Satchwell IAC 600 Скачать руководство пользователя страница 24

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Printed in England - (04/98)

Satchwell Control Systems Limited
Farnham Road, Slough, Berkshire,
United Kingdom SL1 4UH

Tel: +44 (0)1753 550550
Fax: +44 (0)1753 824078

A Siebe Group Company

CAUTION

•

This is a 24Vac device. Do not exceed rated Voltage. Local wiring
regulations and usual safety precautions must be observed.

•

Ensure good earthing.

•

The transformer must conform to EN 60742 - DS 25.00/25.001.

•

Do not switch on power supply until commissioning procedures
have been carried out - see page 2.

•

Observe wiring precautions on page 22.

•

Do not exceed maximum ambient temperature.

•

Interference with parts under sealed covers invalidates guarantee.

•

Design and performance of Satchwell equipment are subject to
continual improvement and therefore liable to alteration without notice.

•

Information is given for guidance only and Satchwell do not accept
responsibility for the selection or installation of its products unless
information has been given by the Company in writing relating to a
specific application.

•

A periodic system and tuning check of the control system is
recommended. Please contact your local Satchwell Service Office for
details.

DS 2.951A

24 - 24

05/98

Содержание IAC 600

Страница 1: ...e Switch Module 3 Analogue Averaging Module 4 Comparator Module 4 Limiter Module 4 Look up Table Module 4 Scaling Module 4 Threshold Module 4 Rate Limiting Module 4 LOGIC MODULES NOT Module 5 AND Module 5 XOR Module 5 Latch Module 5 Delay Module 5 Rotation Module 6 Stopwatch Module 6 Counter Module 6 CONTROL MODULES Controller Module 6 Optimiser Module 8 Enthalpy Comparator Module 9 Pulse Pair Dri...

Страница 2: ...ned The screen should be earthed only at the IAC controller using one of the earth terminals supplied DO NOT USE AN ISOLATED GROUND 6 Ensure that the serial link connections are screened LAN A and LAN B screens must be connected to a verified good earth ONLY at the computer MIU LAN A and LAN B screens should be connected to the IAC isolated ground terminals of each IAC on the LAN DO NOT USE THE IA...

Страница 3: ... parameter selects the units that can be used for the input C F Ohms or Lux C ANALOGUE INPUT MODULES VOLTAGE x 6 Current Measured Value as a percentage of 10 Volts review only 0 to 100 DIGITAL TRIAC OUTPUT MODULES x 8 Output State review only On or Off Override State None On or Off None ANALOGUE OUTPUT MODULES x 4 Current Output Value as a percentage of 10 Volts review only 0 to 100 Override Value...

Страница 4: ...le to function correctly 10 000 to 10 000 IN OUT 0 0 10 2 20 3 30 4 40 6 50 10 60 16 70 25 80 40 90 63 100 100 SCALING MODULE x 8 The Scaling module is used to re scale an analogue signal based on minimum and maximum input and output values From these values the IAC scales all the points in between linearly For example for values of 0 in 0 out and 50 in 100 out a 0 to 5 Volt input is expanded to a...

Страница 5: ...g a NOT Gate after an AND Gate the output is inverted thus providing a NAND gate equivalent A NOR gate is created by connecting two or more inputs into a NOT gate By placing a NOT Gate after an XOR Gate an EQUIV Gate is created if both inputs are the same then the output is on if not the output is OFF LATCH MODULES x 8 The Latch module is used to take a momentary Digital input and give a latched o...

Страница 6: ...so allows the user to set an initial count value if required 0 to 10 000 0 Rollover Count At a preset rollover count the module will give a momentary output from the primary output reset to zero and start counting again 0 to 10 000 1000 Count Rising and Falling Edges Sets the module to count both the rising and falling edges of the pulsed input Yes or No No CONTROL MODULES CONTROLLER MODULE 2 STAG...

Страница 7: ...0 Stage 1 Integral Action Time 0 Off This parameter is the set time interval necessary for integral action time to increase the Stage 1 output by the current proportional level Set to 0 for purely proportional control 0 to 10 000 Seconds 300 Secs Stage 1 Derivative Action Time 0 Off This is usually left at zero It is used where a faster control action is required and reducing the Proportional Band...

Страница 8: ... is having on the currently active stage As boost overrides the stage fully on On or Off OPTIMISER MODULE x 2 The optimiser module is self learning with optimum on and off selectable linear or BRESTART logarithmic optimisation and histogram display The optimiser can also be selected for heating or cooling plant operation The module has its own time schedule to set the occupancy times Inputs to the...

Страница 9: ...Monday to Friday 0800 1700 Saturday to Sunday 0000 0000 Clear Histogram This is used to clear the histogram data if required Yes or No No Occupancy Setpoint This is the setpoint to be used by the optimiser 10 000 to 10 000 19 NOTE If the remote setpoint input is used then that will override the Occupancy Setpoint Optimiser Direction This sets the optimiser to operate a heating or cooling plant Hea...

Страница 10: ...p 0 to 10 000 10 Step 2 Switch on Point This parameter is used to set the switch on point for the step 0 to 10 000 20 Step 3 Switch on Point This parameter is used to set the switch on point for the step 0 to 10 000 40 Step 4 Switch on Point This parameter is used to set the switch on point for the step 0 to 10 000 60 Step 5 Switch on Point This parameter is used to set the switch on point for the...

Страница 11: ...t as 0300 If only one ON OFF is required for a day then the First ON time is set and also the First OFF The Second ON and second OFF should be set to the same time as the First OFF If the IAC is to be off all day set both ONs and OFFs to 0000 0000 to 2359 0800 1700 1700 1700 ALARM MODULES x 12 The Alarm module is used to monitor a digital signal when the signal is on the alarm module registers an ...

Страница 12: ...to Null Output Mode reload defaults should be used to clear it This will overwrite any parameters set by the user Detector Sequence This setting selects the sequence in which the detectors are read The default setting is 0 and this setting gives an equal priority to all detectors Selecting 1 will give priority to temperature resistive input 1 and 2 gives priority to analogue Voltage input 1 Sequen...

Страница 13: ...ule gives a pulsed digital output the rate of which can be set by the user As the rate is arbitrary and will vary with the controller workload it should be used for non critical applications only Flash Rate The flash rate is set in arbitrary units 0 being the fastest and 100 the slowest The on and off times are of similar length 0 to 100 5 DIGITAL ONE MODULE x 1 The module may be placed on screen ...

Страница 14: ... a system but if the supplied application suits your system it may be used as it stands Hardware Preset Applications There are currently 4 preset applications that can be selected from the 8 way bit switch and they are as follows Preset 0 Fully configurable No links are made between modules This preset should be chosen if you wish to configure the IAC completely APPLICATION NOTES 1 If an applicati...

Страница 15: ...HWS loops The time re synchronization input will re synchronize the IAC time to midnight Monday COMPENSATOR Schedule OUTSIDE SUPPLY 0 80 10 50 20 20 The outside temperature value is fed into a look up table The result is passed to the controller RPW input and is used to set the controller set value Proportional Band 10 Integral Action 300 Derivative Action 0 Ramp Time 60 Sample Time 10 HWS The HWS...

Страница 16: ...chronization input will re synchronize the IAC time to midnight Monday COMPENSATOR Schedule OUTSIDE SUPPLY 0 80 10 50 20 20 The outside temperature value is fed into a look up table The result is passed to the controller RPW input and is used to set the controller set value Proportional Band 10 Integral Action 300 Derivative Action 0 Ramp Time 60 Sample Time 10 BOILER BACKEND VALVE The lead boiler...

Страница 17: ...e time re synchronization input will re synchronize the IAC time to midnight Monday COMPENSATOR Schedule OUTSIDE SUPPLY 0 80 10 50 20 20 The outside temperature value is fed into a look up table The result is passed to the controller RPW input and is used to set the controller set value Proportional Band 10 Integral Action 300 Derivative Action 0 Ramp Time 60 Sample Time 10 BOILER BACKEND VALVE Th...

Страница 18: ...ply and extract fans are speed controlled from the velocity sensors their set values being determined by the heating and cooling control demand signals The main temperature loop operates a heater battery and common cooler battery The dampers are modulated from the heating and cooling control demand signals and have a minimum fresh air setting of 30 In the event of the smoke switch activating the r...

Страница 19: ... using a hardware preset application set the application number on bit switches 1 to 6 and ensure that bit switch 7 is set to OFF 6 If the IAC is not to be connected to a computer then it is not necessary to set an address for it 7 Once the Application Number is set it must be entered into the IAC by cold starting the controller This is achieved by setting bit switch 8 to ON and then setting bit s...

Страница 20: ...ttom single height contains 34 to 41 and all of the Ground and Isolated Ground terminals Terminal numbers run from left to right 6 Ensure Terminal 2 is earthed 66The 24Vac Supply must have a 2A fuse The transformer must conform to EN 60742 DS 25 00 25 001 LAN A and LAN B should be screened with the screen earthed only on a verified good earth at the computer or MIU LAN A and B screens should be co...

Страница 21: ...LAN addresses The number of IAC controllers on a Touch screen Sub LAN is limited to a maximum of 31 base units including the one the Touch screen is plugged into Each Touch screen can display up to 256 parameters ISOLATED GROUND ISOLATED GROUND LAN A and LAN B should be screened with the screen earthed only on a verified good earth at the computer or MIU 6LAN A and B screens should be connected to...

Страница 22: ...from it 230Vac 45cm min 415Vac 58cm min both Voltages are with respect to earth and a maximum current of 15A For other Voltages currents refer to the IEE report titled Electro Magnetic Interference September 1987 ISBN85296353X WIRING PRECAUTIONS Wiring from IAC controller to Maximum length for 1 5mm2 core unscreened cable Maximum resistance per conductor Sensors DRT adjustable DRT non adjustable D...

Страница 23: ...05 98 23 24 DS 2 951A ...

Страница 24: ...n power supply until commissioning procedures have been carried out see page 2 Observe wiring precautions on page 22 Do not exceed maximum ambient temperature Interference with parts under sealed covers invalidates guarantee Design and performance of Satchwell equipment are subject to continual improvement and therefore liable to alteration without notice Information is given for guidance only and...

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