9
Series 70
Servo NXT - EtherNet/IP
Installation, Operation and Maintenance Manual
4.4.2 EtherNet Speed
This green LED indicates the communication
speed of the Servo NXT EIP. If it is on, the unit
is configured to communicate at 100Mb/s. If it
is off, it is configured to communicate at 10Mb/s.
4.4.3 Module Status
This bi–color (green, red) LED provides device
status. It indicates whether the device has power
and is operating properly.
4.4.4 Network Status
This bi–color (green, red) LED displays EtherNet/IP
configuration information for the Servo NXT EIP.
4.4.5 Position
This bi–color (green, red) LED displays the
position of the valve. If the valve is fully open and
the open limit switch is engaged, the green LED
is on and solid. If the actuator is operating in the
open direction, the green LED will be flashing. If
the valve is fully closed and the close limit switch
is engaged, the red LED is on and solid. If the
actuator is operating towards the close position,
the red LED will be flashing. The LED will be
dark if the unit is not operating and it is not
positioned at the travel limits.
4.4.6 Product Status
These 2 red LEDs, illuminating the Bray logo,
flash periodically to indicate the unit is powered
and operational. If these LEDs are not on, then
the unit likely does not have power applied. If
these LEDs are solid, then the unit should be
power cycled to clear any potential internal
faults.
4.4.7 Fault Indicators
4.4.7.1 Limit Switch Fault
This red LED is on if a limit switch fault is active.
This occurs if the Servo NXT EIP detects that both
limit switches are engaged. Since these switches
are normally closed and electrically open when
engaged, this can occur if the switches become
disconnected from the terminals. Additionally,
if one switch is engaged and the other switch
has a wire disconnected, then this fault will also
occur.
4.4.7.2 Handwheel Fault
This red LED is on if a handwheel fault is active.
This occurs if the handwheel is detected to be in
use by an operator. If the handwheel is engaged
or pulled out, a switch connected to the Servo
NXT EIP is engaged and signals that motor
operation needs to be cease. The Servo NXT
EIP will remain inactive while the handwheel is
engaged.
4.4.7.3 Torque Fault
This red LED is on if a torque switch fault is
active. This occurs if one or both torque limit
switches are engaged. While these switches are
engaged, the unit will not operate until the high
torque event has been cleared.
4.4.7.4 Feedback Fault
This red LED is on if a feedback fault is active.
This occurs if the feedback potentiometer is
operated outside of its region of safe operation.
Since the potentiometer is not a 360° model,
it has internal mechanical limits that cannot be
exceeded without damaging the unit. This fault
state prevents the potentiometer from being
operated beyond its physical limitations.
4.4.8 Autocalibration
This white LED is on when Autocalibration Mode
is active.
This mode of operation prevents remote
operation of the Servo NXT EIP. Once exiting
Autocalibration Mode, the unit will return to
Remote Mode.
4.4.9 Manual Mode
This white LED is on when the unit is operating
in Manual Mode.
This mode of operation prevents remote
operation of the Servo NXT EIP. Once exiting
Manual Mode, the unit will return to Remote
Mode.
4.5 User Switches
4.5.1 Autocalibration Switch
Switch that engages and disengages the
Autocalibration sequence for the Servo NXT EIP.
To enter autocalibration, the switch should
be pressed and held for > 1 second. Once the
switch is released, the autocalibration LED will
turn on, indicating that the autocalibration state
is active.
Pressing and holding the switch while
autocalibration is active will cause the
autocalibration state to be immediately exited
