M9220-GGx-3 Proportional Electric Spring Return Actuators Installation Guide
12
•
The master and subordinate(s) must spring return
in the same direction.
•
Once tandem-operating actuators are mounted to
a damper shaft, manual override is no longer an
available function.
The feedback wire of the master (orange) is connected
to the command wire(s) of the subordinate(s)(gray). As
the master moves response to position commands, the
master sets its feedback wire to 0 volts if moving
counterclockwise, 5 volts if holding, or 10 volts if
moving clockwise.
Each subordinate actuator must have its tandem
selector switch (Figure 15) set on the subordinate
setting. Its gray command wire must be connected the
master’s orange feedback wire.
Position information, 0-10 (or 2-10) volts, is available
on the subordinate actuator’s feedback wire (orange).
Note:
Electrical override still functions after the
actuators configured for tandem operation are mounted
to a damper shaft. The actuator has a 150-second
drive time when operating in this mode.
Auxiliary Switches (GGC Model Only)
The GGC models include two integral auxiliary
switches with a switch adjuster accessible on either
face of the actuator (as illustrated in Figure 2 and
Figure 3). The nominal factory setting for Auxiliary
Switch No. 1 is 11° closing, and the nominal factory
setting for Auxiliary Switch No. 2 is 81° opening
(relative to a 0 to 90° rotation range). See the
table for the auxiliary switch
ratings.
The switch point of Auxiliary Switch No. 1 is fixed. The
switch point of Auxiliary Switch No. 2 is independently
and continuously adjustable from 25 to 95°. See
Figure 17 and use the method in the following example
for the most accurate positioning of Auxiliary Switch
No. 2.
To change the switch point of Auxiliary Switch No. 2,
proceed as follows:
1. Position the actuator in the full spring return
position.
Note:
Auxiliary Switch No. 2 is factory set to trip
when the actuator reaches the 81° position.
!
WARNING: Risk of Electric Shock.
Disconnect or isolate all power supplies
before making electrical connections. More
than one disconnect or isolation may be
required to completely de-energize
equipment. Contact with components
carrying hazardous voltage can cause
electric shock and may result in severe
personal injury or death.
AVERTISSEMENT : Risque de décharge
électrique.
Débrancher ou isoler toute alimentation
avant de réaliser un branchement
électrique. Plusieurs isolations et
débranchements sont peut-être nécessaires
pour -couper entièrement l'alimentation de
l'équipement. Tout contact avec des
composants conducteurs de tensions
dangereuses risque d'entraîner une
décharge électrique et de provoquer des
blessures graves, voire mortelles.