MANUALE ISTRUZIONI / INSTRUCTIONS MANUAL
MTR605/025/DASM - R605/027/DASM - R605/170/DASM
Modello/Model R605DASM
I/ 8
sistema_
elettronico
_60
5_CAN.fm
Example
: if set at 0fh, all the ensuing fields are considered valid; if set at 02h the
torque-related value only will be extracted from the string.
2°Byte (Step fraction)
The scope of this byte is to set the fraction required which may be chosen from:
00 =used only to cut-off supply to the motor. It makes sense only in the case of an
complete step otherwise, actual position within the fraction itself would be lost.
The reason is that a motor stopped over a step fraction must be energised.
01 =invalid NEVER USE
02 =invalid NEVER USE
03 =entire step
04 =half step at low torque
05 =half step at high torque
06 =quarter of a step
07 =eighth of a step
08 =sixteenth of a step
3°Byte (Torque)
The scope of this byte is to set the maximum torque fraction required:
00 = 50% of the maximum value (160mA - 225mA)
01 = 70% of the maximum value (225mA - 315mA)
02 = 85% of the maximum value (270mA - 380mA)
03 = 100% of the maximum value (320mA - 450mA)
These values ca be set by string sent to board even when it is working.
00 = 07x4 5 02 670067 67
01 = 07x4 5 02 670167 67
02 = 07x4 5 02 670267 67
03 = 07x4 5 02 670367 67
4°Byte (voltage decay)
The scope of this byte is to set phase voltage decay required:
00 = 12.5% low decay coefficient
01 = 37.5% medium decay coefficient
02 = 75% high decay coefficient
03 = 100% rapid decay coefficient
N
OTE
:
T
HE
EXESSIVE
MOTOR
AND
BOARD
HEATING
CAN
CAUSE
THE
COLLIMATOR
SHUTTERS
TO
BLOCK
. T
HE
OVERHEATING
IS
CAUSED
BY
A
CONTINOUS
100%
SUPPLY
OF
HIGH
VOLTAGE
. I
T
IS
ADVISED
,
WHEN
THE
MOTOR
IS
STOPPED
,
TO
LOWER
THE
HIGH
VOLTAGE
RISE
AS
SHOWN
BELOW
.
