MC³ 24.96.EX O&M Manual Page 34 08/14/01 4:34 PM/LDD
Analog Output Setup Screen
Mode
SCR OUTPUT Control signal for the belt motor drive, controlling the belt speed. This is the
output from the PID controller. Scaling is 0..100%.
Feedrate Follows the actual feedrate. Full output represents design feedrate.
Belt Load Follows the belt load as measured by the weigh suspension. Full output
represents design belt load.
Belt Speed Follows the belt speed, normally as measured by tacho #1. Full output
represents design belt speed.
Setpoint Follows the actual setpoint, regardless of setpoint mode. Full output represents
design feedrate.
Available This mode is unused by the application. It makes it possible for a supervisory
system, such as the SuperBridge PLC interface to “borrow” the analog output.
Type
0-20 mA - The mode selected is scaled between 0 and 20 mA or 0 and 10 V.
4-20 mA The mode selected is scaled between 4 and 20 mA or 2 and 10V.
Digital I/O Mapping
The MC³ allows you to configure the digital inputs and outputs to your system’s requirements. By
allowing mapping of the I/O, the MC³ gives you flexibility in design of your system.
I/O mapping requires a layered approach to the design process. In the MC³ there are two layers,
physical and logical. The physical layer is connected to the outside world, for example relays and
switches. The inputs and outputs have names like “Rack 1 Input 3”. The logical layer is what the
MC³ application acts on. The inputs and outputs have names like “Run Permission” or “Belt
Slippage”
CAUTION: Changes you make, using the I/O mapping screens take effect immediately, as you make them
This function must be used with extreme care. For most applications, the default values
should be used.
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