Johnson Controls M9220-GGX-3 - Manual (Page 10)

M9220-GGx-3 Proportional Electric Spring Return Actuators Installation Instructions 10
• The other GGx actuator(s) must be configured as
slave(s), by setting the tandem selector switch to
the slave position. • The master can accept DC 0-10 V or DC 2-10 V, or
4-20 mA command signals based on the master’s
switch settings and/or external resistor.
• The master and slave(s) must have matching
RA/DA settings.
• The master and slave(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 slave(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 slave actuator must have its tandem selector
switch (Figure 15) set on the slave 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 slave 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
Technical Specifications 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.
Figure 16: Tandem Connection with Three Actuators
F
IG
:t
an
d
2
Y
DC 0(2)...10 V
+
Master
(M9220GGx actuator)
U
+
1 2 3 4
BLK RED GRY ORN
DC 0(2)...10V Control with Multiple Slaves
Slave
( only) M9220GGx actuator
AC/DC
24 V
~(+)
DC 0(2)...10 V
COM
+
1 2 3 4
BLK RED GRY ORN
Slave
( only) M9220GGx actuator
+
1 2 3 4
BLK RED GRY ORN
!
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.