Functional Software description
20 DCS 500 Software Description
- Stop because of problems with the panel link (communication
between drive and control panel CDP 312)
if the serial link between the drive and the control panel is inter-
rupted by any reason (panel removed from the drive, cable
broken, etc) the reaction of the drive can be specified by
paramter PANEL_DISC_MODE (918):
0 = stop by ramp (DECEL1 (1709) or DECEL2 (1712) )
at RAMP GENERATOR function block
1 = stop by torque limit (TORQ_MAX / TORQ_MIN)
2 = stop by coasting (torque is zero)
3 = stop by dynamic brake
4 = continue remote
The drive will come up with a FAULT, which must be reset and
which will open all contactors at zero speed (with coasting im-
mediatelly).
- Stop because of problems with the field bus serial link
(communication between drive and progr. logic controller)
if something is wrong with the field bus serial link (between
PLC and serial link adapter module or between adapter module
and drive) the reaction of the drive can be specified by pa-
rameter COMFAULT_MODE (920):
0 = stop by ramp (DECEL1 (1709) or DECEL2 (1712) )
at RAMP GENERATOR function block
1 = stop by torque limit (TORQ_MAX / TORQ_MIN)
2 = stop by coasting (torque is zero)
3 = no action
The drive will FAULT and must be reset and will open all con-
tactors at zero speed (with coasting immediatelly).
Reset the drive
fault
The drive can be reset using the input [RESET] (907) or in local
control mode by means of the control panel CDP312 by pressing
the RESET-button. The drive recognises the rising edge of the sig-
nal. To be able to restart the drive after trip, there has to be a rising
edge in signal ON/OFF-input . The technique prevents the RESET-
input signal from self-commanding the contactors "ON".
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