Lika LD300 User manual

LD30x
User's manual
LD300 – LD301 – LD302 - LD303
Description
LD30x is an incremental multi-function display with impulse inputs for
connecting incremental encoders or sensors. The user's interface is a multi-
function keyboard fitted with 3 keys and a -segment and 6-digit LED display.
Model LD300 is a display only version; model LD301 provides an analogue
output in addition; model LD302 further offers two presets and two switching
outputs; finally model LD303 is equipped with a RS-232/RS-485 serial interface
for connection with a PC.
Table of contents
1 - Safety summary
2 - Identification
3 - Mounting instructions
4 - Electrical connections
5 - Operating the front keys
6 - Operator menu
- Set up procedure
8 - Special functions
9 - Parameters list
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1 Safety summary
1.1 Safety
•Always adhere to the professional safety and accident prevention
regulations applicable to your country during device installation and
operation;
•installation and maintenance operations have to be carried out by qualified
personnel only, with power supply disconnected and stationary mechanical
parts;
•device must be used only for the purpose appropriate to its design: use for
purposes other than those for which it has been designed could result in
serious personal and/or the environment damage;
•high current, voltage and moving mechanical parts can cause serious or
fatal injury;
•warning ! Do not use in explosive or flammable areas;
•failure to comply with these precautions or with specific warnings
elsewhere in this manual violates safety standards of design, manufacture,
and intended use of the equipment;
•Lika Electronic s.r.l. assumes no liability for the customer's failure to comply
with these requirements.
1.2 lectrical safety
•Turn OFF power supply before connecting the device;
•connect according to explanation in section ”4 - Electrical connections”;
•in compliance with 2004/108/EC norm on electromagnetic
compatibility, following precautions must be taken:
- before handling and installing the equipment, discharge
electrical charge from your body and tools which may come in touch with
the device;
- power supply must be stabilized without noise; install EMC filters on
device power supply if needed;
- always use shielded cables (twisted pair cables whenever possible);
- avoid cables runs longer than necessary;
- avoid running the signal cable near high voltage power cables;
- mount the device as far as possible from any capacitive or inductive noise
source; shield the device from noise source if needed;
- minimize noise by connecting the unit to ground (GND). Make sure that
ground (GND) is not affected by noise. The connection point to ground can
be situated both on the device side and on user’s side. The best solution to
minimize the interference must be carried out by the user.
1.3 Mechanical safety
•Install the device following strictly the information in the section “3 -
Mounting instructions”;
•do not disassemble the unit;
•do not tool the unit;
•delicate electronic equipment: handle with care; do not subject the device
and the shaft to knocks or shocks;
•respect the environmental characteristics of the device.
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LD30x
2Identification
Device can be identified through the ordering code and the serial number
printed on the label applied to its body. Information is listed in the delivery
document too. Please always quote the ordering code and the serial number
when reaching Lika Electronic s.r.l. for purchasing spare parts or needing
assistance. For any information on the technical characteristics of the product,
refer to the technical catalogue.
3 Mounting instructions
WARNING
Mount the unit with power supply disconnected.
Mount the display into the provided cut-out (approx. 91 x 44 mm) without
panel clips.
Install panel clips on the display housing and screw until fixed.
96,0 (3.780’’)
110,0 (4.331’’)
44,0 (1.732)
10,0
(.394)
8,0
(.315)
91,0 (3.583)
9,0 (.345) 129,0 (5.079)
140,5 (5.531)
48,0 (1.890)
Panel cut out: 91 x 44 mm (3.583 x 1.732’’)
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LD30x
4 lectrical connections
WARNING
Turn OFF the power supply before connecting the device.
LD300
Display unit only
Special versions with TTL inputs
(option -M8-) provide a +5V aux.
output on terminal , instead of
+24V
Units with option -P4- provide
24 / 42 VAC power supply instead
of 115 / 230 VAC (option -PM-)
GND 17-30VCD IN
1 2 3 4 5 6 7 8 9 10
INPUT A INPUT B RESET (C) GND 24VDC OUT
NC
PE
GND 230VAC 115 VAC 0 VAC
NC NC
Only when you like
to tie internal GND
to earth potential
LD301
Display unit with
analogue output
Special versions with TTL inputs
(option -M8-) provide a +5V aux.
output on terminal , instead of
+24V
Units with option -P4- provide
24 / 42 VAC power supply instead
of 115 / 230 VAC (option -PM-)
LD302
Display unit with 2
presets and transistor
outputs
Special versions with TTL inputs
(option -M8-) provide a +5V aux.
output on terminal , instead of
+24V
Units with option -P4- provide
24 / 42 VAC power supply instead
of 115 / 230 VAC (option -PM-)
LD303
Display unit with serial
interface
Special versions with TTL inputs
(option -M8-) provide a +5V aux.
output on terminal , instead of
+24V
Units with option -P4- provide
24 / 42 VAC power supply instead
of 115 / 230 VAC (option -PM-)
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LD30x
4.1 Power supply
The unit accepts DC power supply from 1 V to 30 V when using terminals 1
and 2 and the consumption depends on the level of the supply voltage (typically
between 80 mA and 150 mA plus current taken from aux. output).
For AC supply, terminals 0 VAC, 115 VAC or 230 VAC can be used. The total AC
power consumption is .5 VA.
Units with option LD30x-P4-... are designed for either 24 VAC or 42 VAC power
supply and the screw terminals are marked correspondingly.
The pictures in the previous page show a dotted line for grounding to PE. This
connection is not necessary, neither for safety nor for EMC. However, with
specific applications, it can be useful to ground the common potential of all
signal lines.
NOT
When using this earthing option, please note that:
1. all terminals and potentials marked “GND“ will be earthed;
2. you should avoid multiple earthing, e.g. when you use a DC power
supply where the Minus is already connected to earth etc. Especially
under poor earthing and grounding conditions, multiple earth
connections may cause serious EMC problems.
4.2 Aux. voltage output
Terminal provides a 24 VDC / 120 mA max. auxiliary output for supply of
sensors and encoders. Units with TTL inputs (option -M8-) provide a 5 VDC / 120
mA auxiliary output on terminal instead.
4.3 Inputs A, B and Reset
In the basic set-up menu (see section “ .1 Basic settings” on page 14) these
inputs can be configured to PNP (switch to +) or to NPN (switch to -). This
configuration is valid for all three inputs at a time.
The factory setting is always PNP.
With standard units the input level is always HTL (Low < 2.0 V and High > 9.0 V).
Units equipped with option -M8- provide TTL / CMOS) level (Low <0.8 V and
High >3.5 V).
NOT
1. Independently of your setting, all functions of the unit are “active HIGH“
and the unit triggers to positive transitions (rising edge).
2. With NPN setting please be aware that an open or unused RESET input
is HIGH. Therefore the unit will be kept in a continuous RESET state and
will not work, unless you tie the Reset line to GND (terminal 1 or 6).
3. When you use 2-wire NAMUR type sensors, please select NPN, connect
the negative wire of the sensor to GND and the positive wire to the
corresponding input.
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Typical input circuit (standard version with HTL inputs):
PNP
4,7k
GND GND
24V int.
Input
4,7k
GND
Input
24V int.
NPN
The counting inputs A and B are designed for input frequencies up to 100 kHz
(with all counter modes) and up to 25 kHz (with all other operating modes).
The minimum pulse duration on the Reset input must be 500 µsec. (maximum
frequency 1 kHz)
All inputs are designed to receive impulses from an electronic impulse source.
Should you exceptionally need to use mechanical contacts, please connect an
external capacitor between GND (-) and the corresponding input (+). With a
capacity of 10 µF, the maximum input frequency will reduce to 20 Hz and
miscounting due to contact bouncing will be eliminated.
4.4 Adjustable analogue output (LD301 model only)
A voltage output is available, operating in a range of 0 … +10 V or –10 V ... +10
V according to setting. At the same time, a current output 0/4 – 20 mA is
available. Both outputs refer to the GND potential and the signal polarity
changes with the sign in the display. The outputs provide a 14-bit resolution
and the response time at each change of the measuring value is approx. msec.
(fin > 143 Hz).
The maximum current of the voltage output is 2 mA and the load on the current
output can vary between 0 and max. 2 0 ohms.
4.5 Optocoupler / transistor outputs (LD302 model only) *
Outputs provide programmable switching characteristics and are potential-free.
Please connect terminal 8 (COM+) to the positive potential of the voltage you
want to switch (range 5V ... 30V). You must not exceed the maximum output
current of 150 mA. If you switch inductive loads, please provide filtering of the
coil by means of an external diode.
Opto Opto 33 R
(8)
(9)
(10)
Com (5 ... 35 V)
Output 1 (max. 150 mA)
Output 2 (max. 150 mA)
33 R
Preset 2 Preset 1
* For relay outputs please refer to model LD305.
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4.6 Serial RS-232 / RS-485 interface (LD303 model only)
Ex factory the unit is set to RS-232 communication. This setting can be changed
to RS-485 (2-wire) by means of an internal DIL switch. To access the DIL switch,
please remove the screw terminal connectors and the back panel. Then pull the
board to the rear to remove the PCB from its housing.
ON DIP
DIL-Swit h
Removal of the back panel Location of the DIL switch
RS-232
ON
8
9
10
RxD
TxD
GND
RS-485
ON
8
9
10
A (+)
B (-)
GND
WARNING
1. Never set DIL switch positions 1 and 2 or DIL switch positions 3 and 4 to
ON at the same time!
2. After setting the switch, shift the print carefully back to its housing, in
order to avoid damaging the front pins for connection with the front
plate.
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5 Operating the front keys
For set-up and other operations the unit is fitted with three front keys which
will be denominated as follows in the next pages:
NT R
(Input)
S T
(Setting)
CMD
(Command)
The functions of the keys are depending on the actual operating state of the
unit.
The following three operating states apply:
•Normal display state (see section “5.1 Normal display state” on page 8)
•Set-up state (see section “5.2 Selection and setting of parameters” on
page 9)
- Basic set-up (see section “ .1 Basic settings” on page 14)
- Operational parameters set-up (see section “ .2 Operational
parameters” on page 16)
•Teach operation (see section “5.3 Teach operation” on page 10)
5.1 Normal display state
NOT
You can only change over to other operation states while the unit is in display
state.
Change over to Key operation
Basic set-up Keep NT R and S T down simultaneously for 3 seconds
Operational
parameter set-up Keep NT R down for 3 seconds
Teach operation Keep CMD down for 3 seconds
The CMD key is only used to execute the Teach procedure with linearisation. For
more details please refer to sections “8.1 Linearisation“ and “8.2 Manual input or
„teaching“ of the interpolation points” on page 30.
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5.2 Selection and setting of parameters
5.2.1 Selecting a parameter
The NT R key will scroll through the menu. The S T key allows to select the
corresponding item and change the setting or the numeric value. After this, the
selection can be saved by pressing the NT R key again, which automatically
changes over to the next menu item.
5.2.2 Changing parameter settings
With numerical entries, at first the lowest digit will blink. When keeping the S T
key continuously down, the highlighted digit will scroll in a continuous loop
from 0 to 9 and again from 0 to 9; and so on. After releasing the S T key, the
actual value will remain and the next digit will be highlighted (blink). This
procedure allows setting all digits to the desired values. After the most
significant digit has been set, the low order digit will blink again and you can
make corrections if necessary.
With signed parameters, the high order digit will scroll from “0” to "9" (positive)
followed by “-“ and "-1" (negative).
5.2.3 Saving settings
To save the actual setting, press the NT R key, which will also automatically
scroll forward the menu.
NOT
At any time the unit changes from programming mode to normal display
operation, when you keep the NT R key down again for 3 seconds at least.
5.2.4 Time-out function
A “time-out” function will automatically terminate every menu level, when for a
break period of 10 seconds no key has been pressed. In this case, all changes
which have not been confirmed by NT R yet would remain unconsidered.
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5.3 Teach operation
NOT
The time-out function remains disabled during all Teach operations.
Key Function
NT R key will terminate or abort any Teach operation in
progress
S T function is fully similar to normal set-up operation
CMD key will save the display value in the register and
change over to the next interpolation point
For further details on the Teach procedure see section “8.2 Manual input or
„teaching“ of the interpolation points” on page 32.
5.4 Setting all registers to “Default“ values
At any time you can return all settings to the factory default values.
WARNING
This action will reset all parameters to factory default values and your own
settings will be lost. You will have to repeat your individual set-up procedure.
Factory default values are shown in the subsequent parameter tables (see
section “Parameters list” on page 34).
To reset the unit to default values:
•switch power off;
•press the NT R key on the front;
•keep NT R down while you power up again.
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