LSIS 6731001500, User Manual

Page: 229 / 659

216
Learning Advanced Features
In the graph above, Pipe Break occurs if the feedback is smaller than the value calculated by
multiplying the two values set at PID-04 and PRT-61(PID-04 x PRT-61) at the inverter’s maximum
output (when PID output is the maximum set value, or the inverter is running at the frequency set
at DRV-20).
5.20 Pre-heating Function
This function uses current to heat up the motor or pump to avoid the motor or the pump freezing
when they are not in operation.
Group Code Name LCD Display Parameter Setting Setting Range Unit
AP2
48
Initial heating
output current
Pre Heat Level 20 1–100 %
49
Initial heating
output duty
Pre Heat Duty 30 1–100 %
50
DC input delay
time
DC Inj Delay T 60.0 0.0–600.0 sec
IN 65–71
Terminal block
input 1–7
P1–7 Define 44 Pre Heat -
Initial Heating Setting Details
Code Description
AP2-48 Pre Heat Curr
Sets the current to be used for initial heating. Sets the current to motor no-
load current % value.
AP2-49 Pre Heat Duty
Sets the duty (time) for the current to be used for initial heating, from 10
seconds to % value.
AP2-50 DC Inj Delay T
Sets a certain delay time to prevent from an over current trip that may
occur when a DC input is performed after the inverter Free-Run stop.
IN-65–71 P1–7 Define Performs the Pre Heat function if the Pre Heat (44) terminal is set.
The initial heating function continually operates when the set multi-function input terminal is on
and until the inverter command is on. If an inverter command is input while the initial heating
function is operating, the inverter starts operation immediately.