TAC Forta M400 - User Manual

1 (6) 0-003-2060-5 (EN)Subject to change.
M400 is an electro-mechanical actuator for the control of
two-way and three-way plug valves in:
• heating systems
• air handling systems
M400 is primarily designed for applications where the
demands on actuator speed and thrust are small.
The actuator can not be equipped with Self Testing
Device STS.
M400 is either controlled by an increase/decrease signal
or by a modulating 0–10 V control signal.
The electronic circuitry of the actuator ensures that the
running time is the same, regardless of the stroke of the
valve in question.
It is easy to mount and connect the actuator. It can be
mounted directly onto TAC’s control valves, without any
mounting kit.
For Satchwell valves a linkage is included (see PART
NUMBERS on page 2)
The working range of the actuator is adjusted
automatically depending on the stroke of the valve. The
electronic circuitry of the actuator then takes care of the
adjustment of the valve end positions.
The actuator is supplied by 24 V AC. It can provide a
position indicator signal 2-10 V and a 16 V DC voltage
supply for older TAC controllers.
Actuator for Valves
G-40-22
20 Nov 2006
TECHNICAL DATA, M400
Part numbers ........................ see the table on the next page
Supply voltage ..................24 V AC +25%/ -35%, 50–60 Hz
Power consumption ......................................... average 6 VA
Transformer sizing ........................................................30 VA
Running time:
Modulating .................................................................... 60 s
Increase/decrease ............................................ 300 s/60 s
Stroke ............................................ 9–32 mm (0.35 - 1.26 in.)
Factory set stroke .................................... 20 mm (0.79 in.)
Thrust ................................................................ 400 N (90 lbf)
Duty cycle ........................................... max. 20%/60 minutes
Analog input:
Voltage ..................................................................... 0–10 V
Impedance ........................................................ min 100 kΩ
Digital inputs VH–VC:
Voltage across open input .................................... 24 V AC
Current through closed input ..................................... 5 mA
Pulse time ..........................................................min. 20 ms
Output G1:
Voltage ....................................................... 16 V DC ±0.3 V
Load............................................ 25 mA, short-circuit proof
Output Y:
Voltage ..................................................... 2-10 V (0-100%)
Load ............................................................................ 2 mA
Ambient temperature:
Operation .............................. –10 – +50 °C (14°F - 122°F)
Storage .................................. –10 – +50 °C (14°F - 122°F)
Ambient humidity ..............................................max. 90% RH
Enclosure rating ............................................................. IP 54
Sound power level............................................. max. 32 dBA
Standards:
Emission ................................................. EN 50081-1:1992
Immunity ................................................. EN 50082-1:1992
Heat ................................................................... IEC-68-2-2
Humidity ............................................................ IEC-68-2-3
Cold ................................................................... IEC-68-2-1
Vibration ............................................................ IEC-68-2-6
Material:
Housing ...............................................................aluminium
Cover .......................................................... ABS/PC plastic
Color.............................................................. aluminium/black
Weight ............................................................. 1.8 kg (3.96 lb)
Dimensions ..................... refer to the table on the next page
TAC Forta M400

Summary

Part Numbers

Dimensions

Functionality of the Forta Actuator

The Actuator

Describes the electro-mechanical operation of the actuator via a DC motor and screw mechanism.

Control Signal

Explains how the M400 can be controlled by increase/decrease or variable direct voltage signals.

Manual Operation

Details the manual operation handle and its function when lowering the motor.

Position Feedback

Describes the 2-10 V DC position feedback signal indicating valve open/closed status.

End Point Switches

Explains the function of end point switches for sequenced actuator control.

Mounting Instructions

Electrical Connections

Wiring Examples

Settings and Configuration

Valve Closing Screw Direction

Sets the direction the actuator screw moves to close the valve (IN/OUT).

Control Signal (MOD;INC)

Selects between variable voltage (MOD) or increase/decrease (INC) control signals.

Sequence or Parallel Control

Configures simultaneous control of two actuators/valves using voltage range selection.

Voltage Range (0-10 V;2-10 V)

Selects the input control signal voltage range, either 0-10V or 2-10V.

Part of Voltage Range

Chooses whether to use the lower (0-5V/2-6V) or upper (5-10V/6-10V) part of the voltage range.

Running Time (60 s;300 s)

Sets the actuator running time for increase/decrease control, either 60s or 300s.

Security Function (0%;50%)

Configures the actuator's behavior upon loss of control signal, e.g., half open or closed.

Direction of Movement (NORM;INV)

Inverts the actuator's movement direction relative to the control signal's increase/decrease.

Linearization (NORM;LIN;LG)

Modifies the motorized valve characteristics to be near-linear or "Quick open".

End Position Adjustment (OP;ADJ)

Initiates automatic adjustment of the actuator's end positions for commissioning.

Actuator Installation

Maintenance

Accessories

TAC Forta M400 Specifications

General

Brand	TAC
Model	Forta M400
Category	Controller
Language	English