Figure 8-2. Timers Screen - Page 2 - Emerson Vilter Vission 20/20 Operation And Service Manual

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Section 8 • Timers
for a time period that exceeds the setpoint of the
Accumulative Anti-Recycle Timer, then when the
compressor shuts down, it will be allowed to restart
immediately.
Compressor Interlock Bypass:
• Once the Vission 20/20 has sent a command to the
compressor starter to start, a return signal is expect-
ed. This timer defi nes how much time to wait for that
signal before setting a trip condition.
High Motor Amps Safety Bypass:
• Starting motors can typically pull much more than
its rates full load amps for a short time. This timer ig-
nores that sudden inrush of current for the specifi ed
time.
Vission 20/20 • Operation and Service Manual •Vilter/Emerson • 35391SC 1.9
Emergency Stop Timer:
• Defi nes the amount of time the compressor is in a
Low Suction Pressure Safety Bypass:
• Sets the time that the compressor is allowed to run
High Superheat Temp Safety Changeover:
• This timer activates at shutdown and changes the re-

Figure 8-2. Timers Screen - Page 2

False start condition before activating the Emergency
stop. The emergency stop output can be connected
to a shunt-trip in the case of a run away compressor
to remove all power to the system.
at lower suction pressure then would usually be allow
at start-up.
start parameters if the time has not been met.
8 – 3

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