halstrup-walcher PUC 28 Instruction Manual

Process monitoring device for clean rooms
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Document 7100.004424 Version 1.0 12/2011
______________________________________________________________
Instruction Manual PUC 28
Process monitoring device
for clean rooms
halstrup - walcher GmbH
Stegener Straße 10
D-79199 Kirchzarten
Tel.: +49 (0) 76 61/39 63-0
Fax: +49 (0) 76 61/39 63-99
E-Mail: info@halstrup-walcher.com
Internet: www.halstrup-walcher.com

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Summary of Contents for halstrup-walcher PUC 28

  • Page 1 ______________________________________________________________ Instruction Manual PUC 28 Process monitoring device for clean rooms halstrup - walcher GmbH Stegener Straße 10 D-79199 Kirchzarten Tel.: +49 (0) 76 61/39 63-0 Fax: +49 (0) 76 61/39 63-99 E-Mail: info@halstrup-walcher.com Internet: www.halstrup-walcher.com Document 7100.004424 Version 1.0 12/2011...
  • Page 2: Table Of Contents

    Instruction Manual PUC 28 Table of Contents: 1 Validity and purpose of the instruction manual ..............4 2 Safety precautions ......................... 5 2.1 Appropriate use ........................ 5 2.2 Shipping, assembly, electrical connections and start-up ..........5 2.3 Troubleshooting, maintenance, repairs, disposal ............. 5 2.4 Symbols ...........................
  • Page 3 7.2 Terminating resistors...................... 38 7.3 Modules ......................... 39 7.4 Setting the parameters of the PUC 28 as a Profibus slave ..........41 7.5 Assignment of the Profibus connector ................42 8 Adjusting the PUC 28 [ TEACH ] ..................43 8.1 Adjusting the internal pressure transmitter ..............
  • Page 4: Validity And Purpose Of The Instruction Manual

    Instruction Manual PUC 28 1 Validity and purpose of the instruction manual This instruction manual applies to the PUC 28 starting with software version 3.6. The instruction manual explains the operation and handling of the process monitoring device. Improper use of this device or failure to follow these instructions may cause injury to people or equipment damage.
  • Page 5: Safety Precautions

    2 Safety precautions 2.1 Appropriate use The PUC 28 is used to test pressure, temperature and humidity. Always observe the operating requirements — particularly the permissible supply voltage — indicated on the rating plate and in the “Technical data” section of this manual.
  • Page 6: Symbols

    Instruction Manual PUC 28 2.4 Symbols This instruction manual uses the following symbols to emphasize references to the operation and hazards when using the system: WARNING! This warns you of a potential hazard that could lead to bodily injury up to and including death if the corresponding instructions are not followed.
  • Page 7: Device Description

    The PUC 28 can be supplied with a Profibus DP interface for connection to the central building control system. In this case, the PUC 28 is integrated into the Profibus as a slave. It is possible to read all values of the PUC via the Profibus or to use the PUC as a display and an evaluation device in that the process signals (Pressure/IN 1/IN 2) are not provided by way of the internal pressure sensor or the analogue inputs but rather via the Profibus.
  • Page 8: Cyclic Zero-Point Calibration

    In this case, please wait a few seconds until the end of the calibration procedure (e.g., confirmation of an alarm). If the PUC 28 has an RS232 or Profibus DP interface, the cyclic calibration can be replaced by a calibration command as an alternative. This ensures that no measured values are lost during critical process phases because of a calibration procedure.
  • Page 9: Display And Controls

    The process monitoring device has an LCD display that can show three measured values. The integrated keys are used to confirm alarms and for the menu-driven setting of the parameters for the PUC 28. Functions are dynamically assigned to the keys.
  • Page 10: Manual Zero-Point Calibration

    3.6 Re-Calibration The device variant PUC 28/K has an additional pair of pressure input ports available at the front side, which can be used to re-calibrate the device if required. This function can only be called out of the main menu, therefore it is password protected (see section 5 entitled “Setting...
  • Page 11 Common Relay 2 RL2_NC Normally closed contact Table 2: Terminal assignment, relay connector (in some variants of the PUC 28 the relay contacts and therefore also the relay connector are not present) Pressure input port at rear side Description (input for measurement)
  • Page 12: Assembly

    Terminal assignment: see section 7.5 entitled “Assignment of the Profibus connector” The PUC 28 variants with 9-pole D-SUB-jack differs to that effect, that the jack is either directly integrated in the housing or that it is located at the end of a flying leads cable which is lead out of the housing between both terminal connectors.
  • Page 13: Setting The Parameters

    “0000”. The password may be changed in the menu item “New password”. You may exit the menu at any time using the Menu key. If no key is pressed for about 2 minutes, the PUC 28 automatically returns to the display mode. If you exit the menu and call it again within 2 minutes, the password is not requested again.
  • Page 14: Abbreviations Used

    Instruction Manual PUC 28 Scroll once up to mark the next submenu LANGUAGE item [ SETTINGS / NEW PASSWD ] Open the “New password” submenu item NEW PASSWD using “Enter” NEW PASSWD Increase the number to 2 by scrolling up...
  • Page 15: Basic Settings [ Settings ]

    Instruction Manual PUC 28 5.2 Basic settings [ SETTINGS ] This menu branch contains the basic settings of the PUC 28. 5.2.1 Language [ SETTINGS / LANGUAGE ] This submenu is used to select the display language. Parameter Range of...
  • Page 16: External Sensors (In1 And In2) [ Settings / Conf. Extern ]

    5.2.4 External sensors (IN1 and IN2) [ SETTINGS / CONF. EXTERN ] External sensors may be connected to the inputs IN1 and IN2. The parameter informs the PUC 28 as to which sensor is connected to the corresponding input. Parameter...
  • Page 17: Signal [ Settings / Signal ]

    Instruction Manual PUC 28 5.2.6 Signal [ SETTINGS / SIGNAL ] This submenu is used to specify the type for the analogue pressure output signal and the analogue input signals IN1 and IN2 to the connected sensor. Input/output Parameter description...
  • Page 18: Delete Re-Calibration [ Settings / Undo Teach ]

    Profibus interface (for devices with Profibus DP interface) will also be initialized. 5.3 Scaling and limits [ VALUES ] The PUC 28 is adjusted for the sensors used and the limits set for the alarm signals in the “VALUES” menu.
  • Page 19: Scaling [ Values / Scale ]

    5.3.2 Limits [ VALUES / WARNING ] The PUC 28 monitors the measured values and can trigger an alarm if the limit is dropped below or exceeded. The upper and lower limits and hysteresis can be set for each measured value in this menu branch.
  • Page 20 -100 Pa * / -250 Pa ** HYST 0 ... 125 Pa 0 Pa Table 15: Limits parameter description * Value applies to a PUC 28 with an internal ±100 Pa sensor ** Value applies to a PUC 28 with an internal ±250 Pa sensor...
  • Page 21: Filter Setting [ Filter ]

    In various applications, brief pressure surges or other undesirable short signal fluctuations may occur. For this case, the PUC 28 has a low-pass filter for smoothing the measured values (see Fig. 14). The filter time, which can be set, is dependent on the expected signal fluctuations and the desired degree of smoothing.
  • Page 22: Relays [ Relay ]

    Instruction Manual PUC 28 5.5 Relays [ RELAY ] The PUC 28 has two relays (in some variants of the PUC 28 these relay contacts are not present). Relay 1 is triggered when the upper limits have been exceeded; relay 2 is triggered when values fall below the lower limits.
  • Page 23: Relay Activation And Deactivation Delays [ Relay / Time Rel. ]

    Instruction Manual PUC 28 5.5.2 Relay activation and deactivation delays [ RELAY / TIME REL. ] A separate activation delay and deactivation delay can be set for each of the two relays. Please keep in mind that the activation delay of the relay is the same as the deactivation delay.
  • Page 24: Alarm Acknowledgement [ Relay / Acknowledge ]

    Table 19: Relay acknowledgement parameter description 5.6 Re-Calibration [ TEACH ] The PUC 28/K has the feature to re-calibrate the pressure measurement without the need of removing the device out of its environment. For that purpose, on the front side of the device two pressure input ports are located which are marked with “+”...
  • Page 25 Instruction Manual PUC 28 After removing the hoses from the front side, a valid calibration result might be either taken over (press “Enter”) or discarded (press “Menu”). An invalid result is always being discarded. After pressing “Enter” the pressure measurement switches back to the input at the rear side, in the display the menu “values”...
  • Page 26: Rs232 Interface

    This section only applies to devices equipped with RS232 interface. The serial RS232C interface allows configuring the PUC 28 (alternatively to the configuration with the help of the integrated keys in the front plate) as well as reading the measured values and triggering certain actions (e.g.
  • Page 27 A value which has been sent is effective immediately, but it is not saved permanently automatically. For this, the command “SaveSet” has to be used. In case the PUC 28 doesn’t accept the value which has been sent, the answer contains an error code (see section 6.2).
  • Page 28: Instruction Manual Puc

    Instruction Manual PUC 28 Name Format Unit Description WarnIN2PHyst float Warning of IN2, hysteresis (input IN2 as pressure) FilterP integer msec Filter time internal pressure FilterIN1 integer msec Filter time IN1 FilterIN2 integer msec Filter time IN2 Lang integer Language 0 = german;...
  • Page 29: Commands For Reading The Measured Values And The Status Values

    Instruction Manual PUC 28 Name Format Unit Description RelTime1 integer Response time for relay 1 (for exceedings) RelTime2 integer Response time for relay 2 (for lower deviations) RelAck integer Relay acknowledgement 0 = off; 1 = on DeviceAdr integer Device address (only read access; is configured with BCD switches at the device) 6.1.2 Commands for reading the measured values and the status values...
  • Page 30: Other Commands

    RecallCalib delete re-calibration After power-up as well as after a reset the PUC 28 comes up with the message “PUC 28 Vx.x” (or “PUC 28/K Vx.x” for the PUC 28/K), where x.x represents the actual software release. The time until this message appears might be up to 5 sec.
  • Page 31 Additionally it is prompted to remove the hoses from the calibration input. When the hoses are removed from the calibration input, the command “>TCalibFinished” has to be sent. The PUC 28/K then switches back the pressure measurement to the back side and returns to the display mode.
  • Page 32: Error Codes

    The error will also be generated after a re- calibration of a PUC 28/K, if the calibration value differs more than ±30% of the factory calibration.
  • Page 33: Assignment Of The Rs232 Connector

    (top view from outside): (top view from outside): The RS232 interface of the PUC 28 is available in the following variants: 1) PUC 28 variants with 9-pole D-SUB-jack (female) directly integrated in the housing (only for wall thicknesses up to 5mm): Pin No.
  • Page 34: Interface Configuration

    6.5 Configuration software For a comfortable configuration and maintaince/logging of the measured values the PC software “PUC 24 / PUC 28 Start-Up Tool” exists. The software is available for downloading from the Internet site www.halstrup-walcher.de under the path “Downloads / Software”.
  • Page 35 Instruction Manual PUC 28 When a measurement is currently running, the program presents itself in the following way:...
  • Page 36 CSV-compatible file. Additionally a zero-point calibration, a reset as well as a re-calibration (separately for the positive and the negative measurement range) can be activated directly. (The re-calibration is only available at the device variants “PUC 28/K”.) Tab “Settings”: The actual configuration parameters can be saved in a file (*.puc) respectively being loaded...
  • Page 37 Button “Send to PUC 28”: All configuration parameters of the tabs “Scaling Values”, “Warning Values” and “Other Settings” are being sent to the PUC 28 and there being saved in the EEPROM. Button “Delivery State 100Pa and load”: The measurement range ±100Pa is being set, the PUC 28 configures itself according the delivery state for this measurement range and resets itself.
  • Page 38: Profibus Dp Interface

    The slave address is configured using the two rotary “DP ADDRESS” switches on the back of the PUC 28. Each switch has 10 positions. The tens position of the address is set using the left switch, the units position using the right switch. Consequently, addresses between 00 and 99 can be used.
  • Page 39: Modules

    Instruction Manual PUC 28 7.3 Modules There are nine modules available for configuring the PUC 28 as a Profibus slave (combining the input and output data). Any combination of modules is permitted. The only thing to keep in mind is that module 33 (“command byte”) must be a component of the configuration.
  • Page 40 No meaning Byte.0 = 0 → ZPCC automatically: Zero-point calibration is being started automatically by the PUC 28 every 15 min in the first hour following power-up and afterwards every hour Byte.0 = 1 → ZPCC is started by the Profibus master (no automatic calibration)
  • Page 41: Setting The Parameters Of The Puc 28 As A Profibus Slave

    7.4 Setting the parameters of the PUC 28 as a Profibus slave The following parameters of the PUC 28 Profibus slave are sent automatically to the PUC after the Profibus connection has been established by the master. No menu settings are necessary for this.
  • Page 42: Assignment Of The Profibus Connector

    (top view from outside): The Profibus DP interface of the PUC 28 is available in the following variants: 1) PUC 28 variants with 9-pole D-SUB-jack (female) directly integrated in the housing (only for wall thicknesses up to 5mm): Pin No.
  • Page 43: Adjusting The Puc 28 [ Teach ]

    1. Press the “Scroll right” key - an “X” appears 2. Confirm using “Enter” and “Scroll up” until “Internal pressure” is activated 3. Press ”Enter” - the target pressure to be applied to the pressure ports of the PUC 28 appears in the display 4.
  • Page 44: Adjusting The Analogue Inputs And Outputs

    “Reset” in the Menu [ SETTINGS ] 9 Care instructions for PUC 28 To clean the PUC 28 surface please only use mild dishwashing detergent. Don’t use any abrasive or acidly detergent, because the surface can be damaged. Don’t use any detergent containing isopropanol, because the Display-Window will be cloudy.
  • Page 45: Technical Data

    Relays 2 x changeover contacts 6 A / 230 VAC each (optionally not present) Table 24: Technical data Operating the PUC 28 at room temperature (20°C) ensures the highest possible level of accuracy for pressure measurements. 11 Troubleshooting Problem Cause...
  • Page 46: Dimension Drawing

    Instruction Manual PUC 28 12 Dimension drawing...
  • Page 47: Menu Tree

    Instruction Manual PUC 28 13 Menu tree WARNING W [CHANNEL][LIMIT] ( 5.3.2 Limits) WARNING [CHANNEL:] INT. PRESS. / IN 1- [CHANNEL] [VALUE] T / IN 1-P / IN 2-H / IN 2-P [LIMIT:] VALUE TOP / VALUE BOT / [CHOICE]...
  • Page 48 Instruction Manual PUC 28 DELIVERY STATE RESET ( 5.2.10) UNDO TEACH ( 5.2.9) (100Pa/250Pa) ( 5.2.11) DECIMAL PL. LANGUAGE ( 5.2.8 Decimal Places) ( 5.2.1 Language) [CHANNEL:] INT. PRESS. / LANGUAGE IN 1-T / IN 1-P / DECIMAL PL. IN 2-H / IN 2-P NEW PASSWD (...
  • Page 49 Instruction Manual PUC 28 CODE - TEACH TEACH ( 8 Adjusting the PUC 24) [Target value:] TEACH Enter code INT. PRESS. 0,0 Pa SIGNAL [Target value:] SIGNAL T(each) - x Pa [CHOICE] [Target value:] SIGNAL T(each) x Pa OUT-P /...
  • Page 50: Ranges Of Values And Default Settings

    Instruction Manual PUC 28 14 Ranges of values and default settings The following table shows the minimum and maximum values of each range of values and the default settings: Name Minimum Maximum Default setting Units VALUES  SCALING OUT-P, lower...
  • Page 51 Instruction Manual PUC 28 Name Minimum Maximum Default setting Units MEASUREMENT RANGE Measurement range ±100 / ±250* ±100 / ±250* EXTERNAL PRESSURE SENSORS External pressure None / on IN-1 / on IN-2 / on IN- None sensors 1 and on IN-2...

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