JVL MIS17 Series User Manual page 15

2.1
2.1.5 Control Voltage (CVI terminal)
The control voltage should be in the range 7-28VDC and is used to supply the micropro-
cessor circuit, internal functions in general and the user output driver (O1-8).
To ensure that position and parameters are maintained after an emergency stop, the
control voltage should be maintained under a stop situation where the P+ (main power)
is disconnected.
Warning: a voltage at the CVI terminal higher than 30VDC can damage the controller
or cause malfunction. A protection circuit will protect from damages. If this protection
circuit get triggered the CVI power need to by cycled in order to reset the protection.
A CVI voltage down to 7 VDC is also possible but a software setup is needed to allow
this. See also
The figure below shows the typical relation between supply current and supply voltage
at the CVI input. As shown the current is very dependant at which options is installed in
the motor. Worst case is if the motor is equipped with Ethernet and H4 encoder and best
case is the basic motor such without Ethernet and encoder.
!
JVL Industri Elektronik A/S - User Manual - Integrated Stepper Motors MIS17x, 23x, 34x, 43x
Power Supply
Setup position backup using
Please notice that the user I/O's are supplied from the CVI termi-
nal. The curves shown above do NOT include any load current at
the user outputs. Add the load current(s) to the current shown
above. If the motor is equipped with an internal electromechani-
cal brake this must also be added to the current consumption.
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