Product Overview

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Siemens Building Technologies Electro-hydraulic actuators for valves CM1N4564E
HVAC Products 13.02.2009
The LED status indication indicates operational status with dual-colored LED and is
visible with removed cover.
LED Indication Function Remarks, troubleshooting
Green Lit Normal operation Automatic operation; everything o.k.
Flashing
Calibration in progress Wait until calibration is finished (LED stops
flashing, green or red LED will be lit)
Faulty stroke calibration Check mounting
Restart stroke calibration (by short-circuiting
calibration slot)
Red Lit
Internal error Replace electronics
Flashing
Inner valve jammed Check valve
Both Dark
No power supply
Electronics faulty
Check mains network, check wiring
Replace electronics
As a general rule, the LED can assume only the states shown above (continuously red
or green, flashing red or green, or off).
Override control input can be operated in following different modes of operation
Z-mode
no function fully open closed override with
0...1000 Ω
Signal addition
SKB62UA only
Connections Transfer
linear or equal-
percentage
linear or equal-
percentage
linear or equal-
percentage
• Z-contact not
connected
• Valve stroke follows
Y-input
• Z-contact connected
directly to G
• Y-input has no effect
• Z-contact connected
directly to G0
• Y-input has no effect
• Z-contact connected
to M via resistor R
• Starting position at
50 Ω / end position
at 900 Ω
• Y-input has no effect
• Z-contact is
connected to R of
the frost protection
monitor QAF21.. or
QAF61..
• Valve stroke follows
signals Y
and R(Z)
Shown operation modes are based on the factory setting «direct acting»
Y-input has no effect in Z-mode.
Accessories
ASZ6.5
stem heater
01825
• for media below 0 °C
• mount between valve and actuator
Indication of
operating state
SKB62.., SKB60
Override control
input Z
SKB62.., SKB60
Note
SKB..