User guide

Main technical specification of the device is given in Table.

The device is designed for operation in following conditions:

• closed explosion-proof rooms without aggressive vapors and gases;
• ambient temperature from -20 to +70 °С;
• upper limit of relative humidity is max. 95 % at 35 °C and lower temperatures without moisture condensation;
• atmospheric pressure from 84 to 106.7 kPa.

In terms of resistance to electromagnetic influences and the level of radiated radio interference, the device corresponds to class A equipment in accordance with GOST 51522-1999 (IEC 61326-1).

In terms of resistance to mechanical influences during operation the device corresponds to group of performance N2 in GOST R 52931-2008.

According to the resistance to climatic impacts during operation, the device corresponds to the execution group V4 according to GOST R 52931-2008.

Notice

Requirements in terms of external influencing factors are mandatory as related to safety requirements.

To connect Device:

1. Fasten the bracket with three M4 × 20 screws on the surface intended for mounting the Device (see Figure).
   Notice

   Bracket mounting screws are not included.
2. Hook the fixing bracket from the back panel of Device to the upper edge of the wall bracket.
3. Attach Device to the bracket with the supplied screw.

Demount Device in the reverse order.

Notice

Remove the cover before wiring. Fasten the base of Device to the bracket with a supplied screw.

Notice

The bushings need to be cut in accordance with the diameter of the lead-in cable.

To connect Device:

1. Prepare a place for mounting on the control panel (see Figure).
2. Install the gasket on the frame of Device to ensure degree of protection IP54.
3. Insert Device into a specially prepared hole on the front of the control panel.
4. Insert the supplied retainers into holes on the sides of Device.
5. Tighten supplied screws M4 x 35 in the holes of each retainer so that Device is firmly pressed to the front of the control panel.

Demount Device in reverse order.

To connect Device:

1. Prepare a place for mounting on the control panel (see Figure).
2. Install the gasket on the frame of Device to ensure degree of protection IP54.
3. Insert Device into a specially prepared hole on the front of the control panel.
4. Insert the supplied retainers into holes on the sides of Device.
5. Tighten supplied screws M4 x 35 in the holes of each retainer so that Device is firmly pressed to the front of the control panel.

To ensure the reliability of electrical connections it is recommended to use copper stranded cables, the ends of which should be carefully cleaned and tinned. Otherwise use cable lugs before connection. Cable conductors should be stripped so that their bare ends do not protrude beyond the terminal strip after connecting to the device. The cable cross section must be not more than 1 mm².

General requirements for connection lines:

• During the cabling, communication lines that connect the Device with sensors must be isolated to a separate circuit (or several circuits) and placed separately from power cables or other sources of high-frequency and impulse interferences;

• To protect the Device inputs from the effects of industrial electromagnetic interference, the communication lines between Device and sensors should be shielded. Special cables with shielding or grounded steel pipes of suitable diameter can be used. The cable shielding should be connected to the functional ground terminal (FE) in the control panel;

• Network interference filters should be installed in the power supply lines;

• Spark-fighting filters should be installed in the switching lines of power equipment.

When installing the system in which the Device operates, you should follow the rules for effective grounding:

• all grounding lines must be laid in Y-connected circuit, ensuring good contact with the grounding element;

• all earthing circuits must be made with wires of the largest possible cross-section;

• it is forbidden to connect the device terminal "Common" with grounding lines.

Caution

After unpacking the device, make sure that it has not been damaged during transportation.

If the Device was kept for a long time at a temperature below minus 20 °С, then before turning it on and starting work, it should be kept in a room with a temperature corresponding to the operating range for 30 minutes.

To connect Device:

1. Connect the Device to a power source.

   Danger

   Before applying power to the Device, check that the supply voltage and its level are correct.

2. Connect primary transducers to the Device inputs.
3. Connect actuators to the Device outputs.
4. Apply power to the Device.
5. Set up the Device.
6. Power off the Device.

Screw terminals are located on the back wall (panel-mounting) or inside the device (wall-mounting).

The terminal block contacts assignment is shown in Figure.

Danger

If the device is powered from a DC voltage network, then terminals 3 and 4 of the screw terminal block must be interconnected by a jumper.

Danger

Inputs of the Device (pins 9 – 12 at the terminal block) support supply voltage from 0 to 24 V. Any voltage out of this range is prohibited.

Notice

To supply switching devices and sensors to the screw terminal block of the device, the supply voltage is derived (pins 13 and 14 of the terminal block). If power consumption of input exceeds the load capacity of the built-in power supply (24 V), then an external power supply with an output voltage of 12 to 34 V (24 V recommended) must be used for powering.

Scheme for connection of the switching devices to the inputs is shown in Figure.

Scheme for connection of passive and active sensors with an output n-p-n open-collector transistor or p-n-p is shown in Figures and accordingly.

Outputs can be made in the form of electromagnetic relays (P), transistor (K) or triac (C) optocouplers. The outputs are used for direct load control (on/off) or for control by more powerful elements: contactors, solid state relays, thyristors or triacs. The outputs are galvanically isolated from the circuit of the Device.

Scheme of connecting the load to the electromagnetic relay is shown in Figure.

A transistor optocoupler is usually used to control a low-voltage relay (up to 50 V), see Figure.

Danger

In order to avoid failure of the transistor due to the large self-induction current, it is necessary to install a VD1 diode (KD103 or similar type) in parallel to the relay coil.

The optosimistor is connected to the control circuit of the power triac through the limiting resistor R1 according to the scheme shown in Figure.

Notice

Nominal value of the resistor determines the current of the triac.

Optosimistor can also control a pair of anti-parallel connected thyristors (see Figure).

Danger

It is recommended to connect a filtering circuit (RC) to the terminals of thyristors or triacs in order to prevent breakdown due to high-voltage power surges in the network.

Functional diagram of the Device is shown in Figure.

The Device has four independent digital inputs for external control signals. You can connect to the inputs:

• switching devices (buttons, switches, reed switches, relays, etc.);

• sensors with output n-p-n-transistor with an open collector;

• sensors with output p-n-p-transistor.

The levels of the input signals are converted and processed in the matching unit and then sent to the digital signal processing unit that performs:

• filtering of input signals;

• counting pulses applied to the device inputs;

• conversion of the value from the counter into real physical value;

• comparing signal value to the setpoint before displaying;

• generation of signals for controlling the outputs according to a specified algorithm.

Control unit includes buttons for entering parameters of the device.

Display unit displays the measurement results or operating parameters on the indicators and shows the counter status using LEDs.

Internal power supply converts the supply voltage for all units of the device and generates a signal indicating the loss of supply voltage.

Elements of indication and control are located on the front panel of the device (see Figures and):

• seven-segment six-digit digital indicator;
• five LEDs;
• four/five buttons (depending on the type of housing).

LED States

LED	Status	Value
	Lights	Key lock is on
СБР	Lights	Input Reset is enabled
БЛК	Lights	Input Lock is enabled
СТАРТ/СТОП	Lights	Current device operation mode (pulse counting or stop)
ВЫХ	Lights	Output enabled

Buttons

Button	Operating mode	Function
	Operation	Reset counting register and device readings. Return to the current saved setpoint value during editing process
	Setup	Returning the value of the parameter before changing it during the editing process
	Operation	Change the values of setpoint
	Setup	View parameter values and edit them
Notice is not available on the housing Щ2.
	Operation	Select editable digit when changing parameter value (used with buttons and )
	Setup
	Operation	View and change the setpoint value (if the setpoint value is not locked)
	Setup	Enter and exit the settings group Enter and exit the parameter editing mode Save the new parameter value in non-volatile memory of the device

During operation (see Figure), the Device counts the number of pulses arriving at its counting input (input 1), converts this quantity into a physical value, and displays the value on the indicator.

The counter of the Device operates in the mode of direct counting (counting of pulses from zero upward). If the maximum counting value (999999) is exceeded, the number of counted pulses is reset and the counter continues counting.

The logic of the counter on the start/stop signal (input 2) is as follows:

• the first impulse (starting) comes to this input and enables the counting;

• when the next (stop) pulse arrives, the counting stops.

If there is an active Reset signal (input 3), the number of counted pulses is reset.

Block (input 4) prevents the transmission of the counting pulses to the Device input. While this signal is active, counting is blocked.

Danger

The setpoint is specified with the same accuracy as for counting physical values. The multiplier can be set from 0.00001 to 99999. The conversion of counting results (result of multiplying) will be rounded up.

The counter also filters the input signals with two filters. The first one filters the signal on the counting input by pulse duration (from 1 to 2500 Hz), the second filters signal on the control inputs of the Device (from 200 to 999999 μs).

The Setup mode is intended for viewing and editing the device parameters. New parameters are saved to non-volatile memory of the device.

To enter (or exit) the Setup mode, press and hold button for at least 2 seconds.

While editing, if no button is pressed within 2 min., device automatically returns to parameter view mode.

When device enters Setup for the first time, indicator shows PASS. Enter a new 4-digit password (default is 0000 ), save it and memorise. This password is further required for changing the device settings and for restoring factory settings (dEFAUL).

Notice

If you forgot your password, Setup mode can be entered with password 1098.

Structure of the device settings menu and sequence of pressing the buttons for setup is shown in Figure.

Since the FDP and DP parameters set restrictions on each other (the number of displayed digits after the decimal point in the counting results can not be larger than the number of digits after the decimal point of the entered multiplier), editing of parameters FDP, DP, F should be performed in the following sequence:

• to increase the number of displayed digits after the decimal point (decimal point offset to the left):

  • set parameter FDP;

  • set parameter F;

  • set parameter DP.

• to decrease the number of displayed digits after the decimal point (decimal point offset to the right):

  • set parameter DP.

  • set parameter FDP;

  • set parameter F.

Due to the restrictions imposed by the Dispenser mode (oUt= 2), it is recommended to change the mode of operation of the control unit in the following sequence:

• set parameter SPM;

• set parameter rSt;

• set parameter oUt.

Notice

The list of configurable parameters of the device and their possible values is shown in Appendix A.

Available types of counting (depending on the values of specified parameters) are presented in Table.

Types of counting

No.	Parameter			Illustration
1	Switched after setpoint (1)	Reset counter and continue counting (rStCnt)	Reset counter and continue counting (Cont)
Notice This combination of parameters only resets the counter and does not provide activation of the output.
2	Switched after setpoint (1)	Reset counter and continue counting (rStCnt)	Reset the counter and wait for signal "Start" (StoP)
3	Switched after setpoint (1)	Reset the counter and wait for signal "Start" (rStStP)	Reset counter and continue counting (Cont)
4	Switched after setpoint (1)	Reset the counter and wait for signal "Start" (rStStP)	Reset the counter and wait for signal "Start" (StoP)
5	Switched after setpoint (1)	Continue counting (Cnt)	Reset counter and continue counting (Cont)
6	Switched after setpoint (1)	Continue counting (Cnt)	Reset the counter and wait for signal "Start" (StoP)
7	Dispenser (2)	Reset the counter and wait for signal "Start" (rStStP)	Reset the counter and wait for signal "Start" (StoP)
8	Dispenser (2)	Continue counting (Cnt)	Reset the counter and wait for signal "Start" (StoP)

Safety measures (see Section ) should be observed during the maintenance.

The maintenance includes:

• checking the mounting of the device;
• checking the screw connections;
• removing dust and dirt from the terminal board of the device.

The device should be cleaned with a damp cloth only. No abrasives or solvent-containing cleaners may be used.

Configurable parameters

Parameter		Allowed values	Comments	Default
Designation	Item
	Setpoint	000000 – 999999	from 000000 to 99999	000000
oUt	Output mode	1	Switched after setpoint. The output is triggered if the number of counted pulses is greater than setpoint value or equal to it.	1
		2	Dispenser mode. The output is triggered if the number of counted pulses is in the range from zero to the setpoint value, and the last pulse that arrived at the “Start/Stop” input of the counter was the starting one.
FDP	Multiplier decimal point position	------	–	------
		-----.-
		----.--
		---.---
		--.----
		-.-----
F	Multiplier	0,00001 – 99999	from 0.00001 to 99999	1
DP	Decimal point position	------	–	------
		-----.-
		----.--
		---.---
		--.----
SPM	Operation type after reaching setpoint	Cnt	Continue counting without resetting	rStCnt
		rStCnt*	Reset counter and continue counting
		rStStP	Reset counter and stop counting The counter is waiting for the "Start" signal
rSt	Operation type to "Reset" signal	Cont*	Reset counter and continue counting	Cont
		StoP	Reset counter and stop counting The first impulse that came after the reset to the “Start/Stop” input will be considered as the starting one.
Notice * These parameters are not available in the Dispenser mode (oUt = 2).
FREQ	Frequency of input filter	1 – 2500	Filtering signals at the counting input of the device (from 1 to 2500 Hz) - filter 1. This parameter in the digital signal processing unit of the device is converted to the minimum pulse duration (tmin): t_{min} = {1\over2\cdot FrEq}	2500
Cnt.t	Minimum duration of the signal on the control inputs	200 – 999999	Filtering signals at the control inputs of the device (from 200 to 999999 μs) - filter 2	200
LoCK	Button lock	oFF	Buttons unlocked	oFF
		1	Reset counter button locked
		2	Reset and change of setpoints are blocked
dEFAUL	Restore factory settings	no	Do not restore settings	no
		YES	Restore settings
PASS	Password	0000 – 9999	from 0000 to 9999	0000