8
M9216 Series Electric Spring Return Actuators Installation Instructions
BGx Models
RA is selected by changing the actuator sleeve from
the front to the back of the actuator. (See the
Installation, Spring Return Direction
section.)
GGx Models
GGx models are factory set with Mode Switch 2 in the
DA mode. Move Mode Switch 2 to the RA mode.
(See Figure 12.)
HGx and JGx Models
HGx and JGx models are factory set with Jumper W1
in the DA position. Move Jumper W1 to the
RA position. (See Figure 13.) Apply power and a
control signal to the actuator to verify proper operation.
(See Table 2.)
Note:
HGx models may require potentiometer
settings. Proceed to the
Potentiometers (HGx Models)
section.
Fixed or Auto Mode (GGx Models)
The GGx models are factory set with Mode Switch 1 in
the fixed position shown in Figure 12, where a
0 to 10 VDC input signal (selected with Mode
Switches 3 and 4) corresponds with a 0 to 93° rotation.
If the rotation range is reduced, the end-stop is
reached with a reduced input signal. For example, if a
0 to 10 VDC input signal is selected and the rotation
range is limited to 75°, the end-stop is reached at 8 VDC.
The AUTO calibration or auto mode enables the
actuator to redefine the selected input signal and
feedback proportionally across a reduced rotation
range. The actuator stores the reduced range in
nonvolatile memory (retains data when power is lost or
removed).
To activate the auto mode, move Mode Switch 1 to the
auto position, and leave it in this position. The actuator
spring returns to the normal position, drives to the full
stroke position, and stores these positions in
nonvolatile memory. The actuator drives to the setpoint
determined by the control signal applied after going
through the auto mode. During normal operation, if the
actuator stroke increases in the auto mode due to seal
or seat wear, the input is redefined to the increased
rotation range in approximately 2° increments.
Note:
If the actuator’s direction of spring return,
rotation range, or the linkage is changed, respan by
moving Mode Switch 1 to the fixed position for
5 seconds and then back to “auto”. This reinitiates the
auto mode. (The feedback output remains 0 to 10 VDC,
unless Mode Switch 3 is positioned for 2 to 10 VDC.)
LED (GGx Models)
The GGx models have a Light Emitting Diode (LED)
indicator shown in Figure 13. When the actuator is
driving to position, the LED flashes five times every
second. When the unit is AUTO calibrating, the LED
flashes ten times every second. When the unit is idle,
the LED flashes once every 2-1/2 seconds.
Mode Switches (GGx Models)
GGx models are factory set with Mode Switch 1 in the
fixed position, Mode Switch 2 in the DA position,
Mode Switch 3 in the 0 to 10 position, Mode Switch 4
in the VDC position, and Mode Switch 5 in the
master position. (See Figure 12.)
Jumpers (HGx and JGx Models)
HGx models are factory set with Jumper W1 in the
DA position, Jumper W2 in the 0 to 10 VDC or
0 to 20 mA position, Jumper W3 in the fixed position,
and Jumper W4 in the master position. (See
Figure 13.)
Note:
JGx models are supplied with only one jumper,
Jumper W1, to select the direction of action.
Potentiometers (HGx Models)
IMPORTANT:
Both zero and span potentiometers
must be adjusted for full actuator travel and
complete calibration.
HGx models have two potentiometers, zero and span.
These potentiometers do not require adjustment when
Jumper W3 is in the fixed position (factory set). When
Jumper W3 is in the adjustable (ADJ) position,
proceed as follows:
Use either Terminals 3 and 5 or Terminals 3 and 4, a
control signal, and a voltmeter. The zero and span
potentiometers may be adjusted as follows without
waiting for the actuator to drive to the final position.
Adjusting the Zero and Span
1. Verify that Jumper W2 is in the 0 to 10 VDC
position, and Jumper W3 is in the ADJ position.
(See Figure 13.)
2. Provide 24 VAC or 24 VDC power to Terminal 1
(Common) and Terminal 2.
3. Connect the Common from the controller to
Terminal 1, and either a voltage signal to Terminal
5 or a current signal to Terminal 4.
4. Connect Terminals 1 and 3 to a voltmeter to
monitor the calibration output.
