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Technical Information
Connection J1 Remote I/O Interconnections
Vent Valve Operation – Pulsed Venting
After pump STOP command, the controller performs a CONTROLLED
VENTING (see dedicated paragraph) to reduce the rotational speed
down to 100 Hz. When the pump has reached 100Hz, the valve is
closed for a time defined by WIN 126 (delay), then it opens as set in
WIN 147.
If WIN147 = 0, the valve remains open until next START command. If
WIN 147 ≠0, the valve opens for the time indicated. Then it closes
until the next START command.
Please refer to following graph:
Reference to existing description: WIN 125 = 1, Auto Pump Speed.
If the pump is STARTING or in NORMAL OPERATION or in AUTOTUNING, the
NOTE
controller rejects the command OPEN VALVE.
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TwisTorr Medium-TMP Rack Controller User Manual / 87-901-049-01 (B)
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