Issue 14
25th April 2000
BA550P and BA550C
Batch Controllers
The BA550P and BA550C are CE marked to show compliance with EMC Directive 98/336/EEC
Страница 1: ...Issue 14 25th April 2000 BA550P and BA550C Batch Controllers The BA550P and BA550C are CE marked to show compliance with EMC Directive 98 336 EEC ...
Страница 2: ...unications 7 3 8 Direction of count 7 3 9 Automatic reset 7 3 10 Automatic restart 7 3 11 Overrun compensation 7 3 12 Test routine 7 3 13 Language 7 4 Programming the batch parameters 7 4 1 Batch setpoint 7 4 2 Setpoint limit 7 4 3 Start delay time for output 2 7 4 4 Stop delay count for output 2 7 4 5 Grand total 7 4 6 Decimal point 7 4 7 Batch scale factor 7 5 Programming the rate parameters 7 5...
Страница 3: ...is performed via the five front panel push buttons To prevent accidental or unauthorised adjustments three levels of access are defined by the position of two security links connected between terminals at the rear of the instrument These links may be hard wired or connected to a panel mounting key switch when frequent changes are required A Light emitting diode LED on the front panel indicates whe...
Страница 4: ...utput 2 af ter the start delay time STOP Operating this button during a batch immediately de energises both Out put 1 and Output 2 relays causing the batch to pause During a pause any input signal continues to be counted the Start LED is extin guished and the Stop LED flashes to indicate that the batch is not complete The batch may be resumed at any time by pressing the Start button If a start del...
Страница 5: ...equired figures and then return to the operating mode by pressing Prog twice Fig 11 shows this procedure diagrammatically 4 3 Operation as a totaliser Both versions of the BA550 may be used for totalising and rate indicating applications when the batch control functions are not required To simplify operation for these applications the batch control functions and the Start and STOP push buttons may...
Страница 6: ...its the maximum input frequency with voltage free contacts to 100Hz When conditioned for use with switch contacts the BA550P has an open circuit input voltage greater than 6V which will break down most surface contaminating films 5 1 3 Use with voltage pulses The BA550P can be conditioned by two internal plug in links to accept low or high voltage input pulses Input switching thresholds are shown ...
Страница 7: ...ulses with a period greater than the programmed missing pulse time the flow alarm will be cleared for the missing pulse time when each pulse is received BA550C 4 20mA input The BA550C converts a 4 20mA analogue input current into a 0 to 1kHz internal pulse signal The flow alarm may be set to operate at any input current by calculating the equivalent missing pulse time in seconds from the formula s...
Страница 8: ... BA550C which is fitted with an analogue input card only accepts a 4 20mA current so no input conditioning is required 6 3 Installation procedure a Insert the BA550 into the panel aperture from the front ensuring that the sealing gasket is correctly positioned b Clip two or four panel mounting clips to the enclosure and evenly tighten the screws until the instrument is held firmly in position Conn...
Страница 9: ...hing indicating that this digit may be adjusted by pressing the Up or Down push buttons When this digit has been set to the required number press Ent to adjust the next digit When all the digits have been adjusted press Prog to return to the programme menu from which another parameter may be selected for adjustment or the BA550 may be returned to the operating mode by pressing the Prog push button...
Страница 10: ...trol CONTROL The BA550 may be controlled by the five front panel push buttons by remote switches or by both the front panel push buttons and remote switches Selection of control by remote switches will inhibit the operation of the front panel Start Reset and STOP push buttons To choose the method of control select CONTROL from the mode setting menu and press Ent which will reveal the current setti...
Страница 11: ...wn buttons When set to the required time return to the main menu by pressing the Prog push button 7 3 7 Serial communication S COMMS The serial communications port can only be activated when a serial communication board is fitted to the BA550 To activate the serial communications port select S COMMS from the mode parameter menu and press Ent which will reveal if the option is ON or OFF If the requ...
Страница 12: ...enu and press Ent Pressing the Up push button will scroll the display through the options available When the required language has been selected press Prog twice to return to the operating mode after which all menu prompts will be displayed in the new language 7 4 Programming the batch parameters See Fig 11 The batch parameters define the operation of the batch control and totalising functions Whe...
Страница 13: ...atch controller only The batch setpoint is the batch total at which Output 1 is de energised when counting up and the display starting point when counting down The batch setpoint may be adjusted between 0 and 99999999 or the setpoint limit SP LIMIT if this has been programmed to a lower number To adjust the batch setpoint select SETPOINT from the batch parameter menu and press Ent to reveal the ex...
Страница 14: ...signal which is counted and scaled to provide the total display With an input of 20mA the internal current to frequency converter produces 1000 input pulses per second To calculate the scale factor it is therefore necessary to specify the required display after 1 second with a 20mA input When calculating the batch scale factor the Display after 1 second with a 20mA input must include all the digit...
Страница 15: ...from which another parameter may be selected for adjustment or the BA550 may be returned to the operating mode by pressing the Prog push button a second time Fig 12 shows a diagrammatic representation of the rate parameter menu and the method of moving between the adjustments Each parameter is summarised below and cross referenced to a full description in a following section Summary of rate parame...
Страница 16: ...le factor for a BA550C 4 20mA input is limited to about 5 To adjust the rate scale factor select SCALE R from the rate parameter menu and press Ent to reveal the existing factor which may be adjusted by pressing the Up or Down push buttons 7 5 3 Display timebase TIMEBASE The rate scale factor described in the previous section defines the relationship between the input pulse frequency and the rate ...
Страница 17: ...select OFF 7 3 7 Batch parameters refer to DP T select no point 7 4 5 SCALE T set 0000001 00 7 4 6 Rate parameters refer to DP R select no point 7 5 1 Scale R set 01 000000 7 5 2 TIMEBASE select HOUR 7 5 3 FILTER select 00 7 5 4 The second application shown in Fig 14 illustrates how a BA550C 4 20mA analogue input may be used with a magnetic flowmeter to display the total flow and flow rate in a wa...
Страница 18: ...wmeter incorporates a 2 wire proximity detector which produces 137 pulses per gallon Input conditioning refer to To accept a 2 wire proximity detector 6 2 1 both the internal plug in links should be put in the proximity detector position see Fig 6 Programming refer to Mode parameters FUNCTION select BATCHER 7 3 1 CONTROL select LOCAL 7 3 2 RTX O P select OFF 7 3 3 ROOT EXT select OFF 7 3 4 TIMEOUT...
Страница 19: ...e pulse source disappears when BA550P is connected The BA550P pulse input does not have a galvanically isolated input Ensure that the negative side of the input signal is at the same potential as the negative side of the 24V power supply See section 5 1 BA550P will not count input pulses Incorrect input conditioning check that both internal plug in links are correctly positioned See section 6 2 1 ...
Страница 20: ...ing care not to bend any of the connector pins 2 Slide the plastic scale card carrier out of the enclosure and remove the card which is secured by a self adhesive pad 3 Mark legend onto the card using a stencil or transfer fix the card to the carrier and replace in the enclosure Ensure that the legend is aligned with the front panel window 4 Replace the rear panel taking care not to damage or bend...
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