3 (8)
0-003-2063-2 (EN)
The actuator may be mounted
horizontally, vertically and in any
position in between, but
not
upside
down, see figure 3.
N.B.!
Do not use the actuator for the
DN15 valves V298, V282, V294, V384,
V386 and V394.
To mount the actuator on a valve, slide
the actuator onto the valve neck, thus
making the square nut on the valve
spindle fit into the groove on the cross
bar. Then slide the brace into the
groove on the valve neck and secure
the nuts.
Figure 3
MOUNTING
STS is a processor controlled, battery
operated safety device which monitors
the presence of supply voltage to Forta
actuators. The device supplies the
actuator with power so that the actuator
is able to close the valve in the event of
a loss of power.
The battery is tested periodically during
normal operation. Moreover, it is
charged continuously for maintenance
purposes.
Batteries for the STS uses NiCd.
SELF TESTING SAFETY DEVICE, STS
Figure 4
TECHNICAL DATA, STS
Supply voltage, G ........................................ 24 V AC ±10 %
G0 ........................................................................... return
Output voltage AC-DC, GF .......................... 24 V DC ±10 %
G0F ......................................... return, alt. 24 V AC ±10 %
Time to toggle AC to DC ......................................... max. 5 s
DC voltage supplied during .......................................... 70 s
Inputs:
Battery A ..................................... 8,4 V DC–min 600 mAh
Outputs:
Battery B, “rapid charging” ................................... 115 mA
Alarm outputs KC, K1 and K2
............................................ 2 A–24 V AC two-way SPDT
Indication:
Green LED ............................................ Normal operation
Red LED .................................................................. Alarm
Red LED on circuit board ........... Rapid charging is active
Settings:
Bypass MAN ............................ no jumper, external button
Bypass AUTO ........................ jumper on, internal function
Ambient temperature ......... –10 °C – +50 °C (14°F - 122°F)
Ambient humidity ............................................ max 65 % RH
Enclosure rating ........................................................... IP 44
Standards:
Emission ............................................... EN 50081-1:1992
Immunity ............................................... EN 50082-1:1992
Heat ................................................................. IEC-68-2-2
Cold ................................................................. IEC-68-2-1
Materials:
Box ...................................................... PC Makrolon 8035
Lid ....................................................... PC Makrolon 8035
Bracket ............................................................. SS 1412-2
Color ............................................................................ black
Weight, including battery ............................... 0.3 kg (0.7 lb.)
Dimensions .............. please refer to the dimension drawing
