high
process low
process high
process decimal point
Input units
input signal units in Hz
input signal units in kHz
input signal units in MHz
0/1 MHz Process value
Label
Percentage
Key ‘LE’
(messages function)
Input signal value
Output signal value
0/10 KHz

FEMA · MANUFACTURING FOR INDUSTRIAL AUTOMATION
18
Table 13 | ERROR CODES
Error Description
‘Er.01’Password error. The password code entered is not correct.
‘Er.04’Output hardware overrange. The output signal should be higher
than the maximum output signal that can be generated.
‘Er.05’Output hardware underrange. The output signal should be lower
than the minimum output signal that can be generated.
‘Er.08’
Scaled input slope not valid. The value at ‘Input signal high’ (In.hI)
has to be higher than the value at ‘Input signal low’ (In.Lo). Enter a
different value to validate the parameter (see section 16.5).
‘Er.09’
Scaled output slope not valid. The values for ‘Output signal low’
(ou.Lo) and ‘Output signal high’ (ou.hI) can not be the same. Enter
a different value to validate the parameter (see section 16.5).
‘Er.10’
Scaled process display slope not valid. The values for ‘Process
low’ (Pr.Lo) and ‘Process high’ (Pr.hI) can not be the same. Enter a
different value to validate the parameter (see section 16.5).
In case of error, the error code is shown ashing on the digits. The error
code remains active on display until the problem that caused the error is
solved. In case of multiple error codes, solve the rst problem to see the
next active error code. The error code is not visible inside ‘conguration
mode’ or inside the ‘force’ menu.
While on error, the output can be congured to overrange (to 21 mA,
10.4 Vdc), to underrange (to 3 mA or -0.05 Vdc) or to hold value. See the
‘On error’ (on.Er) parameter at section 16.9.
Function code (codE) 025 (c.025)
Predened sensors (SnSr) npn (nPn)
Advanced sensor conguration (Ad.Sn)
Pull resistors (PuL.r) pull-up (P.uP)
Gain amplication (GAIn) x1 (G 1)
Trigger level (TrIG) 25
Antirrebound lter (rnbd) 0 [milliseconds]
Excitation voltage (V.EXc) 15 Vdc (15 V)
Reading channel (chL) ‘B’
Calculation mode (ModE) fast (FASt)
Gate (GAtE) 0.5 [seconds]
Time to 0 (tt0) 1.0 [seconds]
Number of impulses (nuMb) 1
Input range (InP) 0/1K Hz (1K)
Output range (out) 4/20 mA (420)
Advanced scaling (Ad.Sc)
Units (unIt) kHertz (khrZ)
Input signal low (In.Lo) 0.0 [kHz]
Input signal high (In.hI) 1.0 [kHz]
Output signal low (ou.Lo) 4.00 [mA]
Output signal high (ou.hI) 20.00 [mA]
Process low (Pr.Lo) 0
Process high (Pr.hI) 1000
Process decimal point (Pr.dP) xxxx
Display information (dISP) Input signal value (InP.S)
Key ‘UP’ (‘force’ menu) (K.uP)
Force low (F.Lo) on
Force high (F.hI) on
Force set (FSEt) on
Key ‘LE’ (‘messages’ function) (K.LE)
Input signal value (InP.S) off
Output signal value (out.S) on
Label (LAbL) off
Process value (Proc) off
Percentage (Prct) off
Tools (tooL)
‘Eco’ mode (Eco) 60 [seconds]
SOS mode (SoS) off
Label (LAbL) LAbL
Label 2 (LbL.2) ---- (disabled)
On error (on.Er) to.hI (output to maximum value)
On ‘SQ’ (on.Sq) to.hI (output to maximum value)
Average lter (AVr) 0 (disabled)
Dead band (d.bnd) 0.0 (disabled)
Password (PASS) off (disabled)
18. Factory default parameters
RESET TO DEFAULT FACTORY PARAMETERS
To recover the instrument to default factory parameters, enter into
‘conguration menu’ and go to ‘Tools’ / ‘Factory reset’ and select ‘yes’
• access the ‘conguration menu’ (press key ‘SQ’ (<) for 1 second)
• press key ‘UP’ (5) to locate ‘tools’ and press ‘SQ’ (<)
• press key ‘UP’ (5) to locate ‘Factory reset’ and press ‘SQ’ (<)
• value ‘no’ appears on display, press key ‘UP’ (5) and ‘Yes’ appears
• press key ‘SQ’ (<) to apply the factory reset
• the leds light a round shape while the new conguration is applied
• the start up message appears (‘SEnSor nPn 1.000 kHz’)
• the actual signal input value is displayed
• the instrument is in ‘normal mode’ of operation
19. Error codes and messages
The instrument can show ‘messages’, which are not ‘errors’ and do not
affect the output signal, and do not trigger the ‘On error’ (on.Er) function.
Below is a list of possible ‘messages’.
Table 14 | Messages
Error Description
‘d.oVr’Display overrange. The display value should be higher than the
maximum value that can be displayed.
‘d.udr’Display underrange. The display value should be lower than the
minimum value that can be displayed.
‘-nA-’Function not available. For the actual conguration, the function is
not available.

SERIES I4 · Model I4F
Section INDUSTRIAL . ISOLATED SIGNAL CONVERTERS
www.fema.es 19
20. Precautions on installation
This instrument is warranted against all manufacturing defects for a
period of 36 months, as requested by the European legislation. This
warranty does not apply in case of misuse or accident, and the scope
of the warranty is limited to repair of the instrument, not being the
manufacturer responsible for additional damages or additional costs.
Within the warranty period and after examination by the manufacturer,
the unit will be repaired or substituted when found to be defective.
Extended warranty available at (see section 3)
21. Warranty
This instrument has been designed and veried conforming to the
61010-1 CE Security Regulation, for industrial applications. Installation
of this instrument must be performed by qualied personnel only. This
manual contains the appropriate information for the installation. Using
the instrument in ways not specied by the manufacturer may lead to a
reduction of the specied protection level. Disconnect the instrument
from all external circuits before starting any maintenance and / or
installation action.
The instrument does not have a general switch and will start operation
as soon as power is connected. The instrument does not have protection
fuse, the fuse must be added during installation.
The instrument is designed to be DIN rail mounted, inside a closed
cabinet, protected from direct impacts. An appropriate ventilation of the
instrument must be assured. Do not expose the instrument to excess of
humidity. Maintain clean by using a humid rag and do NOT use abrasive
products such as alcohols, solvents, etc. General recommendations for
electrical installations apply, and for proper functionality we recommend
: if possible, install the instrument far from electrical noise or magnetic
eld generators such as power relays, electrical motors, speed variators,
... If possible, do not install along the same conduits power cables
(power, motor controllers, electrovalves, ...) together with signal and/or
control cables. The use of shielded cables is recommended to prevent
the coupling of environmental electromagnetic noise, connected to earth
only one cable end side. Before proceeding to the power connection,
verify that the voltage level available matches the power levels indicated
in the label on the instrument. In case of re, disconnect the instrument
from the power line, re alarm according to local rules, disconnect the air
conditioning, attack re with carbonic snow, never with water.
Conformity with security regulations EN-61010-1 requires a
closed front cover. There is no need to open the front cover
under normal usage or conguration. The output terminal
prevents the front cover from opening. An open front cover may expose
areas with dangerous voltages. Remove connections with dangerous
voltages before opening. Only to be performed by qualied operators.
Manufacturer FEMA ELECTRÓNICA, S.A.
Altimira 14 - Pol. Ind. Santiga
E08210 - Barberà del Vallès
BARCELONA - SPAIN
www.fema.es - [email protected]
Products I4F
The manufacturer declares that the instruments indicated comply with the
directives and rules indicated below.
Electromagnetic compatibility directive 2014/30/EU
Low voltage directive 2014/35/EU
ROHS directive 2011/65/EU
WEEE directive 2012/19/EU
Security rules EN-61010-1
Instrument Fixed, Permanently connected
Pollution degree 1 and 2 (without condensation)
Isolation Double
Overvoltage category 2
Category of measure CAT-II 300V,
Electromagnetic compatibility rules EN-61326-1
EM environment Industrial
CISPR 11 Instrument Class A & Class B Group 1
For a detailed declaration see section 3:
Barberà del Vallès, April 2023
Xavier Juncà - Product Manager
According to directive 2012/19/EU, electronic equipment
must be recycled in a selective and controlled way at the
end of its useful life.
22. CE declaration of conformity
Check the documentation when you nd this symbol, to know
the nature of a potential danger and actions to prevent it.
Risk of electrical shock. Instrument terminals can be
connected to dangerous voltage.
Instrument protected with double isolation. No earth
connection required.
Instrument conforms to CE rules and regulations.