Installation manual

54
4 FAULTS AND ERRORS
The S200 Position Node product has internal fault and error monitoring
systems. Constructed of a base-unit drive and a position controller board the
product actually has two monitoring systems and three annunciation systems.
The Base Unit is the drive-portion of the product and is an S200 Series AC
Motor Drive with a single green status LED that signals status of the base unit.
The position controller card has a seven segment status display used to
indicate faults. Finally, the CAN bus firmware has access to a separate MNS
bi-color LED to signal bus status. This section provides information about these
3 status indicators, the faults they represent, the conditions that can cause the
faults, and how to recover from the faults.
Faults can occur with primary detection by the drive base-unit. These faults are
called ‘b-faults’. (‘b’ Is for Base Unit’). Faults that are primarily detected by the
position controller card are called ‘F-faults’ (‘F’ for fault’) or ‘o-faults’ (letter O).
Base unit errors are detected by the position controller card and become F20
faults be definition. The position controller card annunciates these with an ‘F20’
in the seven segment display followed by the ‘b-code’ (base unit) fault.
The user interface software, S200 OC Tools, displays drive status information
on the Status Menu real-time. The status block will indicate both a Position
Card Fault and the Base-unit fault, if applicable.
4.1 CAN BUS STATUS INDICATOR
The CAN bus status indicator’s function is largely guided by the rules and
definitions of the CAN bus interface standards. Different software can provide
different functions. Details about this status indicator are located in the
appropriate reference manuals for the can bus interface. If the CAN bus portion
of this product is not used (not connected) then a word about this LED is
justified here. S200 Position Node products with the –CNS suffix will normally
have this indicator a solid green with no CAN Bus connected and the drive
enabled but will flash green at approximately once per second if the drive is
disabled. S200 products with the –DNS suffix will normally have this LED a
solid red with no CAN Bus connected.
4.2 NORMAL INDICATOR OPERATION
The remaining two indicators are easy to understand in normal operation.
The green status LED on the Base Unit will flash at a constant (2 times per
second) rate if the drive is disabled and there is no base-unit fault condition.
The green status LED will remain illuminated if the drive is enabled and there is
no base-unit fault condition. At anytime a base-unit fault condition exists this
LED will flash a code. The code is signaled by a 2 second LED off-time
followed by a series of flashes. Counting the number of flashes indicates the
numerical fault code.
The 7-segment display is under control of the position loop controller. The
decimal point is always on and has no meaning. The display will flash a series
of numbers on power-up indicating the drive model number. The display then
goes into normal operation. Power-up indicator may flash b-s-2-0-3-6 indicating
that the base unit drive model is ‘S2036(0 implied)’ model. Under normal
operation the 7-segment display simply displays a ‘d’ for disabled without faults
or an ‘E’ for enabled without faults. Anytime that a fault condition is detected by
the position controller card the display is likely to flash a code sequence.