Product Overview

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Siemens Building Technologies Electro-hydraulic actuators for valves CM1N4564E
HVAC Products 13.02.2009
Setting the stroke limit control Setting the sequence control
The rotary switches LO and UP can be used
to apply an upper and lower limit to the stroke
in increments of 3%, up to a maximum of 45%
The rotary switches LO and UP can be used
to determine the starting point or the operating
range of a sequence.
LO
UP
100 %
y
0 ... 45 %
100 ... 55 %
100 %
y
LO
0 ... 15 V
UP
3 ... 15 V
Position
of LO
Lower stroke
limit
Position
of UP
Upper stroke
limit
Position
of LO
Starting point for
sequence control
Position
of UP
Operating range
of sequence
control
0 0 % 0 100 % 0
0 V
0 10 V
1 3 % 1 97 % 1 1 V 1 10 V *
2 6 % 2 94 % 2 2 V 2 10 V **
3 9 % 3 91 % 3 3 V 3 3 V ***
4 12 % 4 88 % 4 4 V 4 4 V
5 15 % 5 85 % 5 5 V 5 5 V
6 18 % 6 82 % 6 6 V 6 6 V
7 21 % 7 79 % 7 7 V 7 7 V
8 24 % 8 76 % 8 8 V 8 8 V
9 27 % 9 73 % 9 9 V 9 9 V
A 30 % A 70 % A 10 V A 10 V
B 33 % B 67 % B 11 V B 11 V
C 36 % C 64 % C 12 V C 12 V
D 39 % D 61 % D 13 V D 13 V
E 42 % E 58 % E 14 V E 14 V
F 45 % F 55 % F 15 V F 15 V
* Operating range of QAF21.. (see below)
** Operating range of QAF61.. (see below)
*** The smallest adjustment is 3 V; control with 0…30 V is only possible via Y.
Setting the signal addition
The operating range of the frost protection
monitor (QAF21.. or QAF61..) can be defined
with rotary switches LO and UP.
Position
of LO
Sequence control
start point
Position
of UP
QAF21.. / QAF61..
operating range
0 1 QAF21..
0 2 QAF61..
In order to determine the stroke positions 0 % and 100 % in the valve, calibration is
required on initial commissioning:
Prerequisites
• Mechanical coupling of the actuator SKB6.. with a Siemens valve
•
Actuator must be in «Automatic operation» enabling stroke calibration to
capture the effective 0 % and 100 % values
• AC 24 V power supply
• Housing cover removed
Calibration
01124
green LED flashes;
position feedback U
inactive
1. Short-circuit contacts in calibration slot
(e.g. with a screwdriver)
2. Actuator moves to «0 %» stroke position (1)
(valve closed)
3. Actuator moves to «100 %» stroke position (2)
(valve open)
4. Measured values are stored
0%
t
100%
Stroke
1
2
3
4567Z09
Normal operation
5. Actuator moves to the position (3) as
indicated by signals Y or Z
green LED is lit permanently;
position feedback U active, the values
correspond to the actual positions
A lit red LED indicates a calibration error.
The calibration can be repeated any number of times.
Stroke limit control
and sequence control
SKB62UA
Stroke control with
QAF21.. / QAF61..
signal addition
SKB62UA only
Calibration
SKB62.., SKB60