ESA SEQUENCER FOR DEDUSTING PLANTS, Руководство по установке

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2.2 STANDARD FEATURES
Code Description
B10b Manual activation of every single output from keyboard
By keyboard, it is possible to activate manually and individually every single output for an operation test.
Press key C to select the desired output to be activated. Press key A to activate the output.
The output is holded active for all the time that key A is pressed. It allows to measure the output voltage by using a
tester.
In case of anomalous operating, do this test with electrovalves disconnected.
B1b Select Number of outputs
The selection of the number of outputs to be control led is connected by keyboard in SET MODE. If you set 0 or AUTO
in this function the sequencer will automatically select the connected loads by skipping the non connected ones.
Minimum load 5W ÷ 12 W depending on the output voltage. If the load is below of the minimum, the autoselection does
not work correctly, set the number of outputs in set up.
B2x Activation time from 0.05 to 5.00 sec.
B3x Interval time from 1 to 999 sec.
If the pulse time is lower than 1 sec. it is possible to set any interval time value in the range indicated.
If the activation time is higher than 1 sec. the minimum settable interval time is:
Minumum interval time = 5 times pulse time (B2x)
B8b Short-circuit protection of every single output
In case of short-circuit, the corresponding output is automatically skipped. Relay K2 will signal the alarm condition and
display will show the alarm situation code E1 (See the alarm description).
Press key E to reset the alarm.
C0 Input activation from external contacts
In Set up you can activate or deactivate the control of all the inputs of the device.
If inputs are deactivated, they are considered as always closed and no jumper is required on the terminal board.
Use a jumper for unused inputs if you activate them.
NOTE: all inputs of the device have to be connected to external contact without voltage.
C6 ON/OFF cleaning cycle from external pressure switch
If contact C6 is open, the cleaning cycle stops at the end of the whole cleaning cycle and the display shows 'P', which
means stop for low dP.
If contact C6 is closed, the cleaning cycle restarts from the beginning.
NOTE C6: Use a jumper for C6 if it is not used with active inputs (see F01).
D1a Additional cycles after fan stop
By connecting an auxiliary volt-free contact of the fan circuit with the sequencer, it is possible to add a well-defined
number of cleaning cycles after the stop of the fan. Their number is selectable from 0 to 99 from the keyboard.
The activation of post-cleaning cycles starts even if C6 contact is open.
If contact D1a is open, the display shows '-0-' to indicate cycle stop for fan Off.
During the cycles after the fan stop, the decimal points blink on the display.
NOTE D1a: Link D1a clamps if it is not used with active inputs (see F01).
D6 ON/OFF Cleaning cycle from external contact.
If contact D6 is open, the cleaning cycle is not enabled and the display shows 'OFF'.
With sequencer with digital dP control the display shows 'OFF' and the dP reading alternatively.
By closing D6, the cleaning cycle can start from the first electrovalve
NOTE D6: Link D6 clamps if it is not used with inputs from external contact active. (see 5.1 : SETUP F01).
G1 Maximum load power 25W per output
HV Input / Output voltage selection.
Use the jumpers on the board to select the supply voltage and the output voltage on the electrovalves. (See the board
layout).
JP1: Supply voltage selection between 115VAC and 230VAC.
JP2: Output voltage selection between 24, 115, 230 V (Only with 115VAC or 230VAC power supply).
JP3: Output voltage selection between AC and DC only with JP2 set to 24V.
WARNING: set F08 (PB/BB) or F16 (PC/BC) to the same output voltage that has been selected by means of the
jumpers to adjust the shortcircuit threshold. Otherwise, this might cause any malfunction or damage to the sequencer.