Description of NEPO_DIA and TEPO

Introduction

When the DFB detects a fault, the latter is indicated via the words STATUS0 and STATUS1 (several faults can be indicated at the same time).

Whether faults are latched or not depends on the selection mask values of the DFB operation when the fault happens: RST_ORD and RST_FB :

a fault selected in RST_FB will be recorded in STATUS0 until it disappears and is acknowledged by INIT (the DFB changes to shift mode),
a fault selected in RST_ORD will be recorded in STATUS0 until it disappears and is acknowledged by INIT (the DFB remains in monitor/command mode),
all other (non-selected) faults will stop being indicated when the cause of the fault disappears.

A fault selected in SET_ERR sets the ERROR bit to 1.

Status words 0

The following table describes the meaning of status word 0 bits for the NEPO_DIA and TEPO_DIA DFBs.

Bit	Error	Description
bit 0 =1	Error on command or abnormal sensor information	The DFB has detected an aberrant command or incoherent information about positions. Aberrant commands: "input" and "output" requests present at the same time, using the "input" command for a monostable actuator with a single request, expected "input" ( RESEQ_1 ) and "output" RESEQ_0 states present at the same time. Incoherent position information : non-merged position sensors for a rotating movement, unchecked position with active position sensor, a position being checked by several sensors, and SENSOR_I/O and NOSENS_I/O variables active at the same time.
bit 1 =1, bit 2=1	Unexpected "input" sensor Unexpected "output" sensor	When in position, at least one opposing position sensor is active during time beyond the authorized timing, configured in APP_TIME. After having reset, the sensor for the position just left reappears during a time period outside the authorized time, which is defined in APP_TIME. During recalibration, at least one sensor is present at each position.
bit 3 =1, bit 4 =1	Mistimed "input" sensor Mistimed "output" sensor	At least one go to position sensor is present before the minimum movement time, defined in RMIN_I or RMIN_O .
bit 5 =1, bit 6 =1	Late "input" sensor Late "output" sensor	At least one go to position sensor is not yet in place beyond the maximum time given to a movement, and defined in RMAX_I or RMAX_O.
bit 7 =1, bit 8 =1	"Input" sensor disappearance "Output" sensor disappearance	While in position, at least one sensor has disappeared during a period outside the tolerated time, configured in DIS_TIME . While recalibrating, no position is found.
bit 9 =1,	Condition of continuous disappearance	Continuous conditions have disappeared during a movement.
bit 10 =1, bit 11=1	Disappearance of the safety condition for the "input" movement Disappearance of the safety condition for the "output" movement	The safety condition has disappeared during a movement.
bit 12 =1, bit 13=1	"Input" request refused "Output" request refused	A request cannot be accepted by the DFB (safety conditions and/or continuously absent conditions etc..)
bit 12 =1, bit 13=1	"Input" sensor that has not reset "Output" sensor that has not reset	At least one sensor for the position just left has not reset after the minimum movement time, defined in RMIN_I or RMIN_O .

Status words 1

Status word 1 detects configuration faults. During a DFB initialization (i.e. application transfer, cartridge changing etc), the DFB is in "outside operation mode", and is awaiting the reference point At this point it can detect configuration errors which impede its operation, and they are indicated by the STATUS1 output parameter.

The following table describes the meaning of status word 1 bits for the NEPO_DIA and TEPO_DIA DFBs.

Bit	Description
bit 0 =1	Invalid actuator type (faulty CONFIG value).
bit 1 =1	"input" position and "output" position selected are not monitored.
bit 2 =1	Rotating movement and one of the selected positions not monitored.
bit 3 =1	Rotating movement, monostable and in one direction only.
bit 4 =1	Maximum duration of a movement below or equal to the minimum duration.
bit 5 =1	Modeling and training modes of movement periods.
bit 6 =1	Translation and single directional movement only.
bit 7 =1	Training mode for movement periods and non-monitored positions.
bit 8 =1	Rotating movement and positions monitored differently.
bit 9 =1	Incompatible selected CONFIG and ET RST_ORD selection mask.
bit 10 =1	The CONFIG selected and ET unmonitored position are incompatible (actuator types 2, 7 or 11 and NBSENS_I or NBSENS_O = 0).
bit 11 =1	Selection masks RST_ORD and RST_FB are incompatible. (the errors selected in RST_FB must also be selected in RST_ORD ).
bit 12 =1	Selection masks RST_ORD, RST_FB and SET_ERR are incompatible. (the errors selected in RST_FB and RST_ORD must also be selected in SET_ERR).
bit 13 =1	Rotating movement and selection mask RST_FB are incompatible. ( ROTATION =1 and the error sensor(s) not reset and not selected in RST_FB ).