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Siemens SQM5 Instructions d'exploitation Page 3

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SQM5… Reversing Actuators Technical Instructions
155-517P25
Rev. 1, July, 2000
Siemens Building Technologies, Inc. Page 3
Application
SQM5… actuators are uniquely suited for both industrial and commercial applications.
The high level of accuracy permits precise modulating control of industrial process and
process heating applications, often significantly enhancing performance and product
quality.
In commercial and industrial burner applications requiring high turndown and reliable
ignition, the auxiliary switches can be applied to create separate positions for burner
light off and low fire. In dual fuel applications, additional switches can be used to create
separate high fire, low fire and light off positions for each fuel. The “economy position”
switch is used to drive the actuator to the full closed position when the burner is off.
In all applications, commissioning is simplified. Shaft and switch cam drum
disengagement clutches allow for the quick manual alignment of the actuator shaft and
switch cams. The forward/reverse toggle switch in combination with the auto/manual
selector switch provides direct manual control.
Product Numbers
Table 1. Product Numbers for Pre-assembled UL/CSA/CE-Approved Actuators.
Torque
1
Running
Time
2
90°@
60 Hz
Input Control Signals
3
Number
of
switches
Product Number
For SQM5x.xx0xxxx shafts must be ordered separately
For shaft selection refer to Table 2.
lb-in sec Line
Voltage
4-20
mA
0-135
Ω
ΩΩ
Ω
0-10
Vdc
limit/
aux.
110 V 220 V 24 V
90
90
90
140
140
140
140
140
140
200
200
200
310
310
310
400
400
8
8
12
25
25
25
25
25
25
25
25
25
37
37
37
50
50
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
2/4
2/4
2/4
2/4
2/6
2/3
2/4
2/4
2/6
2/6
2/6
2/4
2/4
2/4
2/4
2/6
2/6
SQM50.260R1G4
SQM50.364R1G3
SQM50.464R1A3
SQM50.480R1Z3
3
SQM50.450R1A
SQM50.460R1G3
SQM50.460R1H3
SQM53.480R1Z3
3
SQM53.480R1G3
SQM53.460R1A
SQM56.560R1A
SQM56.560R1G4
SQM56.564R1H4
SQM56.680R1Z3
3
SQM56.680R1G3
SQM50.260R2A
SQM50.480R2Z3
3
SQM50.480R8Z3
3
SQM50.450R8A
SQM50.450R8G3
SQM50.450R8H3
1. Torque will vary with the selection of the shaft. See Specifications.
2. Running time for 135° ➔ multiply by 1.5 For 50 Hz ➔ multiply by 1.2
3. SQM5x.xxxxxZx models also accept a 0-20 mA input signal.
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