Coelbo SWITCHMATIC 3 plus - User Manual

1
SWITCHMATIC 1 / 1 plus
SWITCHMATIC 2 / 2 plus
SWITCHMATIC 3 / 3 plus
ADVANCED SETTINGS
Risk of damaging the pressure assemblies and/or the plant.
Risk by electric shock.
Risk for people and/or objects.

Summary

Advanced Settings

Electric Shock Hazard

Warning about the danger of electric shock.

Risk to People and Objects

Warning about risks to people and objects.

Hydraulic Installation

Electric Connection

Control Panel Elements

Startup Procedure

Synchronization Setup

Warnings and Alarms

Dry-Running Alarm (Switchmatic 2)

Detects dry-run operation, stops pump, and attempts automatic restart.

Dry-Running Alarm (Minimum Pressure)

Detects dry-run based on minimum pressure thresholds.

Overload Alarm

Activates when nominal pump current is exceeded, with automatic reset attempts.

Fast Cycling Alarm

Damaged Pressure Transmitter

Pressure Sensor Calibration

Zero Regulation

Full Scale Calibration

Overview

1. Function Description
2. Important Technical Specifications
3. Usage Features
4. Maintenance Features

This document describes the SWITCHMATIC series of electronic pressure switches, including models 1, 2, and 3.

Function Description

The SWITCHMATIC series are electronic pressure switches with integrated digital manometers designed to manage the start and stop of single-phase pumps.

SWITCHMATIC 1:

• Manages the start and stop of a single-phase pump up to 2.2kW (3 HP).
• Cut-in and cut-out pressures are easily adjustable via the control panel.
• Operates as a differential pressure switch or a reverse pressure switch.

SWITCHMATIC 2:

• Includes all features of SWITCHMATIC 1.
• Provides instantaneous reading of current drawn.
• Controls and manages overcurrent, dry-run operation, and fast-cycling.
• Offers the option to be synchronized with another SWITCHMATIC 2 unit to manage and protect two pumps operating in cascade with an alternated starting sequence (Groupal mode).

SWITCHMATIC 3:

• Includes all features of SWITCHMATIC 1.
• Ideal for control panels as it has a dry contact output.

Operating Characteristics (Common to all models, unless specified):

• Adjustable cut-in and cut-out pressures.
• Integrated digital pressure gauge with bar and psi indication.
• Inner pressure transmitter.
• Dry-run protection:
  • Through minimum adjusted height for basic SWITCHMATIC 1/3.
  • Through instantaneous current consumption (only SW2).
• Overcurrent protection (only SW2).
• Overvoltage protection.
• ART Function (Automatic Reset Test): When the device stops the pump due to dry-running, ART attempts to restart the pump on a scheduled basis to restore water supply. This function must be activated in step 6 of the ADVANCED MENU (Ar1).
• Fast cycling protection: Activated when the hydropneumatic tank has lost too much air, leading to frequent start-stop cycles. This alarm delays the pump start (rc1) or stops the pump (rc2).
• Manual start push-button (ENTER).
• 3 operation modes: differential, reverse, and synchronized.
• Control panel with 3-digit display, LED indicator lights, and push-buttons.
• Available settings: Stand-by mode, minimum period between fast cycles, start and stop delay.
• Volt-free contact for monitoring alarms (only version A).

Important Technical Specifications

Classification and Type:

• According to IEC 60730-1 and EN 60730-1.
• Control sensor device, electronic, independent assembly.
• Programming type A with action type 1B (microdisconnection).
• Operating value: I <20% I learned.
• Pollution degree 2 (clean environment).
• Rated impulse voltage: cat II / 2500V.
• Temperatures for ball test: enclosure (75°C) and PCB (125°C).

Technical Characteristics:

• Rated motor power: 0.37-2.2 kW (SW1-SW2).
• Power supply:
  • ~1 x 110-230 V (SW1-SW2).
  • ~1 x 48-230 Vac/Vdc (SW3).
• Electric outlet: Dry contact (SW3).
• Nominal pressure: 1MPa/10bar (plus: 1.3MPa / 13bar).
• Frequency: 50/60Hz.
• Max. current: 16 A, cos φ ≥ 0.6.
• Protection degree: IP55.
• Max water temperature: 50°C.
• Max environment temperature: 60°C.
• Cut-in range (start pressure): 0.5-7 bar (version plus=11 bar).
• Cut-out range (stop pressure): 1-8 bar (version plus=12 bar).
• Max. differential (Pstop-Pstart): 7.5 bar (version plus=11.5 bar).
• Minimum differential (Pstop-Pstart): SW: 0.5 bar, SW2 synchro: 1 bar.
• Factory setting (start/stop): 3/4 bar.
• Hydraulic inlet: G1/4" Female - NPT 1/4" Fem.
• Net weight (without cables): 0.3 kg.

Dimensions (approximate):

• SWITCHMATIC 1/2: 85mm (width) x 100mm (height) x 77.5mm (depth), with an additional 50mm for the cable gland and 74.5mm for the pressure connection.
• SWITCHMATIC 2A/3/3A: 116mm (width) x 77.5mm (height) x 75mm (depth), with an additional 50mm for the cable gland.

Alarm Monitoring (SW3):

• Contact Rating:
  • Max. switching voltage: 230VAC / 220 VDC.
  • Max. switching power: 62.5VA / 30W.
• Cable: max. 1.5mm², min. 0.2mm².

Usage Features

Installation:

• Hydraulic Installation: Must be threaded to a G1/4" male fitting at the pump's outlet. Verify proper hydraulic system installation, especially if the hydropneumatic tank is pressurized.
• Electric Connection: Must be performed by qualified personnel in compliance with local regulations. Disconnect from electric supply before manipulations. Use a differential switch (I = 30 mA, clase A or AC) and a magnetothermic switch adapted to the motor load. Power supply must be between 115-230V (SW1-2). Use H07RN-F 3G1 or 3G1.5 cables. Earth connections are compulsory and the earth conductor must be longer than others.

Control Panel (Diagram C):

• Display: Shows instantaneous pressure or current, adjusted start/stop pressure (blinking), adjusted rated current (blinking, SW2 only), or alarm codes.
• LEDs: Indicate lit, slow-flashing, or fast-flashing states for various functions (e.g., pump operating, adjusting pressure, alarms).
• Buttons: Used for validation, adjusting values, and manual start.

Startup Procedure:

1. Set Rated Current (SW2 only): Press and hold for 3 seconds. Adjust the rated current using the arrow buttons and validate.
2. Start Device: Press the ENTER button.
3. Set Cut-in (Start) Pressure: Press and hold for 3 seconds. Adjust the start pressure (0.5 to 7 bar) and validate.
4. Set Cut-out (Stop) Pressure: Press and hold for 3 seconds. Adjust the stop pressure (1 to 8 bar) and validate.
5. Further optional adjustments can be made via Basic and Advanced Menus.

Basic Menu (Diagram C):

• Accessed by pressing and holding START and STOP simultaneously for 5 seconds.
• Parameters:
  • BAR/P: Selects pressure units (bar or psi).
  • rc0/rc1/rc2: Fast-cycling alarm settings (disabled, activated with start delay, or activated with pump stop).
  • r.01-r.99: Sets maximum time period between 3 consecutive starts for fast-cycling detection (1-99 seconds).
  • Sb0/Sb1: Stand-by mode activation (for low power consumption) or disable.

Advanced Menu:

• Accessed by pressing and holding START and STOP simultaneously for 5 seconds.
• Parameters:
  • nc/no: Selects operation mode (conventional pressure switch or reverse pressure switch).
  • E00/E01/E02 (SW2 only): Selects individual, Master/Slave, or Slave operation mode for group installations.
  • d.05/d.1 (SW2 only): Sets minimum gap between Pstart 1 and Pstart 2, and Pstop 1 and Pstop 2.
  • ct0-ct9: Sets start time delay (0-9 seconds).
  • dt0-dt9: Sets stop time delay (0-9 seconds).
  • Ar0/Ar1: Activates/disables the automatic restore system (ART).
  • P0.0-Px.x: Sets minimum operating pressure for dry-running detection (useful for SWITCHMATIC 1/3).
  • t05-t99: Sets time period below minimum operating pressure for dry-running (5-99 seconds).
  • c10-c30: Sets percentage of nominal current for overcurrent protection.
  • rS0/rS1: Restores default values.

Synchronization (SW2 only):

1. Go to Advanced Menu: Set E01 for master unit, E02 for slave unit.
2. Set identical gap parameters (d.XX) between pressures for both units.
3. Set identical cut-in and cut-out pressures. Minimum difference between start and stop pressures must be at least 1 bar.
4. Disable units (display "OFF"), then activate synchronization.
5. After 10 cycles, E01 displays pressure, E02 displays current.

Maintenance Features

Pressure Sensor Calibration:

• Zero Regulation:
  1. Open taps to release hydraulic net pressure.
  2. Press START and STOP simultaneously until display shows "0.0" flashing.
  3. Press ENTER to validate.
• Full Scale Calibration:
  1. Start pump until cut-out.
  2. Press START and STOP simultaneously until display flashes a figure.
  3. Adjust pressure with arrow buttons to desired pressure.
  4. Press ENTER to validate.
• Note: Pressure sensor decalibration is not a normal event. If it occurs frequently, contact technical service.

Warnings and Alarms:

• A01 - Dry-running (SW2 only): Pump stops automatically. Can be manually restored by ENTER. If ART is enabled, attempts to restart are made at 5-minute and then 30-minute intervals for 24 hours. Persistent alarms become definitive.
• A11 - Dry-running (by minimum pressure): Displayed if pressure is below minimum set pressure (Px.x) for a set period (txx). Restored automatically if pressure exceeds minimum. Can be manually restored by ENTER.
• A02 - Overload (SW2 only): Activated when nominal pump current is exceeded. 4 automatic reset attempts are performed before a final alarm. Can be manually restored by ENTER.
• A04 - Fast Cycling (Hammering): Activated when 3 consecutive cycles occur within a set time range. If rc1 is active, it adds 5 seconds to start delay. If rc2 is active, the pump stops. Reset by ENTER.
• A05 - Damaged Pressure Transmitter: Contact supplier.

Safety Information:

• Risk of damaging pressure assemblies and/or the plant.
• Risk of electric shock.
• Risk for people and/or objects.

Coelbo SWITCHMATIC 3 plus Specifications

General

Power supply	230 V AC
Frequency	50/60 Hz
Maximum Current	16 A
Maximum Power	3 HP
Operating Temperature	-10°C to 60°C
Number of channels	3
Switching voltage	230 V AC
Protection class	Class II