Pump protect
A Pump Protect function can be used to turn off the controller and issue an alarm (Pump
Protect Alarm 60) when system pressures, temperatures, levels, etc. are outside of the
normal operating range for the system. The Pump Protect function can be configured on
digital input 19 and digital input 27. These inputs can be controlled by an external device
such as a suction pressure switch, an over pressure switch, a temperature switch, a
differential pressure switch, etc. The device chosen should be normally closed. The
[22-00] Pump Protect Delay parameter can be configured to delay the onset of the Pump
Protect Alarm to prevent nuisance tripping. When the input is disconnected from the 24V
supply, the delay timer will start. If the input remains disconnected for the time indicated
in [22-00]Pump Protect Delay, the controller stops the motor and issues
Alarm 60 Protect
Protect
. If a Pump Protect Alarm is issued, the controller will attempt to restart if the
[14-20] Reset Mode parameter and the [14-21] Automatic Restart Time parameter are set
to allow automatic restarting. To prevent an automatic restart set the [14-20] Reset Mode
to Manual Reset. Note that the [14-20] Reset Mode parameter affects all other Alarms that
are not listed as a Trip Lock Alarm. Refer to the Warnings/Alarm Messages section for
details.
NOTE: This function can be enabled using the Start-Up Genie.
Figure 76: Connections for adding Pump Protect
Table 10: Parameter settings for enabling a Pump Protect Alarm on DI19
Parameter number
Parameter description
Set to
[5–11]*
Terminal 19 Digital Input
Pump Protect
[22–00]
Pump Protect Delay
Set to the desired delay time. If set to
10 seconds, the Pump Protect Alarm
will be issued 10 seconds after the
input is disconnected from 24V. The
input must remain disconnected for
the entire delay time for the alarm to
be issued.
[14–20]
Reset Mode
Set to the desired number of
automatic resets. If a fault occurs
more than this setting, a manual
reset is required. Set to Manual Reset
if no resets are allowed. Default
setting is: Automatic reset x 3.
[14–21]
Automatic Restart Time
This is the time between when an
alarm/warning is issued and when
the controller attempts the next
restart. Default setting is 30 seconds.
* To configure DI 27, set [5–12] to Pump Protect.
5 Electrical Installation
Aquavar
®
Intelligent Pump Controller - 150 HP to 600 HP INSTRUCTION MANUAL
67
Summary of Contents for Aquavar
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