JVL Industri Elektronik A/S - User Manual - Integrated Stepper Motors MIS23x, 34x, 43x 179
8.3 MIS34x & MIS43x Registers
8.3.77 Save threshold voltage
Description: When voltage drops below the selected value the absolute position information (and oth-
er information) is instantly saved to flash memory.
Save Threshold Voltage, selects the voltage threshold, that will trigger the flash save op-
eration (and stop all other motor operation).
When register 142 has the value 12, the scaling/unit of register 141 is the same as register
97, Bus Voltage (1023 = 111.4V).
The register 142 has the values of 1-8 or 81-88, the scaling/unit of register 141 is the
same as registers 81-96 (1023 = 5.0V)
The scaling of this value follows the one of the Acceptance Voltage, register 139.
8.3.78 Analogue input selection
Description: Analogue input selection, selects which analogue input to use for measuring the power
supply. It can be:
1 to 8 for analogue inputs IO1 to IO8, using the unfiltered values for fast response.
81 to 88 for analogue inputs IO1 to IO8, using the filtered values for noise immunity.
12 for the bus voltage used for motor supply
and finally 13 for CVI measurement (from HW rev. 1.7 and up).
Any other value will disable the flash backup system.
When running the motor from 30 Volts or less, it can be convenient to connect the bus
voltage with the control voltage (CV) supply, and use the value 12 in register 142 to mon
-
itor the control voltage.
When running the motor from 48 Volts, this is not allowed and can damage the controller
board if voltage exceeds 30V
8.3.79 P_New
Description: This register can be used to change both of the registers P_SOLL and P_IST in one op-
eration. This can be used to correct or offset the current position without performing a
movement. The register value can be copied to P_IST and P_SOLL using FastMac com-
mand 23, or it can be added with sign to both of these registers using FastMac command
24.
Reg Name Size Access Range Default Unit MacTalk name
141
Save Threshold
Voltage
32bit R/W 32bit - -
Save Threshold
Voltage
Reg Name Size Access Range Default Unit MacTalk name
142
Analog Input
Selection
32bit R/W 32bit 0 -
Analog Input
Selection
Reg Name Size Access Range Default Unit MacTalk name
144 P_NEW 32bit R/W
(-2
31
)-(2
31
-1)
0 Counts N/A
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