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MOONS’
MSSTAC6 Step Motor Drive User Manual
MOONS’
www.moons.com.cn
Refer to the Host Command Reference Manual for more information on how to send commands to drives
on a multi-axis serial link.
Transmit Delay
When a two wire RS-485 system is used, the drive(s) and the host use the same pair of wires to transmit
data. The transmit delay may need to be adjusted in order for the drive to give the host time to disable its
RS-485 driver before responding to a command. If the delay is not adjusted data from the drive might not
be received. Applications using RS-232 or four wire RS-485 are not affected as they use separate wires for
transmitting data in each direction.
Communication Protocol
Several communication options are available in Q mode. Please refer to the Host Command Reference
manual for more information.
Mis Programmer
To create a Mis program for a MSSTAC6, use the MisProgrammer Software to configure the drive, and
create and test your Mis program.
I/O
The MSSTAC6 includes several inputs and outputs that can be assigned for special purposes, such as end
of travel limits or signaling a drive fault. The I/O Dialog allows you to choose all the options.
Inputs and Outputs
Fault Output
The drive features a Fault Output that will be triggered if there is a fault condition. This may be a fault
within the drive or it may indicate a system fault. Not all faults will cause the drive to be disabled. If the
MSSTAC6 Configurator is running when an alarm condition develops, a dialog box will open listing the details
of the fault. Alarms and faults are also indicated through a pattern of red and green flashes by the drive’s
front panel LED.
