User Manual

Type summary
Type reference Operating
voltage
Positioning time
at 50 Hz
Control signal Connecting
cable
SSY31
AC 230 V
SSY81
AC 24 V
150 s 3-Punkt 1.5 m
SSY81 are UL and cUL approved.
Type reference Stock no, description
ASY98 ASY98
Retaining screw for terminal block connectors
Accessories
Ordering
Type reference Stock no. Description Quantity
SSY31 SSY31 Electromotoric actuator 3
Delivery
Actuators, valves and accessories are packed separately.
Overview tables, see page 6.
Rev. No.
Equipment c
ombinations
Type reference Type of valve k
vs
[m
3
/h] PN class Data sheet
VVP45..N
2-port valves 2.5…6.3 PN 16 N4840
k
vs
= nominal flow rate of cold water (5...30 °C) through the fully open valve (H
100
) at a differential
pressure of 100 kPa (1 bar)
Technical / mechanical design
When the actuator is driven by a 3-position signal, it produces a stroke which is
transmitted to the valve stem.
The description of operation in this document applies to the valve versions which
are fully closed without actuator (NC valves).
3-positio
n control
signal
Voltage at Y1: stem extends valve opens
Voltage at
Y2: stem retracts valves closes
No voltage at Y1 and Y2: actuator maintains its current position
• Plastic housing
• Locking-proof, maintenance-free gear train
• Manual override with hexagonal socket wrench 3 mm
• Reduced power consumption in the holding positions
• Load-dependent switch-off in the event of overload and in
stroke end positions
• Parallel operation of 6 SSY31 and 24 SSY81 possible,
provided the controllers’ output is sufficient
• Connecting cables with AC 24 V and AC 230 V
connectors cannot be mixed up
4891Z19
Features and benefits
Accessories
2 / 6
Siemens Electromotoric actuator CE1N4894en
Building Technologies 01.09.2010