t.a.c. Forta M700 Manual

M700 is a spring return electro-mechanical actuator for the
control of two-way and three-way plug valves in:
• domestic hot water systems
• heating systems
• air handling systems
M700 is either controlled by an increase/decrease signal or
by a modulating 2–10 V control signal. Modulating control
makes for a faster positioning of the actuator.
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 16 V DC
voltage supply for older TAC controllers.
TECHNICAL DATA, M700
Part numbers ........................ see the table on the next page
Supply voltage .................. 24 V AC +25%/ -30%, 50–60 Hz
Power consumption ....................................... average 30 VA
Transformer sizing ........................................................ 50 VA
Running time:
Modulating 10-25 mm (0.39 - 1 in.) ............................. 15 s
Modulating 25-32 mm (1 - 1.26 in.) ............................. 20 s
Modulating 10-52 mm (0.39 - 2.05 in.) ....................... 30 s
Increase/decrease ............................................ 300 s/60 s
Spring return close off time at power failure:
Less than 35 seconds ............................. 20 mm (0.78 in.)
Less than 65 seconds.................................45 mm (1.77 in.)
Stroke ........................................ 9–52 mm (0.35 - 2.04 in.)
Factory set stroke .................................... 20 mm (0.78 in.)
Thrust ............................................................. 700 N (180 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
Subject to modification.
TAC Forta M700
Spring return actuator for valves
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. 50 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 plastic
Color ........................................................................ black/red
Weight ............................................................ 1.8 kg (3.96 lb.)
Dimensions (mm) .......... refer to the table on the next page
Third Party approval ....................................................... TUV
1 (6)
G-40-50
14 Mar 2007
TUV
APPROVED
0-003-3263-2 (EN)