MANUALE ISTRUZIONI / INSTRUCTIONS MANUAL
MTR605/025/DASM - R605/027/DASM - R605/170/DASM
Modello/Model R605DASM
I/ 1
sistema_
elettronico
_60
5.fm
I - E
LECTRONIC
SYSTEM
, D
ESCRIPTION
:
Electronic Board CAN-DC-STEP (MP11719) controls a single stepping-motor through
CAN Bus interface. Shutter movements of collimator R605DASM are controlled by
three motors; this means that the collimator includes three boards MP11719.
Motor positioning is controlled via an open loop; i.e. impulse count sent to the motor, a
direct function of the motor shaft movement.
Stepping-motor operation provides a quasi-trapezoidal speed/time profile, character-
ized by a starting speed ( Vmin), acceleration time (TR), running speed (Vmax) and by
deceleration time (Tr).
In the case of Dist travel lasting less than twice the ramp time Tr, running speed Vmax
would not be attained. In this case instant speed would reach its maximum value at
mid-run and then reduce again to Vmin speed at which point travel will stop.
Maximum current is set both by a trimmer situated on board and by CAN BUS setting
over four levels between 50% and 100% of the value provided by the trimmer. Voltage
in motor windings is controlled also in its damping stage and is adjustable over four
levels.
co
llimatori\60
5\
grafico_C
AN.g
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