MULTIPORT ELECTRONIC CONTROLLER continued...
Register |
|
| Read disable positions. |
40003 |
|
| - Bits 1 to 8 indidacte which positions are disabled. |
|
|
|
|
Register |
|
| Read current encoder position. |
40004 |
|
| - 0 to 1023 |
Register |
|
| Write to set home position number. |
40005 |
|
| Read current home position number. |
|
|
| - 1 to 8 |
Pin #2 | = | ||
Pin #3 | = | ||
Pin #5 | = | Signal ground | |
Pin #7 | = | RTS to host | |
Pin #8 | = | CTS from host | |
Pin #6 | = | ||
Pin #9 | = |
General
-1 pair twisted shielded
-120 ohm impedance
-30 Volt rating
-24 gauge
-stranded conductors
Example: Belden #9841 with
Optional software is available for personal computers in DOS, Windows 3.11, and Windows 95 versions.
E.ELECTRONIC CONTROLLER FEATURES
When a command is sent from the host device to move the valve to a position, the MEC turns on the motor and monitors the position until the valve is within a few degrees of actual position. At that time the motor will be turned off to prevent its momentum from overshooting the required position. If the valve is still not quite on position, the microcontroller will pulse the motor to slowly move to the exact position. The microcontroller will also compensate for changes in torque requirements to accurately position the valve, regardless of the media or valve conditions.
Small pushbuttons on the circuit board allow local control for calibration/maintenance purposes.
Jumpers on the circuit board will disable any ports on the Multiport Valve which are not being utilized.
LED's on the circuit board indicate operating status.
8