ABB ACQ80 Firmware Manual page 52

52 Program features
Note: Fault D4B0 cannot be reset until selected DI in parameter
is low.
source
Drive
and
Pump
ON
82.47 Dry run trip
monitor time
Drive
ON
and
Pump
82.02 Dry run
82.02 Dry
OFF
source
run source
OFF before
detected
82.47 Dry run
trip monitor
time
Scenario 1 - False alarm
Dry run protection through minimum load current
The dry run protection through minimum load current
current) detects the dry run condition of the pump based on the
Min load
minimum load current value defined in the parameter
The drive trips on the fault
• actual current of the motor is less than the dry run current limit set in
parameter
82.46 Dry run current
• actual speed of the motor is greater than the minimum speed set in
parameter
79.51 Pump minimum
• both the conditions exists for the time set in parameter
monitor time.
You can define the fault reset time with parameter
Settings
Parameter group
82.47 Dry run trip
monitor time
82.02 Dry
goes
run source
detected
elapses.
D4B0 Running dry
82 Pump protections
82.48 Dry run
reset time
21.22 Start delay
82.47 Dry run trip
monitor time
and
82.02 Dry run
is still ON and
source
displays
D4B0 Running
warning
dry
Scenario 2 - Actual dry run
whenever the
limit,
speed, and
82.48 Dry run reset
(page 239).
82.02 Dry run
and
elapses
(82.02 Dry run source
82.46 Dry run current
82.47 Dry run trip
time.
=
limit.