Omron VARISPEED E7 User Manual page 223

Fault Reset Command Active (Setting: 11)
If a multi-function digital output is set to 11 the output is switched ON as long as a fault reset command is
input at one of the digital inputs.
Reverse Direction (Setting: 1A)
If a multi-function digital output is programmed for this function the output is switched ON whenever the
motor is rotating in reverse direction.
OH Pre-Alarm (Setting: 20)
The overheat fault function (OH) is designed to protect the Inverter from excessive temperature damage. Ther-
mistors attached to the heatsink of the Inverter monitor the temperature and will make the Inverter trip if the
temperature reaches 105 °C.
An OH pre-alarm digital output will be switched ON whenever the heatsink temperature reaches the level
specified by parameter L8-02 (Overheat pre-alarm level). Parameter L8-03 (Operation selection after overheat
pre-alarm) will determine the Inverter's response to reaching the OH pre-alarm level (besides switching the
configured digital output).
Drive Enabled (Setting: 38)
If a multi-function digital output is programmed to 38 the output is switched ON when the Inverter is enabled.
The Inverter can be enabled or disabled using a digital multifunction input (see also
Drive Waiting (Setting: 39)
The digital output will close during the time-out period between the input of a RUN command and the expir-
ing of the delay time specified by b1-11.
During oH and Reduced Frequency (Setting: 3A)
If a multi-function digital output is programmed to 3A the output is switched ON when an Inverter overheat
alarm has occurred and the motor is running at reduced speed according to parameter L8-19 (Frequency refer-
ence during OH pre-alarm). See also
RUN Command from Option Card/Communication Option (Setting: 3B)
If a multi-function digital output is programmed to 3B the output will be switched ON when the RUN com-
mand is input from the built-in communication (Memobus, N2) OR from a communication option card (SI-S1,
SI-N1, etc.). If both RUN commands are off the output will be switched OFF.
Cooling Fan Fault (Setting: 3D)
If a multi-function digital output is programmed to 3D the output will be swathed ON when the internal cool-
ing fan is faulty. Whenever this output is switched ON the Inverter should be immediately stopped and ser-
viced for internal fan replacement. If the Inverter continues to run in this state, its internal temperature will
increase, resulting in a potential decrease of lifetime.
6-66
page 6-47.
page 6-54).