Sensor Systems DPSKO Series Manuale utente
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USER MANUAL
DPSKO-xx
Dual axis planarity sensor with relay or open collector output
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BXX-11 02/2008
Index
1 – Working principle……………………. ......................................................................... pg.3
2 – Technical features……............................................................................................... pg.4
3 – Safety…………............................................................................................................ pg.5
4 – Electrical connections............................................................................................... pg.6
5 – Calibration and setting using RS-232 port .............................................................. pg.8
6 – Mounting ..................................................................................................................... pg.14
7 – Disposal........................................................................................................................ pg.15
8 – Precautionary measures, checks and maintenance.............................................. . pg.15
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1 – Working principle
DPSK micro controlled planarity indicator is a digital device capable of:
1. operating as a common planarity indicator, living as an output axis X and Y
planarity, separately over a 360°degrees range;
2. giving as an output X and Y planarity for two half axis each, allowing DPSK to
be used for auto-levelling or other (optional) functions. Zero setting can be
achieved through a dedicated cable (optional) or through RS-232 dedicated
commands (optional).
DPSK shows reference directions for positive and negative X/Y half-axis.
PLASTIC ENCLOSURE
PROGRAMMING CABLE
RS-232 connection
(Rx, Tx and RS-232 Gnd)
SUPPLY CABLE, RELAYS
OUTPUT, PNP OUTPUT and ZERO
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2 – Technical features
2.1 - Relay / open collector planarity control output
Supply voltage = +9 ... +30 Vdc
Max output current (planarity control, relay) = 1.0 A @ 50 °C
Max voltage output (planarity control, relay) = + 24V dc
Max output current (planarity control, axis half-axis, transistor) = 1.0 A @ 50 °C
Supply current max (relay output) = 200 mA
Supply current max (transistor output) = 100 mA
2.1.1 - Annotation 1:
Relay and open collector outputs are protected using 1A built-in self-repairing fuses.
2.2 General features
Angle range: from –20°to +20°each axis;
Resolution: ± 0.1°
Zero point temperature drift: ± 0.002 deg/°C
Temperature working range: from –20 °C to +70 °C
Standard protection grade: IP 66
Standard cable length: 30 cm
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3- Safety
3.1 Protections
Built-in device protection:
A) Supply
• reverse polarity;
• overvoltage.
B) Planarity output (relay):
• short-circuit;
• overvoltage.
C) Axis/half-axis output (transistor):
• short-circuit;
• overvoltage.
D) Axis/half-axis output (relay):
• short-circuit
3.2 Conformity
DPSK conforms to the following EMC standards:
EN 61000 – 6 – 3 : 2002
EN 61000 – 6 – 2 : 2002
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4- Electrical connections
4.1 Preparation
Cable choice
To avoid any dysfunction due to incorrect wiring, device shall be cabled granting
optimal electric insulation of all parts accessible by unspecialised operators (
insulating resistance > 1GΩx cm).
Mounting must avoid improper cable bending, traction, twisting pressing or squeezing
during machine operation.
Cable shall be chosen so to conform device specific application.
Supply:
1,5 mm2cabling under 1,5 m in length
2 mm2if cabling is over 1,5 m in length
Communication:
RS-232 standard cables
Digital input/communication:
0,5 mm2
Digital output/communication:
0,5 mm2 low-power exit
1 mm2high power exit
Some version may not feature all the connections described.
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4.2 Supply
Cable colour Description Function
WHITE Positive supply + 7 ... + 30 Vdc
YELLOW Negative supply Gnd
4.3 Planarity output (Relay)
Cable colour Description Function
BLUE Common relay -
GREEN NC Relay Normal closed
GREY NO Relay Normal open
4.4 Serial RS232 communication
Cable colour Description Function
AMP PIN 2 Rx RS232 Rx to PC connection
AMP PIN 3 Tx RS232 Tx to PC connection
AMP PIN 1 Gnd RS232 Gnd to PC connection
Annotation 2:
RS-232 levels are already shifted to allow direct communication with PC port
COM1 or COM2
4.5 Zero
Cable colour Description Function
BROWN Zero cable (with connector-
protected termination)
Apply positive voltage for 3 to 7
seconds.
Check cable termination after
use for correct insulation.
4.6 PNP transistor output
Cable colour Description Function
PINK PNP output -
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5- Calibration and setting using RS-232 connection
5.1 Zero
Device zero is factory-calibrated. An after-mounting zeroing is preferable in most of
the cases.
Zero can be achieved in two ways:
5.1.1 – using the following RS-232 specific command (via Hyperterminal-like
program):
ZERO < Enter>
5.1.2 – applying a positive voltage to the “zero-cable” (brown cable) for more than 3
seconds and less than 7 seconds.
No LED outputs are available.
Zero is common to both relay function and half-axes setting.
5.2 Relay switching point
Relays switching points are factory-set. Factory settings can be modified using RS-
232 communication with any Hyperterminal-like program.
Please refer to the following commands to set intervention ranges:
5.2.1 MDEGX maximum allowed angle for X axis (related to defined zero).
5.2.2 MDEGX maximum allowed angle for Y axis (related to defined zero).
Both MDEGX and MDEGY can be set between 0°and 20°abs (absolute value: i.e. if
device is set with zero at 5°, 20°-5°= 15°are left to cover working range).
To set switching angle for X axis using MDEGX command please type desired angle
value multiplied by ten (to allow definition of decimal values of the angle):
MDEGX=40 < Enter>
Sets switching point to 4°.
MDEGX=25 < Enter>
Sets switching point to 2.5°
MDEGX=5 < Enter>
Sets switching point to 0.5°.
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5.3 Switching delay interval
Switching delay interval are easily selectable using RS-232 commands between 0.1
and 25.5 seconds. Delays are selectable using RWAIT command (delay before
intervention: waits X seconds to activate alarm) and FWAIT (delay after intervention:
waits X seconds to deactivate alarm).
RWAIT=22 < Enter>
Sets a delay time of 2.2 seconds to activate alarm over axis X or Y.
FWAIT=12 < Enter>
Sets a delay time of 1.2 seconds to deactivate alarm over axis X or Y.
5.4 Configuration using RS-232 protocol
IMPORTANT:
Parameters shall be typed in CAPITAL letters
RS-232 settings are the following:
Communication: 9600 bits/s
Data bit: 8
Parity: none
Stop: 1
Flow control: none
On power-on DPSK sends through RS-232 the following info concerning the device:
• device code;
• HW version;
• SW version;
And waits for the user to send commands.
To ensure the device is operating please press <ENTER> key. If the device is
operating and waiting the answer will be: “SYNTAX ERROR” .
If no returning syntax error message is shown please check connections (both RS-
232 connection and supply voltage connection).
To read the corresponding value of a given parameter the user must type the name
followed by
:
RWAIT:
Gives as an output on the screen the value of RWAIT parameter.
To write the desired value of a given parameter the user must type the name
followed by
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=
And the desired value and pres <ENTER> key
RWAIT=12 <Enter>
Sets RWAIT to 1.2 seconds
If the user gives a parameter an out-of-range value or a wrong name “Syntax error”
will be printed on the screen.
In such a case the user shall press <ENTER>.
5.5 RS-232 parameters table
Parameters for RELAY OUTPUT
Parameter Standard Value Description
CHGREL 255 [0,255] Relay output setting: 0: normally NOT OPERATING; operates after X or Y
switching point is reached 255: normally OPERATING; gets not operating
after X or Y switching point is reached.
RWAIT 1 [1-255]
Delay to activate alarm, from 100 ms to 25.5 seconds
MDEGX 50 [1-200]
Maximum angle for X axis
MDEGY 50 [1-200]
Maximum angle for Y axis
FWAIT 1 [1-255]
Delay to deactivate alarm, from 100 ms to 25.5 seconds
ZERO - - Zeroing
Parameters for OPEN COLLECTOR OUTPUT
Parameter Standard Value Description
CHGOUT 255 [0,255] Relay output setting: 0: normally NOT OPERATING; operates after X or Y
switching point is reached 255: normally OPERATING; gets not operating
after X or Y switching point is reached.
FWAITX 1 [1-255] Delay to deactivate X-axis alarm from 100 ms to 25.5 s
FWAITY 1 [1-255] Delay to deactivate Y-axis alarm from 100 ms to 25.5 s
RWAITX 1 [1-255] Delay to activate X-axis alarm from 100 ms to 25.5 s
RWAITY 1 [1-255] Delay to activate Y-axis alarm from 100 ms to 25.5 s
MXN 10 [1-200] Maximum angle for X- half-axis
MXP 10 [1-200] Maximum angle for X+ half-axis
MYN 10 [1-200] Maximum angle for Y- half-axis
MYP 10 [1-200] Maximum angle for Y+ half-axis
Parameters for Angle range Hysteresis setting (deactivates/activates alarm)
Parameter Standard Value Description
ISTRELE 1 [0-200] Angular Hysteresis for relay output (managed by MDEGX e MDEGY)
ISTSEMI 1 [1-200] Angular Hysteresis for PNP output (managed by MXN, MXP, MYN e MYP)
Angular values for hysteresis setting (ISTRELE and ISTSEMI) are expressed in 0.1°. Angular
Hysteresis represents the minimum angle (over/under the switching point) able to activate/deactivate
alarm.
Indice
