Siemens SQM5 Instructions d'exploitation télécharger pdf (Page 13)

SQM5… Reversing Actuators Technical Instructions

155-517P25

Rev. 1, July, 2000

Siemens Building Technologies, Inc. Page 13

Example of limit switch I and III

and trim potentiometer settings

Switch III setting

Switch I setting

0 deg.

EA0562R1

MIN trim potentiometer setting

MAX trim potentiometer setting

90 deg.

Figure 13. Switch cam and trim

potentiometer setting.

NOTE: The actual minimum and maximum

modulating range is determined either

by the setting of the MIN and MAX trim

potentiometers or the setting of Switch

Cam III (Minimum) and Switch Cam I

(Maximum). The actuator can never

modulate outside of the range set by

switch cam I and III. If the MIN and MAX

trim potentiometers are set outside the

setting range of switch cams I and III,

then the switch cam settings determine

the modulating range. If a soft stop is

desired, the modulating range can be

defined by the trim potentiometers if the

MIN and MAX trim potentiometers are

set inside the setting range of switch

cams I and III. See the example in

Figure 13.

Position Indicating Dial

Adjustment

See

Figure 6

The actual position of the SQM5… actuator is indicated by the gray actuator position

indicating pointer. The position is also indicated by the dial pointer. Ensure that the

actuator position indicating dial is aligned with the actuator position scale by rotating the

dial in the clockwise direction if necessary.

CAUTION:

Turning the dial in the counterclockwise direction may loosen the

potentiometer locking screw.

Cover Installation

Lift the two screws on the cover corners and slide the cover end into the groves at the

gear end of the actuator. See Figure 14.

Press the cover into place and then press the screws inward and tighten. See

Figure 15.

EA0567R1

Figure 14.

EA0563R1

Figure 15.

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 27 28

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Siemens SQM5 Instructions d'exploitation Page 13

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