How to Fix the Sequential Controller, Dust Collector Controller

The Maniks Sequential Controller has been designed to operate the MANIKS pilot valves used on dust collector Equipment. Light emitting diodes (LEDs) provide visual indication of which pilot valve is being energized as well as "Power On" indication. The number of sequenced steps is adjustable from 2 through 10.Controls are provided to adjust the length of time between valves being de-energized (Pulse Frequency / Off time) and the length of time that the valve is energized (Pulse Duration / On time). Silicon semiconductor components control all timing and logic Functions.

Two independent methods of starting and stopping the Controller are provided. The first method will automatically stop the sequence and reset the Controller to the first valve position whenever A. C. power is removed and then reconnected.

The second method is by a remote control contact connected to the terminals provided. When the remote contact is opened, the sequence stops. When the remote contact is reclosed, the sequence continues from the previous

Sequential Controller Operation :

The catalog SQP-1 Sequential Controller provides timed sequential energization of connected loads. When power is applied to the Controller, the "Power On" light emitting diode (LED) provides visual indication and pilot valve number 1 is immediately energized. "Output 1" LED provides visual indication of this event.

The pilot valve will remain energized for the length of time as indicated by the setting of the "Pulse Duration / On time" control. Note that the calibrated dials are for approximate settings only and if exact times are required, they must be measured.

Pilot valve number 2 will automatically be energized at some time interval after pilot valve number 1 has been de-energized. This length of time will be as indicated by the setting of the "Pulse Frequency / Off time" control, "Output 2” LED will provide visual indication that this event is occurring. The Controller will continue to sequentially energize the pilot valves until the power is removed.

Additional Parameters for feedback type as follows :

A] 1) System Ok / Timer Healthy - Potential free 'NO' relay contact.
2) Sequence 'ON' / D.P. Low - Potential free 'NO' relay contact.
B] 1) Auto Mode - Channels activated in sequence as per 'On' and 'Off' time.
2) Manual mode - Output channels are activated by pressing push button on PCB near Auto /Manual switch channel in sequence

Sequential Controller Specifications :

Supply Voltage	Input Fuse
230VAC	1.5A
110VAC	3A
24VDC	3A

B] Pulse Frequency / Range Adjustability : Standard : 2 to 60 seconds Special Requirements : 1) 4 to 120 seconds 2) 6 to 180 seconds
C] Pulse Duration / Range Adjustability : 20 to 200 milliseconds Special Requirements : 1) 40 to 400 milliseconds 2) 100 to 1000 milliseconds
D] Number of Sequence Steps 2 through 10, adjustable in field (Factory set at 10) 2 through 18, adjustable in field (Factory set at 18) 2 through 40, adjustable in field (Factory set at 40)
E] Operating Temperature Range : 00C to 500C
F] Repetitive Accuracy on Time Sequence : ± 5%

G] Current Rating per Sequence Step:

Voltage	Max Inrush Current	Constant Current
230 VAC	4 Amp. (50 Hz.)	2 Amp. (50 Hz.)
110 VAC	4 Amp. (50 Hz.)	2 Amp. (50 Hz.)

H] Special Requirements for Voltages ( DC Kit Type ) : Following variations can be given in 10 channel, 18 channel , 40 Channel as well as with FEEDBACK Types.

Input Voltage	Output Voltage
230 VAC	24VDC
110 VAC	24VDC
230 VAC	110VAC

(NOTE: Solid-state elements require that minimum continuous current per sequence step must not be less than 0.050 amperes. Consult Factory for special rating requirements including operation below 0.050 amperes )

Easy fixes for Micro Controller Based Dust Collector Controller

The MANIKS Controllers of this series are micro controller based units which can be programmed to suit clients actual requirements. There are two basic modes of operation : a)Program Mode b)Manual Mode

In "program Mode" the unit can be programmed to follow desired set of instructions and in “Manual Mode “we can operate out put ( Pilot Valves ) sequentially. This controller has been designed to operate the pulse solenoid valves used on dust collector equipments.

The controller has been provided with SEEPROM to retain programmed values of various parameters in case of power failure. The programmed values automatically get stored in SEEPROM. This SEEPROM will last up to 1million read/write operations and the stored data will be retained up to many years.

Micro Controller Operation :

The Micro Controller provides timed sequential energization of connected loads. When power is applied to the controller, pilot valve will remain energized for the length of time as indicated by the setting of the “ON”control.

By keeping MENU key on key board pressed for approx 3 Sec.We can select “PROGRAM MODE” for modification in values of various parameters.

Micro Controller Specifications :

Supply Voltage	Input Fuse
230VAC	300m A.
110VAC	300m A.

B] Coil Voltage: 230VAC / 110 VAC
C] Number of Channels : 8, 16, 32
D] On Time : 1m.Sec to 9999m.Sec.
D] Off Time : 1m.Sec to 9999m.Sec.
D] Pause Time : 1m.Sec to 9999m.Sec.
G] Inter Locks :(Potential Free Contacts) a) PLC can be bypassed by keeping terminals shorted / In program by selecting "NO" b) LO- Pre ( LOW-Pressure ) can be bypassed by keeping terminals shorted / In program by selecting "NO" c) HP- Pre ( High-Pressure )
H] Feed Back Provided : Potential Free "NO" Contacts A) Pulsing On A) Timer On
I] Enclosure - SIEMENS GRAY Powder coated Canopy Type (equivalent to IP 55 )
J] Display - LCD Display
K] Mountings - Consult Factory for Mounting display

L] Special Requirements for Voltages Following variations can be given in 8 channel,16channel,32 channel

Input Voltage	Output Voltage
230VAC	24 VDC
110 VAC	24 VDC

NOTE: Solid-state elements require that minimum continuous current per sequence step must not be less than 0.050 amperes. Consult Factory for special rating requirements including operation below 0.050 amperes)

Field Wiring Procedure :

A 15-point terminal block with approved means for connection of conductors without terminal lugs are provided on the Controller for convenient wiring of the control power, loads and remote contact (if used).

Figure 1 illustrates where all necessary wiring should be made, loads, should be wired in desired sequence as noted. ONLY after all connection has been re-checked, should power be applied to the Controller.

Notes

1. When remote contact is used, jumper between Half (P1 &P2) must be removed.
2. Number of sequenced steps adjustable in field by moving jumper wire.

Adjustments :

CAUTION: Switch off the controller before making any connection or adjustments. To CHANGE TIME INTERVALS TO CHANGE NUMBER OF LOAD STEPS Turn the Pulse Frequency dial To the desired setting. This is the Approximate time interval between Energizing load steps. Turn the Pulse Duration dial to the desired Setting. This is the approximate time Interval that each load is energized. Locate the Jumper wire connected between the circuit board and the step pin. pull off the jumper and push it into the desired pin number. This is the total number of load steps.

Trouble Shooting Problem Check Corrective Action :

1) Power on LED does not come on
1. a) measure Voltage at terminals L + N input voltage must be 230 V A C
2. b) inspect input fuse. Replace fuse 3 ampere, 250 volt , 5x20 mm
3. c) inspect jumper on circuit board push jumper, firmly into the pin
2) Controller fails to sequence a) inspect jumper between HALT (if remote contact inspect wiring to Not used) install jumper between HALT terminals
3) Controller fails To sequence through To desired number of Load steps inspect jumper on circuit board push jumper onto desired pin number
Controller output LED’s sequence, But one or more toads Do not energize
1. a) inspect wiring to the affected load (S) Correct the wiring to the affected load (S)
2. b) Inspect the load itself replace the defective load Component.

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