Related Manuals for Endress+Hauser ZAD 423
Summary of Contents for Endress+Hauser ZAD 423
- Page 1 BA 161F/00/en/09.97 Controller Software version 1.0 Part No. 017273-1000 ZAD 423 for Silopilot FMM Operating Instructions Endress Hauser Nothing beats know-how...
- Page 2 Quick guide ZAD 423 Quick Guide Basic calibration Step Calibration Entry Example Remarks field H – Set counting interval Number 1 dm 0 = counting For counting step – corresponding 5 cm step see nameplate to counting 1 cm 1 dm...
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Page 3: Table Of Contents
5.1 Connecting the Silopilot FMM to 8.5 Returning for repair ..29 the ZAD 423 Controller ..8.6 Disposal ... . . 29 5.2 Disabling the start-up line (Stop) . -
Page 4: Software Changes
1 Software changes ZAD 423 1 Software changes Version, Date Revisions Changes 04.04.1997 Endress+Hauser... -
Page 5: Notes On Safety
ZAD 423 2 Notes on Safety 2 Notes on Safety 2.1 General information In order to highlight safety-relevant or alternative operating procedures in the manual, the following conventions have been used, each indicated by a corresponding icon. Icons for Icon... -
Page 6: Special Notes On Safety
2.2 Special notes on safety Approved usage The ZAD 423 controller is used to control the Silopilot FMM level measuring device, to show level on the digital display, to convert the level into an analogue output signal and to supply limit signals. -
Page 7: Introduction
- for remote display of free space between the surface and silo roof • Output of two limit signals 3.2 Measuring system The measuring system consists of: • Silopilot FMM 760 or FMM 460 • Controller ZAD 423 with - integrated time switch, - digital display, - analogue output, - limit switch •... -
Page 8: Operating Principle
It then counts the number of pulses transmitted by the Silopilot. At the end of the measurement cycle, the level in the silo is shown on the digital display of the ZAD 423 controller in the units required (e.g. m, in, ft). -
Page 9: Installation
4 Installation 4.1 Planning The ZAD 423 controller must be installed in a control room or else in a protective housing. (This must be outside the explosion hazardous area if the Silopilot FMM is used in a dust explosion hazardous area.) The instrument is in Minipac form for single or row-mounting on a symmetrical rail to EN 50022-35x7.5 or EN 50022-35x15. -
Page 10: Mounting
Before installing, check to see if you have the correct instrument. Information about the product is given on the nameplate. Compare the product designation with that given in the product structure. ZAD 423 Controller Certificates, Approvals Standard - without special certificate... -
Page 11: Electrical Connection
5 Electrical Connection Warning! Some of the connecting cables can carry hazardous contact voltages. Before connecting up switch off all power to the Silopilot FMM, the ZAD 423 controller and all peripherals (already or still to be connected). Counting Start... -
Page 12: Connecting The Silopilot Fmm To The Zad 423 Controller
Note: • The ZAD 423 controller is to be connected to one Silopilot FMM level sensor. • The ZAD 423 controller and counters must not be connected in parallel to the same pulse counting outputs of the Silopilot FMM. Note! •... -
Page 13: Analogue Output Signal, Current Output
(see Technical Data). An isolating switch for a power supply should be installed near to the instrument. A fine-wire fuse is built into the ZAD 423 controller so that the connection of another fine-wire fuse is not required. - Page 14 5 Electrical Connection ZAD 423 Endress+Hauser...
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Page 15: Start-Up
• Start up the Silopilot FMM and check operation according to instructions in the appropriate operating manual. 6.2 General information on settings • Switch on the power supply to the ZAD 423 controller. When switching on for the first time or after a reset, the instrument displays the following: Fig. - Page 16 Pushbuttons and display field level. *) Arithmetic sign –, if the weight falls below the preset zero point (H 1) of measurement behind front panel The ZAD 423 controller is set using a row of 10 fields: Calibration field Description...
- Page 17 ZAD 423 6 Start-Up • Selecting the fields: Press pushbutton H so long or so often, until the correct field is shown under the letter H. • Entering the values or numbers: Press pushbutton + or – so long or so often, until the correct number is shown.
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Page 18: Basic Settings
6 Start-Up ZAD 423 6.3 Basic settings 6.3.1 Setting the counting step Note: The counting step is distance per pulse which the Silopilot counts as the sensing weight is lowered into the silo. The counting step (= "Zählung / Zähleinheit / unit") is Note! •... - Page 19 ZAD 423 6 Start-Up 6.3.3 Full calibration Note: When defining the maximum height (100%) for measurement, take into account - the mounds formed by the bulk solid and - the mounting point of the Silopilot. Note! The maximum height must be below the tip of the sensing weight of the Silopilot FMM.
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Page 20: Silopilot Design
ZAD 423 6.4 Silopilot design The factory settings of the ZAD 423 take into account the dimensions of a Silopilot FMM 760 with standard wiper rods and sensing weight, i.e. 0.7 m from the flange to the lower edge of the sensing weight (without spike), if the counting step is set to 1 dm. -
Page 21: Analogue Output Signal
6.5.2 Setting the response on fault The ZAD 423 controller monitors the cable connection to the Silopilot. A fault is shown in the display field if no pulse for reset or counting comes from the Silopilot after a start-up from the controller. -
Page 22: Limit Signals
6 Start-Up ZAD 423 6.6 Limit signals There is a relay in the ZAD 423 controller with a change-over contact, which can be set to minimum or maximum fail-safe. Minimum fail-safe means that the relay de-energises on reaching the lower limit, on a fault or on power failure. - Page 23 ZAD 423 6 Start-Up 6.6.1 Setting two-point detection Two-point detection with minimum fail-safe mode: Step Calibration Entry Example Remarks field – Height O in m 16.5 (m) from for steps of zero point of 1 cm measurement 5 cm (empty silo)
- Page 24 6 Start-Up ZAD 423 6.6.2 Setting single-point detection Limit detection with minimum fail-safe mode: Step Calibration Entry Example Remarks field – Height O in m 1.2 (m) from for steps of zero point of 1 cm measurement 5 cm (empty silo)
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Page 25: Time Switch (Timer)
ZAD 423 6 Start-Up 6.7 Time switch (Timer) The time switch allows the Silopilot to be started up at regular intervals to measure level. The frequency of start-ups depends on the application. In order to keep current consumption and wear to a minimum, the Silopilot should not be in operation more than necessary. -
Page 26: Display Of The Measured Value
Section 8 "Trouble-shooting, repairs". If the level display, the analogue output signal or the relay status display does not appear to be correct, then check the height in the silo and the settings on the ZAD 423 controller (H 1 to H 9). -
Page 27: Maintenance
ZAD 423 7 Maintenance 7 Maintenance Regular maintenance of the ZAD 423 controller is not required. See the appropriate operating manual for carrying out maintenance to the Silopilot FMM. 8 Trouble-shooting, repairs The following faults in the measuring system will be indicated:... -
Page 28: Spare Parts
8.3 Replacing parts Parts may be replaced by trained and authorised personnel only! Warning! Some of the connecting cables to the ZAD 423 controller can carry hazardous contact voltages. Before carrying out any procedure • Switch off the power supply to:... - Page 29 ZAD 423 8 Trouble-shooting, repairs See Fig. 15. Removing the instrument Plugging the instrument on the standard rail, see Section 4.2 "Mounting". from the standard rail 90 ° Fig. 15 Removing the instrument from the standard rail See Fig. 16.
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Page 30: Checking
When the test run is successfully completed, the measuring system is ready for operation. In the event that the level display, analogue signal or the relay status display is incorrect, check all settings on the ZAD 423 controller (H 1 to H 9). Endress+Hauser... -
Page 31: Returning For Repair
8 Trouble-shooting, repairs 8.5 Returning for repair General information: When returning an instrument to Endress+Hauser for repair, please note the following: Remove all residue which may be present. Cleaning This is especially important if the medium is dangerous to health, e.g. corrosive, poisonous, carcinogenic, radioactive, etc. - Page 32 8 Trouble-shooting, repairs ZAD 423 Endress+Hauser...
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Page 33: Technical Data
Modularity Level measuring system, consisting of: Silopilot FMM on the silo and the ZAD 423 controller in the control room Signal processing Countdown of the pulse step values coming from the Silopilot,... - Page 34 9 Technical Data ZAD 423 (Operating conditions continued) Environmental conditions Ambient temperature range For single mounting: –20 °C … +60 °C (0 … 140 °F) –20 °C … +50 °C (0 … 120 °F) For row mounting: In protective housing: –20 °C … +50 °C (0 … 120 °F) Limiting temperature range –25 °C …...
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Page 35: Index
ZAD 423 10 Index 10 Index + ....– .... - Page 36 Belorgsintez Poland Chile Minsk South Korea DIN Instrumentos Ltda. Endress+Hauser Polska Sp. z o.o. Tel. (01 72) 26 31 66, Fax (01 72) 26 31 11 Endress+Hauser (Korea) Co., Ltd. Warszawy Santiago Seoul Tel. (0 22) 7 20 10 90, Fax (0 22) 7 20 10 85 Tel.
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