11
Operating instructions
Electronic display counter
521K, 522, 523 and 524
1.1 Safety instructions and warnings
Only use this display
– in a way according to its intended
purpose
– if its technical condition is perfect
– adhering to the operating
instructions and the general
safety instructions.
1.2 General safety instructions
1. Before carrying out any installation or maintenance work, make sure that the power supply
of the digital display is switched off.
2. Only use this digital display in a way according
to its intended purpose:
If its technical condition is perfect.
Adhering to the operating instructions and the
general safety instructions.
3. Adhere to country or user specific regulations.
4. The digital display is not intended for use in
areas with risks of explosion and in the
branches excluded by the standard EN 61010
Part 1.
5. The digital display shall only operated if it has
been correctly mounted in a panel, in accordance with the chapter “Technical features”.
1.3 Use according to the intended
purpose
The digital display may be used only as a panelmounted device. Applications of this product may
be found in industrial processes and controls, in
manufacturing lines for the metal, wood, plastics,
paper, glass, textile and other processing industries.
Over-voltages at the terminals of the digital display must be kept within the limits in Category II
If the digital display is used to monitor machines
or processes in which, in case of a failure of the
device or an error made by the operator, there
might be risks of damaging the machine or causing accidents to the operators, it is your responsibility to take appropriate safety measures.
1.4 Description
521K
Please note: Read first chapter 2 of 524K and
go on on page 2.
522K
Please note: Read first chapter 2 of 524K and
go on on page 4.
523K
Please note: Read first chapter 2 of 524K and
go on on page 6.
524K
524K is a multipurpose device. Depending on
the programmed basic function, the device operates like
• the pulse counter
521K (see page2) or
• the frequency meter
522K (see page 4) or
• the time meter
523K (see page 6)
2. Setting of the operating parameters
a. Press both front side keys keys and switch on
the supply voltage or, if the supply voltage is
already on, press both keys simultaneously
during 5 s.
b. The display shows
c. After releasing the keys, the display shows
c1.Hold the left key pressed and press the right
key to leave the programming operation.
!
Kessler-Ellis Products
10 Industrial Way East, Eatontown, NJ 07724
990093 08/08/06
22
c2.Press the right key to switch to
.
d. Hold the left key pressed and press the right
key to switch to the first parameter.
e. After releasing the keys, the display alternates
between the menu title and the current menu
item setting. After pressing any key, only the
menu item setting is displayed.
f. Pressing the right key, the menu item setting
will be switched to the next value.
If figures are to be input (e.g. when setting the
scaling factor), select first the decade using
the left key, and then set the value using the
right key.
g. Hold the left key pressed and press the right
key to switch to the next menu item.
h. The last menu title ”EndPro” allows, when
selecting “Yes”, to exit the programming menu
and to take over (store) the new values. If
“no” is selected, the programming routine is
repeated, the latest values set remaining
active. They can now be checked again or
modified.
3. Programming routine
The first menu item is the selection of the basic
operating mode, which determines the functions
of the device.
Operating mode pulse
counter. Continued in point
4. of
521K on page 2
Operating mode frequency
meter. Continued in point 4.
of
522K on page 4
Operating mode time meter.
Continued in point 4. of
523K on page 6
Pulse counter/Position indicator
521K
(524K: Operating mode pulse counter)
1. Description
•
6-digit display counter with SET/RESET-function
• Red LED display, character height 8 mm
• Display range from -19 999 to 999 999
• Leading zeros suppression
• Programming via two setting keys on the front
side
• During programming, the display guides the
user with text prompts
• Counter operating modes:
Count input INP A + count direction input
INP B (Cnt.Dir)
Differential count INP A – INP B (up.dn)
Totalizing INP A + INP B (up.up)
Count Up/Down INP A 90° INP B x 1 (quAd)
Count Up/Down INP A 90° INP B x 2 (quAd 2)
Count Up/Down INP A 90° INP B x 4 (quAd 4)
• Optional optocoupler output
2. Inputs
INP A
Dynamic count input.
INP B
Dynamic count input.
SET/RESET
Dynamic SET/RESET input. Linked in parallel to
the red SET/RESET key. Resets the counter to
the predefined setting value.
3. Optocoupler output (optional)
Active if count value < 0. Simple preset counter
can be realized, when using subtract mode.
4. Programming routine
The programmable parameters of the device are
described below, in the order in which they can
be set. The device is fully programmed after one
pass of the routine.
The first values stated correspond to the factory
settings
33
4.1 Polarity of the inputs
npn: switching for 0 V
pnp: switching for +U
B
4.2 Switching on the 30 Hz filter (INP A, INP B)
30 Hz filter off (f
max
)
30 Hzfilter on
Count input and count
direction input
INP A: Count input
INP B: Count direction input
Differential input
IINP A: count input adding
INP B: count input subtract-
ing
Totalizing
INP A: count input adding
INP B: count input adding
Quadrature input
INP A: count input 0°
INP B: count input 90°
Quadrature input with pulse
doubling
INP A: count input 0°
INP B: count input 90°
Each pulse edge of INP A
will be counted
Quadrature input with pulse
quadrupling
INP A: count input 0°
INP B: count input 90°
Each pulse edge of INP A
and INP B will be counted.
4.3 Input mode
4.4 Multiplying factor
It can be set from 00.0001
up to 99.9999.
The decimal point is set to
4 decimal places.
„0“ is not accepted!
4.7 SET/RESET Mode
manual reset via the red
SET/RESET key and
electrical reset via the
SET/RESET input
no reset (red SET/RESET
key and SET/RESET input
locked)
only electrical reset via the
SET/RESET input
only manual reset via the
red SET/RESET key
4.6 Decimal point
The decimal point defines
the way of displaying the
count values. It does not
affect counting.
0 no decimal place
0.0 one decimal place
0.00 two decimal places
0.000
three decimal places
It can be set from 00.0001
up to 99.9999.
The decimal point is set to
4 decimal places.
„0“ is not accepted!
4.5 Dividing factor
The filter provides input
damping*
* where bounce occurs, e.g. with contacts
44
4.9 End of programming
The programming routine
is repeated once more.
The values set until now
can be checked and modified.
The programming routine
wil be left and all values
set will be stored as new
parameters.
Afterwards the device is
ready for operation.
4.8 SET value
The device will be set to
the set point by pressing
the red SET/RESET key
or activating the
SET/RESET input.
SET value -199999...
999999 (number of decimal places depends on
the decimal point option)
Tachometer/Frequency meter
522K
(524K: Operating mode frequency meter)
1. Description
• 6 digit frequency meter
• Red LED display, character height 8 mm
• Display range from 0 to 999 999
• Leading zeros suppression.
• Programming via two setting keys on the front
side
• During programming, the display guides the
user with text prompts
• Value conversion and display in 1/s or 1/min
• Optional optocoupler output
2. Inputs
INP A
Dynamic count input.
3. Optocoupler output (optional)
Active at f=0. Can be used e.g. to activate a „No
operation“ lamp.
4. Programming routine
The programmable parameters of the device are
described below, in the order in which they can
be set. The device is fully programmed after one
pass of the routine.
The first values stated correspond to the factory
settings
4.1 Polarity of the inputs
npn: switching for 0 V
pnp: switching for +U
B
For programming the decimal point see 4.6
55
4.3 Multitplying factor
It can be set from 00.0001
up to 99.9999.
The decimal point is set to
4 decimal places.
„0“ is not accepted!
4.5 Decimal point
The decimal point defines
the resolution in the
selected measuring range
1/min or 1/sec
0 no decimal place
0.0 one decimal place
0.00 two decimal places
0.000
three decimal places
4.2 Switching on the 30 Hz filter
30 Hz filter off (f
max
)
30 Hzfilter on
It can be set from 00.0001
up to 99.9999.
The decimal point is set to
4 decimal places.
„0“ is not accepted!
4.4 Dividing factor
4.6 Display mode
Value conversion and
display in 1/s
Value conversion and
display in 1/min
4.7 Max. time to wait until „0“ is displayed
This parameter indicates, how long it takes, when
measuring is active, until „0“ is displayed.
Max. time to wait 00.1 s
(min. value)
Max. time to wait 99.9 s
4.8 End of programming
The programming routine
is repeated once more.
The values set until now
can be checked and modified.
The programming routine
wil be left and all values
set will be stored as new
parameters.
Afterwards the device is
ready for operation.
The filter provides input
damping*
* where bounce occurs, e.g. with contacts
66
Start/Stop via Inp B.
counting while Inp B
(Gate) not active or open
Start/Stop via Inp B.
counting while Inp B (Gate)
active (High level with
pnp; Low level with npn)
Count
Start/Stop via
INP B
(LOW-HIGH edge with
pnp; HIGH-LOW edge
with npn). Every active
edge changes the counter
status.
Count start via INP A,
stop via INP B. (LOWHIGH edge with pnp;
HIGH-LOW edge with
npn)
4.3 Input mode
4.1 Polarity of the inputs
4.2 Switching on the 30 Hz filter (INP A, INP B)
30 Hz filter off
Start/Stop inputs not
damped
30 Hz filter on
Start/Stop inputs damped
for use with mechanical
switches.
Time meter 523K
(524K: Operating mode time meter)
1. Description
• 6 digit time meter with SET/RESET function
• Red LED display, character height 8 mm
• Display range from 0 to 999 999
• Leading zeros suppression.
• Operation indicator: the decimal point of the
lowest digit blinks while the count is active.
• Programming via two setting keys on the front
side
• During programming, the display guides the
user with text prompts
• Time meter operating modes
– Counting while INP B is inactive (GAtE.Lo)
– Counting while INP B is active (GatE.hi)
– Count Start/Stop with INP B edge (Inb.Inb)
– Count Start with INP A edge, count Stop with
INP B edge (InA.Inb)
• Counting ranges h; min; s; h.min.s
• Optional optocoupler output
2. Inputs
INP A
Start input (depending on the input mode chosen)
INP B
Start/Stop or gate input (depending on the input
mode chosen)
SET/RESET input
Dynamic SET/RESET input. Linked in parallel to
the red RESET key. Resets the counter to the
predefined setting value.
3. Optocoupler output (optional)
On active counting the output alternates at a frequency of 1 Hz between active and inactive.
4. Programming routine
The programmable parameters of the device are
described below, in the order in which they can
be set. The device is fully programmed after one
pass of the routine.
The first values stated correspond to the factory
settings
77
Time unit: seconds (accuracy depending on position of the decimal point*)
Time unit: minutes (accuracy depending on position of the decimal point*)
Time unit: hours (accuracy depending on position
of the decimal point*)
Time units:
Hours:Minutes:Seconds
(decimal point setting is
ignored)
4.4 Operating mode
*0, 0.1, 0.01, 0.001 means: time measurement in
0, 0.1, 0.01, 0.001 time units
4.5 Decimal point
The decimal point defines
the resolution of the programmed time unit.
0 1
0.0 1/10 (0,1)
0.00 1/100 (0,01)
0.000 1/1000 (0,001)
4.6 SET/RESET mode
manual reset via the red
SET/RESET key and
electrical reset via the
SET/RESET input
no reset (red SET/RESET
key and SET/RESET
input locked)
only electrical reset via
the SET/RESET input
only manual reset via the
red SET/RESET key
4.8 End of programming
The programming routine
is repeated once more.
The values set until now
can be checked and modified.
The programming routine
wil be left and all values
set will be stored as new
parameters.
Afterwards the device is
ready for operation.
4.8 SET value
The device will be set to
the set point by pressing
the red SET/RESET key
or activating the
SET/RESET input.
SET value 0 ...999 999 or
99.59.59 (number of decimal places depends on
the decimal point option)
5. Technical data
Supply voltage
DC power supply: 10 ... 30 V DC/max. 40 mA
with inverse-polarity protection
Display: 6 digits, red 7 segment
LED display, height 8 mm
Data retention: EEPROM
Polarity of the inputs:
Programmable, npn or pnp
for all inputs
Input resistance:
appr. 5 kOhm
Count frequency 521K:
Power supply DC:
24 V 12 V 10 ...30 V
Input level: Standard 5V
typ. Low Level: 2,5 V 2,0 V 1,0 V
typ. High Level: 22,0 V 10 V 4,0 V
Fmax*: kHz kHz kHz
CntDir 60 20 8
UpDown 25 15 8
Up.Up 25 15 8
Quad1 25 15 8
Quad2 25 15 8
Quad4 15 15
Count frequency 522K:
Frequency measurement
Accuracy <0.1 %
Measuring principle:
< 38 Hz: period measurement
> 38 Hz: gating time measurement
gating time 26,3 ms
Power supply DC: 24 V 12 V 10 ...30 V
Input level: Standard 5V
typ. Low Level: 2,5 V 2,0 V 1,0 V
typ. High Level: 22,0 V 10 V 4,0 V
Fmax*: kHz kHz kHz
Tacho 60 20 8
Counting ranges 523K:
Seconds 0.001 s ... 999 999 s
Minutes 0.001min ... 999 999 min
Hours 0.001 h ... 999 999 h
h.min.s 00 h 00 min 01 s
... 99 h 59 min 59 s
Accuracy <50 ppm
Minimum pulse length for the Reset input:
5 ms
Input sensitivity:
Standard sensitivity:
Low: 0 ... 0,2 x UB [V DC]
High: 0,6 x UB ... 30 V DC
5 V sensitivity: Low: 0 ... 2 V DC
High: 4 ... 30 V DC
Pulse shape: any*, Schmitt-Trigger inputs
Optocoupler output (optional):
NPN optocoupler with open collector and open
emitter; max. switching performance:
30 V DC/10 mA
* at maximum frequency square wave pulses 1:1
Ambient temperature:
–20 ...+65 °C
Storage temperature:
–25 ... +70 °C
EMC:
In compliance with the EC Directive 2004/108/EEC
Noise emission EN 61 000-6-3
EN 55 011 Class B
Noise immunity EN 61 000-6-2
Housing:
For front panel mounting: 48 x 24 mm
acc. to DIN 43700, RAL7021, dark grey
Weight: appr. 50 g
Protection: IP 65 (front)
Cleaning:
The front of the units is to be cleaned only with a
soft wet (water !) cloth.
6. Terminal assignment
without optocoupler
1 10 ... 30 V DC
2 0 V GND
3 INP A
4 INP B (522K: n.c.)
5 SET/RESET (522K: n.c.)
with optocoupler
1 10 ... 30 V DC
2 0 V GND
3 INP A
4 INP B (522K: n.c.)
5 SET/RESET (522K, n.c.)
6 Emitter
7 Collector
7. Delivery includes:
1 Digital display
1Panel mounting clip
1 Bezel for screw mounting,
panel cut out 50 x 25 mm
1 Bezel for clip mounting,
panel cut out 50 x 25 mm
1 Seal
1 Operating instructions
99
8. Dimensions:
Panel cut-out:
22.2+0,3 x 45+0,6 mm
Front bezel
Counter sinking Af3, DIN 74
1
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