Omron Varispeed E7 User Manual

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 Motor Preheat Function
The motor preheat function can be used to prevent e.g. moisture inside the motor due to condensation. Two
different current levels are available. The preheat currents can be set in parameters b2-09 and b2-10 as a per-
centage of the Inverter rated current. Both functions are enabled by digital inputs. If the Drive Enable (H1-
=6A) or Bypass Drive Enable (H1-=70) function is used the motor preheat function 2 has to be used,
the preheat function 2 can then also be activated without enabling the drive.
Related Parameters
Multi-function Digital Inputs (H1-01 to H1-05)
The time chart for motor preheat is shown below.
Fig 6.63 Motor Preheat Function 1 Time Chart
Parameter
Number
Name
Setting
Range
Factory
Setting
Change
during
Operation
Access
Level
b2-09 Motor preheat current 1 0 to 100 0% No A
b2-10 Motor preheat current 2 0 to 10 5% No A
Set value Function
60 Motor preheat 1
80 Motor preheat 2
Motor preheat
RUN
Output
frequency
Output
current
Motor
preheat
Motor
preheat
E1-09 b2-01
b2-03
b2-04
b2-09
b2-02

Omron Varispeed E7 Specifications

General

Brand	Omron
Model	Varispeed E7
Category	Inverter
Language	English