Johnson Controls VA-9070 Series Technical Bulletin page 16

Table 4: Red LED warning and information flash codes
Code
11
12
13
14
15
16
17
16 VA-9070 Series Electric Rotary Actuators for Two-Position and Modulating Service Technical Bulletin
Description
Feedback Potentiometer Failure If the feedback potentiometer
Open and Close Limit Switch
Failure
Open Torque Limit Reached
Close Torque Limit Reached
Feedback Potentiometer Wired
in Reverse
General Servo Failure
Calibration Error
Meaning
cannot be detected, or if in
the fully closed or fully open
position and the feedback
potentiometer is at the end of
its travel, an error is detected.
When both the open and
close limit switches are open-
circuited at the same time, an
error is detected.
The open torque limit switch
has been tripped or the open
torque limit switch is incorrectly
connected to the servo.
The close torque limit switch
has been tripped or the close
torque limit switch is incorrectly
connected to the servo.
This check is made only during
the servo autocalibration. The
feedback potentiometer is
wired in reverse when, at the
completion of the calibration,
the feedback potentiometer
value at the fully open position
is less than the value at the
fully closed position. To clear
the error, turn off the power to
the servo, correct the feedback
potentiometer wiring, turn on
the power to the servo, and
complete the autocalibration.
If after cycling the power to
the servo, this error persists,
contact your local Johnson
Controls representative for
assistance.
This flash code is displayed
after a failed calibration for 3
seconds. See Code 2 and Code
3 in Servo Troubleshooting
more information.
for