User Manual M3000® Automation System / MSC II (Moog Servo ...

10 MSC II (Moog Servo Controller) Digital Sensor Interfaces
10.13.2 Wire Fault Monitoring
The inputs A, B, and Z of the digital sensor interfaces of the MSC II are monitored
for wire faults, regardless of which type of sensor is attached.
The signals supplied by the wire fault monitoring function are available in the
application program. The user is responsible for evaluating these signals and
defining the appropriate reaction to the appearance of a wire fault.
The status of wire fault monitoring is displayed by 12 front panel error LEDs
of the MSC II. Each of the 12 TIA/EIA 422/485 inputs is assigned to one LED.
�-"10.13.2.1-Wire Fault Display LEDs" on page 102
10.13.2.1 Wire Fault Display LEDs
The 12-front panel error LEDs «A1», «B1», «Z1», «A2», «B2», «Z2», «A3»,
«B3», «Z3», «A4», «B4» and «Z4» of the MSC II will illuminate if:
• No sensor is attached to the corresponding sensor interface input
• There is a wire break
10.13.3 Connecting SSI Sensors
An SSI sensor supplies an absolute position signal or angle signal that can
be read through the MSC II's sensor interface. The current value is available
in the application program continuously.
If an SSI sensor is attached to the sensor interface of the MSC II, the MSC II
can be used as a master or a slave. The sensor interface must then be inserted
and configured as a master or slave, respectively, in the PLC configuration
of the MACS development environment.
If the MSC II is used as a master, the terminal assignment of the SSI interface
will be different than if it is used as a slave!
MSC II connection diagram (master mode): � figure-61 on page 103
MSC II connection diagram (slave mode): � figure-62 on page 104
If the MSC II interface is used as a SSI master, the «Bx» and «Zx» wire
fault LEDs of the relevant interface will illuminate even if the sensor is
connected and no wire fault is existent.
If the MSC II interface is used as a SSI slave, the «Zx» wire fault LEDs
of the relevant interface will illuminate even if the sensor is connected
and no wire fault is existent.
Wire Fault Monitoring
of MSC II's Digital
Sensor Interfaces
Wire Fault Display LEDs
of MSC II's Digital
Sensor interfaces
Connecting SSI Sensors
to the MSC II
© Moog GmbH User Manual M3000 ® and MSC II (CA65865-001; Version 1.1, 08/08) 102