Maniks Pune Pune Manufacturers Pulse Valve Manufacturer
DIN EN ISO 9001:2000
Cert. No. 85 100 001 07808


Sequential Controller

Sequential Controller designed by MANIKS, to operate the MANIKS pilot valves used on dust collector equipment. Light emitting (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 energized (Pulse Frequency) and the length of time that the valve is energized (Pulse Frequency) . 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 sequence and reset the Controller to the first valve position whenever A.C. power is removed and than 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 position.

Input Voltage Range 200 to 250 V AC, 50 Hz
Input Fuse 3A,Quick Blow Type
Pulse Frequency Range of Adjustability 2 to 60 seconds
Pulse Duration Range of Adjustability 20 to 200 milliseconds
Number of Sequence Steps 2 through 10 , adjustable in field (Factory set at 10)
Temperature Range operating storage   0C to +50 C
-5 C to +65 C
Repetitive Accuracy on Time Sequences  + 5%
Current Rating per Sequence Step max.   inrush current 5.0 amps at 95-245 Volts, 50-60 Hz
Maximum Continuous Current 2.0 amps at 95-245 Volts, 50-60 Hz.
(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).
Dimensions open type with enclosure 193 mm high, 130 mm wide, 48 mm deep Consult factory, optional extra
Mountings For stand off are supplied for mounting Controller
Note: The input voltage to the controller and the coil voltage on the pilot valves must be compatible.
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.

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.


The sequential Controller provides timed sequential energization of connected loads. When power is applied to the controller, the "Power" light emitting diode (LED) provides visual indication and loan number 1 is immediately energized. Output 1" LED Provides visual indication of this event. The load will remain energized for the length of time as indicated by the setting of the "Pulse Duration" control. Refer to Figure 1. Note that the calibrated dials are for approximate settings only and if exact timings are required, they must be measured.

Load number 2 will automatically be energized at some time interval after load number 1 has been deenergized. This length of time will be as indicated by setting of the "Pulse Frequency" control. "Output 2" LED will provide visual indication that this event is occurring. The Controller will continue to sequentially energize the loads until the power is removed.

Two independent methods of starting and stopping the controller are provide. This first method will automatically stop the sequence and reset the Controller to the first load position whenever the A.C. Power is removed and then reconnected. This can be accomplished by placing a control in the line conductor connected to terminal "1".

The second method provides for remote starting and stopping of the Controller. To accomplish this the factory supplied jumper connected between terminals P1&P2 must be removed and a remote control contact wire, in its place as shown in figure 1. When this remote contact is closed, the Controller will sequentially energize the loads. When the remote contact is opened, the sequence stops. When the remote contact is reclosed, the sequence from the pervious position.

CAUTION: Switch off the controller before making any connection or adjustments.
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

a) measure Voltage at terminals L + N input voltage must be 230 V A C
  b) inspect input fuse. Replace fuse 3 ampere, 250 volt , 5x20 mm
  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
4) Controller output LED’s sequence, But one or more toads Do not energize a) inspect wiring to the affected load (S) Correct the wiring to the affected load (S)
  b) Inspect the load itself replace the defective load Component.
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