MCR-f-UI-DC, the programmable MCR frequency
transducer, is a module for displaying and converting
frequencies up to120 kHz. On the input side, all common
frequency generator signals in 2, 3 and 4-wire technology,
and signals from incremental encoders can be collected.
The input impulses are evaluated using period
measurement and are then output by a processor as an
analog voltage or current value to match the measuring
range start and end value entered.
In order to achieve as short as possible reaction times, the
inputs of the frequency transducer have purposely been
designed without a frequency input filter. An automatic
measurement range selection function (autorange) ensures
that the measured value is always displayed with the
optimum resolution. Frequency interferences can, however,
lead to too large a division factor being selected for low input
frequencies. This in turn can result in an erratic output signal
(see "Operation with Disturbed Frequency Input Signals" on
page 6).
In order to stabilize fluctuating input values, a filter function
has been implemented for conversion into the analog output
Make sure you always use the latest documentation.
It can be downloaded at www.download.phoenixcontact.com
A conversion table is available on the Internet at
value. The depth of this filter can be set from 1 to 15 using
the membrane keyboard. The optimum filter depth depends
on the application.
In addition to the analog output, there is also a PNP
transistor switching output with a maximum carrying
capacity of 100 mA, for monitoring functions, for example
(not short-circuit proof).
Specially for rotational speed measurement, it is possible to
both enter the measuring range start and end value in
revolutions per minute (RPM), and to observe the
revolutions in RPM on the LCD (4-pos. + RPM as unit) during
operation.
.
.
This data sheet is valid for all products listed on the following page:
7Operation with Disturbed Frequency Input Signals ..................................................................... 6
7.1Measures to Counter External Influences.......................................................................................................6
7.2If Signal Level > 20 V...................................................................................................................................... 6
7.3If Signal Level > 10 V...................................................................................................................................... 6
8Resetting to Delivery State ................................................................................................................................. 6
10Functions of the Membrane Keypad ........................................................................................... 9
10.1Special Function of the Keys in Edit Mode .....................................................................................................9
11Display on LCD....................................................................................................................................................... 9
11.1Display Within Setting Range .........................................................................................................................9
11.2Displaying the Switching Output................................................................................................................... 10
11.3Messages in Operating Mode ......................................................................................................................10
–switches the supply voltage to terminal SW,
–can carry a load of 100 mA,
–not short-circuit proof
Approval
U PROCESS CONTROL EQUIPMENT FOR
HAZARDOUS LOCATIONS 31ZN
Class I Div 2 Groups A, B, C, D
A) This equipment is suitable for use in Class I, Division 2, G roups A, B , C and
D or non-hazardous locations only.
B) Warning - explosion hazard - substitution of components may
impair suitability for Class 1, Division 2.
C) Warning - explosion hazard - do not disconnect equipment unless power
has been switched off or the area is known to be non-hazardous.
MCR-f-UI-DC
Conformance With EMC Guideline 89/336/EEC And Low Voltage Directive 73/23/EEC
Immunity to Interference According to EN 61000-6-2
Discharge of static electricity (ESD)EN 61000-4-2Criterion B
Electromagnetic HF fieldsEN 61000-4-3Criterion A
Fast transients (burst)EN 61000-4-4Criterion B
Surge voltage capacities (Surge)EN 61000-4-5Criterion B
Conducted interferenceEN 61000-4-6Criterion A
1
2
3
2
2
3
8 kV discharge in air
6 kV contact discharge
10 V/m
Input/output/supply: 2 kV / 5 kHz
Input/output: 2 kV / 42 Ω
Supply: 1 kV / 2 Ω
Input/output/supply: 10 V
Noise Emission According to EN 61000-6-4
Noise emission of housingEN 55011
1
EN 61000 corresponds to IEC 61000
2
Criterion B: Temporary impairment to operational behavior that is corrected by the device itself.
3
Criterion A: Normal operating behavior within the defined limits.
4
EN 55011 corresponds to CISPR11
5
Criterion A: Area of application industry
4
Criterion A
5
100240_en_05PHOENIX CONTACT4
Page 5
4.1Dimensions
110 mm
Figure 1Dimensions
MCR-f-UI-DC
75 mm45 mm
5Features
Membrane keypad
Signal inputs
Figure 2Features of MCR-f-UI-DC
12345678
Reset
Display
Input
ext. Mode
Supply
910111213141516
+8,2V
Namu
Setpoint
Low
r
MCR-f-UI-DC
High
Setpoint
.:
r
N
MCR-f-UI-DC
.-
t
r
A
mC
2814605
+24 V
9
GND
0
DC
DC
DC
SW
!
GND
"
NC
IOUT
$
Zero
FullScale
Input
Analog
Output
Digital
Output
Edit
Switching output
Signal outputs
100240_en_05PHOENIX CONTACT5
Page 6
6Block Diagram
MCR-f-UI-DC
+8,2V
1
Namur
2
IN
fin
3
4
GND 1
NPN
PNP
Dry
Contact
0-10 V
0-20 mA
Figure 3Block diagram
5
6
7
8
NPN
PNP
+15V
Uin
Iin
m
C
A
D
A
D
DC
DC
D
D
7Operation with Disturbed
Frequency Input Signals
7.1Measures to Counter External Influences
–Use shielded conductors.
–Lay cables in an appropriate manner (EMC-compliant).
–Connect terminal 4 (GND 1) along the most direct route
to PE.
+24 V
DC
A
A
9
0
!
"
$
%
&
GND
SW
GND
NC
IOUT
UOUT
GND 2
8Resetting to Delivery State
–Connect the top two pins of the pin strip (nearest
display) with the jumper.
–Terminal 2 is now ready again for the connection of
NAMUR sensors.
7.2If Signal Level > 20 V
–Unplug the jumper located in the module after opening
the side flap. The jumper can be parked temporarily on
one of the three free pins.
–Now route the frequency input signal to the module via
terminal 2. The signal is returned via terminal 4
(GND 1).
–No additional settings are necessary.
7.3If Signal Level > 10 V
–Connect the bottom two pins of the pin strip with the
jumper.
–Now route the frequency input signal to the module via
terminal 2.
–No additional settings are necessary.
100240_en_05PHOENIX CONTACT6
Page 7
9Connection Technology
2-wire DC NAMUR sensor2-wire DC (mechanical contact)
bn
bu
+8,2 V
1
NAMUR
2
fIN
3
4
GND1
NPN
5
PNP
6
+15 V
UIN
7
8
IIN
IN
MCR-f-UI-DC
Alternatively, terminal 1 is also possible instead of terminal 6.
3-wire DC with:
PNP transistor output NPN transistor output
pnp
bn
bu
bk
+8,2 V
1
NAMUR
2
fIN
3
4
GND1
NPN
5
PNP
6
+15 V
UIN
7
8
IIN
C
IN
npn
MCR-f-UI-D
bn
bu
bu
bn
bk
+8,2 V
1
NAMUR
2
fIN
3
4
GND1
NPN
5
PNP
6
+15 V
UIN
7
8
+8,2 V
1
NAMUR
2
fIN
3
4
GND1
NPN
5
PNP
6
+15 V
UIN
7
8
MCR-f-UI-DC
IN
MCR-f-UI-DC
IIN
IN
MCR-f-UI-DC
IIN
PNP transistor with pull-down resistorNPN transistor with pull-up resistor
bn
+15 V
bn
bk
bu
6
3
4
+15 V
GND1
bk
bu
6
3
4
GND1
4-wire DC with:
PNP transistor outputNPN transistor output
pnp
wh
bn
bu
bk
+8,2 V
1
NAMUR
2
fIN
3
4
GND1
NPN
5
PNP
6
+15 V
UIN
7
8
IIN
C
IN
npn
MCR-f-UI-D
wh
bu
bn
bk
+8,2 V
1
NAMUR
2
fIN
3
4
GND1
NPN
5
PNP
6
+15 V
UIN
7
8
IN
IIN
C
MCR-f-UI-D
100240_en_05PHOENIX CONTACT7
Page 8
Incremental encoder with push-pull:
–External supply of signal generator–Supply of signal generator from the module
UB=5-30VDC
UB=0VDC
+8,2 V
1
NAMUR
2
fIN
3
4
GND1
NPN
5
PNP
6
+15 V
UIN
7
8
IIN
15 V/25 mA
IN
MCR-f-UI-DC
+8,2 V
1
NAMUR
2
fIN
3
4
GND1
NPN
5
PNP
6
+15 V
UIN
7
8
IIN
IN
MCR-f-UI-DC
The external supply can also be picked off from terminals
9 +24VDC and 0 GND.
3-way isolation is then no longer provided.
The connection from terminal block 4 GND1 to
terminal block 0 GND is essential!
Incremental encoder with HTL logic:
–External supply of signal generator–Supply of signal generator from the module
MCR-f-UI-DC
UB=24VDC
K1, K2, K0
K1, K2, K0
UB=0V
+8,2 V
1
NAMUR
2
fIN
3
4
GND1
NPN
5
PNP
6
+15 V
UIN
7
8
IIN
IN
MCR-f-UI-DC
15 V/25 mA
K1, K2, K0
K1, K2, K0
U input (direct current voltage)I input (direct current)
+8,2 V
1
NAMUR
2
IN
fIN
3
4
-
+
5
6
7
8
GND1
NPN
PNP
+15 V
UIN
IIN
C
MCR-f-UI-D
-
+
1
2
3
4
5
6
7
8
+8,2 V
1
NAMUR
2
fIN
3
4
GND1
NPN
5
PNP
6
+15 V
UIN
7
8
IIN
+8,2 V
NAMUR
IN
fIN
GND1
NPN
PNP
+15 V
UIN
IIN
IN
MCR-f-UI-DC
MCR-f-UI-DC
100240_en_05PHOENIX CONTACT8
Page 9
MCR-f-UI-DC
C
8
1
5
10Functions of the Membrane
Keypad
0111213141
Setpoint
Low
Setpoint
MCR-f-UI-D
High
Zero
Input
FullScale
ext. Mode
Input
Analog
Output
Digital
Output
Edit
Display
Reset
34567
Figure 4Membrane keypad
Press the key briefly: The output value calculated is displayed.
By pressing the key again, you return to the current input measured value.
Press the key briefly (< 0.sec.): Switches the
module to edit mode for frequency input signals.
Press the key for at least 2 seconds: Switches
the module to edit mode for analog input signals.
Press the keys briefly together (< 0.5 sec.):
+
Switches the module to extended edit mode
Press the keys briefly together: Ends edit
+
mode, without saving any settings that may
have been made.
Adopts the current setting in edit mode and
switches automatically to the next value.
10.1Special Function of the Keys in Edit Mode
In edit mode for pulse input signals and for ana-
+
log input signals, pressing the enter key in
addition to the or key accelerates forward
+
or backward counting.
By releasing the key and then briefly pressing it
again, it is possible to carry out fine adjustments.
11Display on LCD
11.1Display Within Setting Range
Frequency input for NAMUR, 2, 3 and 4-wire
sensors, incremental encoders with push-pull
and HTL output signal and dry contact. Settings
can be made in either Hz or RPM/kRPM [Display: kRM] / MRPM [Display: MRM].
Frequency input for NAMUR sensors with wire
break and short-circuit recognition. Settings
can be made in either Hz/kHz or RPM/kRPM
[Display: kRM] / MRPM [Display: MRM].
Current input 0…20 mA
Voltage input 0…10 V
ON delay of switching output.
(setting range 0…30 sec., default value = 0.00
sec.)
OFF delay of switching output.
(setting range 0…30 sec., default value = 0.00
sec.)
Setting POWER ON delay (switching output)
(setting range 0…30 sec., default value = 1.00
sec.) During this period, the switching output
does not react to events. This function is only of
effect directly after switching on the supply voltage.
Setting the wire-break detection time
(setting range 0.2…10.1 sec., default value =
10.1 sec.)
If no input signal is detected during this period,
"No Input" appears on the display and the outputs behave according to their settings
Setting the end value
(setting range 75…125%, default value =
100%)
Setting the zero point in relation to the previously set
output signal: (setting range -5…+5 mA / -
2.5…+2.5 V;
default value = 0 mA / 0 V)
Setting the division factor from 0.1 to 9999 (default value = 1.0). Slow positioning tasks require
holed coupling halves with multiple divisions
(factor > 1). Measuring the rotational speed of a
motor at the gearbox requires a small division
factor (factor < 1).
100240_en_05PHOENIX CONTACT9
Page 10
MCR-f-UI-DC
Setting the filter depth of the analog output
when using frequencies as input value (setting
range 1...15).
This function can only be configured using
the membrane keyboard.
Setting the analog output value
if the measuring range is fallen below
(setting range 0.00…24.00 mA, or
0.00…12.00 V)
Setting the analog output value
if the measuring range is exceeded
(setting range 0.00…24.00 mA, or
0.00…12.00 V)
Setting the analog output value with wire break
or an input signal that is not available
(setting range 0.00…24.00 mA, or
0.00…12.00 V)
Saving. By pressing the key, the set
parameters are saved.
By pressing the key, the setting mode is interrupted without saving the parameters set.
By pressing the -key, the current settings are
overwritten by the default values. The parameters of the frequency input and analog input are
unaffected.
11.3Messages in Operating Mode
Has fallen below the measuring range.
This message and the current frequency flash
alternately if the frequency falls below the bottom measuring range set.
Measuring range exceeded.
This message and the current frequency flash
alternately if the frequency exceeds the top
measuring range set.
No input signal.
This message flashes for the following reasons:
1. No sensor connected!
2. For NAMUR: a) Short-circuit or b) Wirebreak!
3. Short-circuit frequency <-> GND!
4. No input signal found within the wire-break
detection time set (l.br.time).
11.4Menu Guidance
In edit mode, the arrow points to the function to
be set.
Zero
Input
Full Scale
Input
Analog
Output
Digital
Output
Low
Setpoint
High
Setpoint
11.2Displaying the Switching Output
If "High Setpoint" is exceeded, the transistor
switches to "High",
If "Low Setpoint" is fallen below, it switches to
"Low" (with hysteresis).
If"High Setpoint" is exceeded, the transistor
switches to "Low",
If "Low Setpoint" is fallen below, it switches to
"High" (with
hysteresis)
If "High Setpoint" is fallen below, the transistor
switches to "High".
If "High Setpoint" is exceeded, the transistor
switches to "High".
Transistor is permanently switched (N/C).
Transistor is permanently switched off (N/O).
Between "Low Setpoint" and "High Setpoint",
the transistor switches to "High".
If "Low Setpoint" is fallen below, and
"High Setpoint" is exceeded, the transistor
switches to "High".
100240_en_05PHOENIX CONTACT 10
Page 11
12Menu Flowcharts
+
12.1Configuration of the Frequency Input – Sequence of Menu
Operating mode
Press briefly
f-input
MCR-f-UI-DC
Measuring
range start
Measuring
range end
Analog
output
Switching
output
Bottom
switching
point
Zero
Input
Full Scale
ExampleExample
Zero
Input
ExampleExample
Input
Full Scale
Input
Example
Zero
Input
Example
Full Scale
Input
+
Zero
Input
+
Full Scale
Input
all options
20 - 4 mA
Analog
Output
Digital
Output
Low
Setpoint
4-20mA
20 - 0 mA
0-20mA
5-0V
0-5V
10-0V
all options
ON
ExampleExample
Low
Setpoint
Example
Low
Setpoint
Low
Setpoint
Top switching
ExampleExample
Example
+
point
High
Setpoint
High
Setpoint
High
Setpoint
High
Setpoint
Saving values
Operating
mode
Figure 5Configuration of the frequency input – sequence of menu
100240_en_05PHOENIX CONTACT 11
Page 12
12.2Configuration of the Analog Input – Sequence of Menu
Operating mode
Press for at least 2 seconds
Analog
input
MCR-f-UI-DC
Measuring
range start
Measuring
range end
Analog
output
Switching
output
Bottom
switching
point
Zero
Input
Full Scale
Input
Analog
Output
Digital
Output
Low
Setpoint
Example
Zero
Input
Example
Full Scale
Input
All options
5- 0V
0- 5V
10 - 0 V
0-10V
20 - 4 mA
4-20mA
20 - 0 mA
Example
Low
Setpoint
All options
ON
Example
Low
Setpoint
ExampleExample
Top switching
point
High
Setpoint
High
Setpoint
High
Setpoint
Saving values
Operating
mode
Figure 6Configuration of the analog input – sequence of menu
100240_en_05PHOENIX CONTACT 12
Page 13
12.3Configuration of the Extended Mode – Sequence of Menu
Operating mode
Press briefly
MCR-f-UI-DC
ON delay
OFF delay
POWER ON
delay
Wire break
detection
End value
+
ExampleExample
ExampleExample
ExampleExample
ExampleExample
ExampleExample
ExampleExample
Zero point
Example
Division
factor
Output filter
function
Continued
Figure 7Configuration of the extended mode – Sequence of menu (1)
100240_en_05PHOENIX CONTACT 13
Page 14
Continuation of the Sequence of Menu:
Signal where
the measuring
range is fallen
below
Signal where
the measuring
range is
exceeded
No signal
MCR-f-UI-DC
Save
Do not save
Basic settings
Operating mode
Figure 8Configuration of the extended mode – sequence of menu (2)
100240_en_05PHOENIX CONTACT 14
Page 15
13Example: Configuration Based on a Frequency Input Signal
The module MCR-f-UI-DC has the following functions:
Frequency range: 5…45700 Hz, 3-wire NPN sensor
Output signal: 4…20 mA
Switching behavior: bottom switching point ("High" to "Low") at 15 Hz
top switching point ("Low" to "High") at 20 kHz
ON delay: 10 s
OFF delay: 5 s
Wire-break detection time:1 s
MCR-f-UI-DC
Operating mode
f-input
Measuring
range start
Measuring
range end
Analog
output
Switching
output
Bottom
switching
point
Press briefly
3-wire NPN
Zero
Input
Full Scale
Input
Analog
Output
Digital
Output
Low
Setpoint
Zero
Input
Full Scale
Input
Analog
Output
Digital
Output
Low
Setpoint
Analog
Output
Digital
Output
Digital
Output
Top switching
point
Setpoint
+
High
High
Setpoint
Operating mode
Example
Figure 9Example: configuration based on a frequency input signal
100240_en_05PHOENIX CONTACT 15
Page 16
13.1Continuation of the Configuration Example:
MCR-f-UI-DC
Operating mode
ON delay
OFF delay
Wire break
detection time
Press briefly -> extended operating mode
+
Operating mode
Example
Figure 10Continuation of the configuration example
100240_en_05PHOENIX CONTACT 16
Page 17
14Configuration Software MCR/
PI-CONF-WIN-...
The MCR configuration software is available for the
configuration and visualization of all parameters for the
MCR-f-UI-DC frequency transducer.
The MCR-Software runs under Windows 95®,
Windows 98
®,
Windows NT
®
, Windows ME®,
Windows 2000® and under Windows XP®.
The modules are configured via a serial interface. A label is
also created by the software that can be placed on the
module.
15Application Example: Speed Measurement of a Drive
MCR-f-UI-DC
Figure 11Application example: speed measurement of a drive