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Wiring
!
WARNING: Risk of Electrical Shock.
Disconnect all power supplies before wiring
connections are made or prior to performing
maintenance. More than one disconnect may be
necessary to remove power from the actuator and
auxiliary switch. Make sure all unused wire leads are
insulated to avoid the risk of electrical shock.
!
CAUTION: Risk of Equipment Damage.
Check all wiring connections before applying power
to the system. Short-circuited or improperly
connected wires result in permanent damage to the
equipment.
IMPORTANT:
Make all wiring connections in
accordance with the national and local regulations.
Use proper Electrostatic Discharge (ESD)
precautions during installation and servicing to avoid
damaging the actuator's electronic circuits.
Refer to Figure 8 to wire the applicable M9206-Bxx-1S
model.
On/Off Control
Models: BDx
2
L1
1
N
On/Off Control
Models: BGx
~
2
1
Auxiliary Switch
Models: BxB-1S
23
NO
22
NC
21 COM
Figure 8: Wiring Diagrams for M9206-Bxx-1S
Models
4
M9206-Bxx-1S Series On/Off Electric Spring Return Actuators Installation Instructions
Auxiliary Switch (BxB Models)
The M9206-BxB models have a built-in auxiliary switch
with a switch adjuster accessible on either face of the
actuator. (See Figure 1 and Figure 2.) The factory
setting is 20°, nominal. Refer to Auxiliary Switch
Rating in the Technical Specifications section.
!
WARNING: Risk of Electrical Shock.
Make sure all unused auxiliary switch leads are
insulated to avoid the risk of electrical shock.
The switch point is independently and continuously
adjustable from 0 to 90°. For the most accurate
positioning of the switch, refer to Figure 9 and use the
method in the following example.
To change the trip point:
1. Position the actuator in the full spring return
position.
Note: The switch is factory set to trip when the
actuator reaches the 20° position.
2. Turn the switch adjuster until it points to the
desired switch trip point.
4050
Switch
Adjuster
Figure 9: Switch Trip Point Settings
3. Connect the switch to a power source or an
ohmmeter, and apply power to the actuator.
Observe the switch trip point.
4. Turn the adjuster again to reset the trip point, if
required.
Repairs and Replacement
Do not make field repairs. For a replacement or an
accessory, refer to the M9206-Bxx-1S Series On/Off
Electric Spring Return Actuators Product Bulletin
(LIT-1201398).
60
70
80
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