Operation - Honeywell ML7999C Notice Technique

LOW
VOLTAGE
WIRING
Fig. 5. Opening ML7999C low-voltage wiring
compartment.
L2
R7999
L1
1 2
G
TERMINATE WIRE SHIELD AT THE CONTROLLER (R7999).
1
2 SEE FIGURE 5 FOR ACTUATOR WIRING.
3
RUN LOW/LINE VOLTAGE IN SEPARATE CONDUIT.
Fig. 6. Typical ML7999C wiring.
.
LED Online
Fast Blink No Yes
Slow Blink Yes Yes
Steady On No No
LINE VOLTAGE
WIRING
M16470
ML7999
3
DR1
DR2
CW
S
CCW
1/2 IN. MAXIMUM
M16469A
Table 1. On-Board LED Indications
Configured Meaning
Awaiting ID signal.
ID signal recognized.
Actuator has failed.
ML7999C UNIVERSAL PARALLEL-POSITIONING ACTUATOR

OPERATION

ML7999C Universal Parallel-Positioning Actuator is
designed to operate combustion air dampers, butterfly gas
valves, oil modulation valves, and flue gas recirculation
systems requiring up to 100 lb-in. torque. An R7999C
controller operates the ML7999C.
The actuator has a position indicator that shows shaft
position. As the indicator moves with the shaft, it provides
an angular representation of the shaft position.
IMPORTANT
When the cover is removed and replaced, the
position indicator will not operate until manually
rotated clockwise to engage it. An audible click
indicates the position indicator is engaged.
NOTE: While installing the actuator, the hub can be
manually driven using the push buttons located
under the cover. The buttons are labeled CW and
CCW. To use them, the only required wiring
connections are L1, L2, and GND. However, after
the device is installed and wired to the R7999, do
not use these buttons for anything but
troubleshooting.
Password Protection (ID Signal)
Before using the actuator, the ID signal must be set. See
the software interface instructions for details. After this
signal is set, the R7999C sends the signal to operate the
actuator. Until the appropriate ID signal is sent, the
actuator is offline and responds only to its own ID signal.
(See Table 1.)
Responds only to ID signal.
Monitors signals for operation or offline
commands.
Return actuator to factory.
5
Notes
32-00079EF—01