ITT PumpSmart PS220, Руководство по конфигурации и эксплуатации

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PS220 Configuration & Operation Guide
179 PS220
Function & F
eatures
Basic Pump Protection.
The Basic Pump Protection functionality’s purpose is to identify and react to pumping system conditions when
three events occur while in the process control mode (any choice of control).
1. The pump is running at a predetermined percentage of maximum speed.
2. The process controls operating point is a predetermined percentage below 100%.
3. A predetermined proof time has expired.
This event could be the result of several upset conditions both internal and external of the pump. The
PumpSmart PS220 cannot determine what the cause of the event is but it will provide the desired notification
and response if the event does occur.
Notes
1. The PumpSmart PS220 keypad will display an alarm or fault message “Basic Pump Prot. Alarm” when this
event occurs.
2. Basic Pump Protection is not available in Basic Speed Control or in Local control.
This functionality can be configured with the PumpSmart PS220 Configuration Wizard. To access this Wizard,
from the Home Screen follow the path:
Menu>PS220 Configuration>Pump & VFD Protection>Pump Protection>Yes> Follow the prompts
The individual steps that will be performed are:
1. Configure enabling of the Basic Pump Protection.
2. Configure the Response
1. Disabled:
The PumpSmart PS220 will not respond. The pump will continue to run at the maximum allowed speed and
while not achieving the setpoint requirement. This is the Default.
2. WARNING:
The PumpSmart PS220 will issue a warning message of “Basic Pump Protection”. The pump will continue to
run at the maximum allowed speed while not achieving the setpoint requirement.
3. ALARM AND/OR CONTROL:
The PumpSmart PS220 will either:
A. Issue a warning message, and either run at minimum speed or stop. It can be configured to automatically
re-start after a delay period and then run to maintain the process setpoint. It can be configured to follow this
routine a set number of times before a hard Fault is issued. The Fault will have to be reset, and manually
restarted. Refer to the “Fault Tracing” section for further information.
B. A hard Fault is issued, and it will stop. The fault message will be displayed, and it will have to be reset, and
manually restarted. Refer to the “Fault Tracing” section for further information.
3. Configure the Protection Limit.
The Pump Protection limit is the percentage value difference between the operating setpoint, and the actual
setpoint, at which the Basic Pump Protection Function becomes active. The default value is 97%.