FlowCon FN.0.2 - User Manual

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Summary

Fitting and Re-fitting

Actuator Installation Warning

Do not connect power before fitting the actuator or install in closed position to prevent valve damage.

Mounting the Actuator

Mount actuator on valve and finger tighten the connection union. Do not use additional tools.

Actuator Removal Procedure

Electrically open actuator via DIP switch #6 (FN.0.2/FN.0.4) or retract spindle (FN.0.2-BUS) before loosening union.

Orientation

Allowed Installation Orientations

Upside-down installation is permitted along with standard horizontal and vertical orientations.

Wiring

FlowCon FN (analog) Wiring

Wiring details for FN.0.2 0-10V modulating actuator, including input and feedback signals.

FN.0.2-BUS Actuator RS-485 Serial Wiring

Wiring diagram for FN.0.2-BUS actuator using RS-485 serial communication (D+, D-, P1, P2).

FlowCon FN (digital) Actuator Wiring

Wiring for FN.0.4 2-Position (Normally Closed) and 3-Point Floating (Normally Closed) actuators.

Sequences and Modes

Start-up Sequence

Actuator calibrates to closing point upon power-up, then enters normal operation mode.

Auto Cycle Sequence

Prevents valve jamming by performing 50% stroke cycle every 3 weeks if no movement occurs.

Electrical Override

Activates valve full opening via DIP switch #6, indicated by blinking red/green LED.

Manual Spindle Override

Allows manual valve operation (open/close) using a magnet on the actuator's right side.

Flush Mode (FN.0.2-BUS)

Temporarily opens valve fully, independent of control signal, for system flushing.

DIP Switch Settings

FlowCon FN.0.2 Actuator DIP Switches

Configuration of DIP switches #1-6 for FN.0.2 functions like override, signal type, and auto cycle.

FlowCon FN.0.2-BUS Actuator DIP Switches

Settings for FN.0.2-BUS DIP switches #1-8 for Modbus/BACnet, BIT settings, and terminal resistor.

LED Status Indicators

FN.0.2 LED Status

LED indications for FN.0.2: green (normal), blinking green (calibration), blinking red/green (override), red (failure).

FN.0.2-BUS LED Status

LED indications for FN.0.2-BUS: green (normal), flickering green (bus comms), blinking yellow (manual spindle).

FN.0.4 LED Status

LED indications for FN.0.4: green (normal), blinking green (calibration), blinking red/green (override), red (failure).

Re-Calibration

FN.0.2 Re-Calibration Methods

Forced re-calibration via DIP switch #6 toggle or electrical 10V-2V signal sequence.

FN.0.2-BUS Re-Calibration

Re-calibration via BACnet (MSV.1=2) or Modbus (register 138=1).

FN.0.4 Re-Calibration

Forced re-calibration via DIP switch #6 toggle.

BUS Programming

BUS Programming of FlowCon FN.0.2-BUS

Setting Baud Rate, DIP switches, MAC address, and selecting PICV valve type and control mode.

Condition of the FN.0.2-BUS through BUS

Checking Current Flow, Status Information, Error Information, and service commands via bus.

The FlowCon FN.0.2, FN.0.2-BUS, and FN.0.4 are electrical actuators designed for precise control in HVAC systems. These actuators are part of the FlowCon International product line, manufactured by Griswold Controls LLC./FlowCon International Company.

Function Description:

The FlowCon FN.0.2 is a 24V modulating actuator, providing continuous control based on an input signal. The FN.0.2-BUS is also a 24V modulating actuator but includes Modbus or BACnet communication capabilities, allowing for integration into building management systems (BMS). The FN.0.4 actuator offers 24V 3-point floating and 2-position control, suitable for applications requiring simpler on/off or incremental adjustments.

Important Technical Specifications:

FN.0.2 Actuator (Analog):
- Input signal: 0(2)-10V DC, <0.5mA.
- Feedback signal: 0(2)-10V DC.
- Power: 24V AC/DC.
- Control signal range: Can be configured for 2-10V or 0-10V via DIP switches.
- Control characteristic: Can be set to Equal percentage or Linear via DIP switches.
- Normally Open/Closed: Configurable via DIP switches.
- Auto Cycle: Can be activated via DIP switch #1.
FN.0.2-BUS Actuator (RS-485 Serial):
- Communication: RS-485 Serial (Modbus or BACnet).
- Power: 24V AC/DC.
- DIP switches: Used for setting terminal resistor, Modbus/BACnet selection, and address bits (BIT 0 to BIT 5).
- Operating Mode: Set via register 200=0 or MSV.4=1.
- Control Signal: Provided in register 400 or AV.1 (0% to 100%).
- Current Flow: Check in register 402 or AI.7.
- Status Information: Available in BI.3 and BI.7 (Modbus register 318 and 407).
- Error Information: Available in BI.4, BI.5, BI.6, and BI.7 (Modbus register 318 and 407).
- Service Commands and Resetting: Available in register 138 or MSV.1.
- Baud Rate: Set via register 105 or MSV.7.
- MAC Address: Set via bus communication (register 104 or AV.28).
- PICV valve selection: Via register 110 or MSV.8.
- PICV control mode: Via register 103 or MSV.13 (linear or Equal%).
FN.0.4 Actuator (Digital):
- Control type: 2-Position, Normally Closed or 3-Point Floating, Normally Closed.
- Power: 24V AC/DC.
- Reaction time: 0.8 seconds from power signal to movement start.
- Electrical override: Activated via DIP switch #6.

Usage Features:

Fitting and Re-fitting:
- Actuators are supplied in an open position to facilitate commissioning.
- Mounting is done by finger-tightening the connection union; no additional tools are needed.
- Important Safety Note: Do not connect power to the actuator unless it is already fitted on the valve. NEVER install the actuator in a closed position, as this can damage the valve.
- For removal, it is recommended to electrically open the FN.0.2 and FN.0.4 actuators by activating DIP switch #6. For FN.0.2-BUS, set DIP switches #1-6 to OFF and wait for the LED to blink green before disconnecting power and loosening the union. Ensure the actuator is electrically opened before re-fitting.
Orientation:
- The actuators support upside-down installation, as well as standard horizontal and vertical orientations, providing flexibility in mounting.
Start-up Sequence:
- Upon power-on, the actuator automatically calibrates to determine the closing point.
- For FN.0.2-BUS, bus address configuration is required immediately after the first power-on, followed by calibration and normal operation.
Auto Cycle Sequence:
- This feature prevents valve jamming due to prolonged inactivity.
- For FN.0.2 and FN.0.4, it's activated by moving DIP switch #1 from OFF to ON. The actuator will then perform a 50% stroke cycle every 3 weeks if no movement has occurred.
- For FN.0.2-BUS, Auto Cycle is activated and configured via the bus (Modbus register 136 and BACnet AV.10; 0 = not activated).
Electrical Override:
- For FN.0.2 and FN.0.4, moving DIP switch #6 from OFF to ON activates electrical override, causing the valve to open fully. The LED indicator will blink red and green during this mode. Returning DIP switch #6 to OFF initiates re-calibration and returns to normal operation. This is performed with power supply on.
Manual Override (FN.0.2-BUS):
- Set DIP switches 1 to 6 to OFF. The spindle will fully retract, and the LED will rapidly blink green, indicating "mounting position" mode.
- To extend the spindle and fully close the valve, briefly swipe a magnet along the right-hand side of the actuator. The LED will blink yellow during this "manual spindle adjustment" mode.
- To retract the spindle and open the valve fully, swipe the magnet again. The LED will rapidly blink green. This process can be repeated as needed.
Flush Mode (FN.0.2-BUS):
- Activated and configured via the bus (Modbus register 132 and BACnet AV.35; 0 = not activated).
- In Flush Mode, the valve temporarily opens fully, independent of the control signal, to facilitate system flushing.
DIP Switch Settings:
- DIP switches are located under the connection cover. They are used to configure valve functions. Factory setting for all switches is OFF.
- FN.0.2: Configures electrical override, control characteristic (equal percentage/linear), normally open/closed, control signal range (2-10V/0-10V), and auto cycle.
- FN.0.2-BUS: Configures terminal resistor, Modbus/BACnet selection, and address bits (BIT 0 to BIT 5).
- FN.0.4: Configures electrical override and normally open/closed.
LED Status:
- A transparent connection cover allows visibility of the LED indicator, which provides various status indications:
  - Full on green: Normal operation mode.
  - Blinking green: Calibration mode (closing point adjustment).
  - Flickering green (FN.0.2-BUS): Bus communication mode.
  - Rapid blinking green (FN.0.2-BUS): Mounting position mode.
  - Blinking red/green: Electrical override mode.
  - Blinking yellow (FN.0.2-BUS): Manual spindle adjustment.
  - Full on red: Perpetual failure mode.
  - Charging mode (60 sec) and Failsafe mode also have specific LED indications (n/a for some models).

Maintenance Features:

Re-Calibration:
- FN.0.2:
  1. Flip DIP switch #6 from OFF to ON and back to OFF on the relevant actuator.
  2. Provide the electrical control signal sequence 10V-2V-10V-2V-10V-2V to the grey wire within 60 seconds for concurrent re-calibration of all modulating actuators.
- FN.0.2-BUS: Change MSV.1 to 2 (BACnet) or register 138 to 1 (Modbus).
- FN.0.4: Flip DIP switch #6 from OFF to ON and back to OFF on the relevant actuator.
- After re-calibration, the actuator returns to normal operation mode.

This paper serves as a supplement to the FlowCon General Instruction. The latest release of any FlowCon material is available on www.flowcon.com. FlowCon International assumes no responsibility for mistakes, if any, in any printed material.

FlowCon FN.0.2 Specifications

General

Brand	FlowCon
Model	FN.0.2
Category	Controller
Language	English

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