M9203-AGx-2(Z) Series On/Off and Floating Point Electric Spring Return Actuators Installation Guide
8
Control Response
The installation side of the actuator and the position of
the mode selection switch combine to determine
control response from the actuator. See Figure 13.
Auxiliary Switch (M9203-xxB-2(Z) Models)
The M9203-xxB-2(Z) models include one integral
auxiliary switch with a switch adjuster accessible on
either face of the actuator (see Figure 2 and Figure 3).
The factory setting for the Auxiliary Switch is
11° closing (relative to the 0 to 90° rotation range as
printed on the product label). See the
table for the auxiliary switch ratings.
The switch point is continuously adjustable throughout
the actuator’s rotation range. For the most accurate
switch positioning, see Figure 14 and use the method
in the following example.
To change the switch point, proceed as follows:
1. Position the actuator in the full spring return
position.
Note:
The switch is factory set to trip when the
actuator reaches the 11° position.
2. Rotate the switch adjuster until it points to the
desired switch point.
3. Connect the Auxiliary Switch to a power source or
an ohmmeter and apply power to the actuator. The
actuator moves to the fully open position and holds
while power is applied.
4. Observe the switch point. If required, repeat Step 1
through Step 3.
Repair Information
A number of replacement parts are available; see
Table 1 for more details. If an M9203-AGx-2(Z) Series
On/Off and Floating Point Control Electric Spring
Return Actuator fails to operate within its specifications,
replace the unit. For a replacement electric actuator,
contact the nearest Johnson Controls representative.
!
WARNING: Risk of Electric Shock and
Property Damage.
Insulate and secure each unused wire
lead before applying power to the
actuator. Failure to insulate and secure
each unused wire lead may result in
property damage, electric shock, and
severe personal injury or death.
AVERTISSEMENT : Risque de
décharge électrique et dégâts
matériels.
Isoler et protéger chaque fil non utilisé
avant de mettre l'actuator sous tension.
Le non-respect de cette obligation
d'isolation et de protection de chaque fil
non utilisé risque d'entraîner des dégâts
matériels, des décharges électriques et
des blessures graves, voire mortelles.
Figure 13: Control Response
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Control Inputs
GRY
ORN
Mode Selection Switch
3
4
Installation Side
90
70
10
50 30
30
90
50
70
30
90
50
70
10
Figure 14: Switch Trip Point Settings
30
90
50
70
30
90
50
70
10
Switch Adjuster
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tn
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