Lenze EVS93xx FlyingSaw - Manual (Page 86)

FlyingSaw
State machine of the Prepared Solution
 Prepared Solution Servo PLC / ECSxA 1.1 EN page 7-2
7.1.1 Concise description of the states
"Initialisation" state (g_wState = 100: initialisation)
During the initialisation phase, the normalisation factor necessary for the flying saw is calculated
online. The calculation is only allowed in this state and in some circumstances requires a few
minutes until the factor (rational fraction) is determined. The application then changes
automatically to the Standby state.
On completion of initialisation, the Program initialisation complete bit is set in the application
status word (default bit 00)
"Standby" state (g_wState = 10: standby)
The servo controller can be changed to all other states from the "Standby" state. The axis itself
does not move when the "Standby" state is active.
A change is always made to the initialisation state if a new normalisation factor needs to be
calculated. Re-calculation is triggered by changing the following codes:
C1202 gearbox factor numerator
C1203 gearbox factor denominator
C1204 feed constant
C3003 gearbox factor numerator of measuring wheel
C3004 gearbox factor denominator of measuring wheel
C3005 circumference of measuring wheel
C3006 encoder pulses of measuring wheel
The STATUS Standby bit is set in the application status word (default bit 04).
"Manual operation" state (g_wState = 20: manual mode)
The "Manual operation" state is a transient state and is only adopted in the Prepared Solution
for one cycle. As a rule after this state the state changes to the "Positive inching" or "Negative
inching" state. The axis does not move when this state is active, but checks for various
requirements for manual operation (e.g., whether a home position is known and whether
software limit switches are to be used).
"Positive inching" state (g_wState = 21: manual jog positive)
The drive moves in the positive direction at the velocity set in the parameters in C3100/000 and
the acceleration and deceleration set in the parameters in C3101/000 and C3102/000
respectively. During this process the positive software end position (C3223/000) is taken into
account if the home position is known. The state is left on the clearing of the selection of
"Positive inching", in case of controller inhibit, in case of quick stop or in case of an error in the
drive system.
The STATUS Inching in negative direction bit is set in the application status word (default bit
06).
"Negative inching" state (g_wState = 22: manual jog negative)
The drive moves in the negative direction at the velocity set in the parameters in C3100/000 and
the acceleration and deceleration set in the parameters in C3101/000 and C3102/000
respectively. During this process the negative software end position (C3224/000) is taken into
account if the home position is known. The state is left on the clearing of the selection of
"Negative inching", in case of controller inhibit, in case of quick stop or in case of an error in the
drive system.
The STATUS Inching in positive direction bit is set in the application status word (default bit 07).