NORD Drivesystems BU0100 User Manual
Page 8
NORDAC SK 140E
8
Technical modifications observed
BU 0100 GB
2.4 Display and settings
The following controls are available for the SK 140E:
2.4.1 Status LEDs
These LEDs are visible through a lateral transparent screw plug.
red LED:
OFF
no fault present
green LED:
Blinking briefly
Long pause
Operational (Standby),
System voltage and temperature are OK
Permanently
on
--- Electronic
switch is active (ON, motor turns)
red LED:
ON
a fault is present
green LED:
Blinking 1 x
Pause
[RUN] was already active before applying the 24 VDC
Blinking 2 x
Pause
Automatic feature is OFF and the system voltage is
absent or the motor temperature is too high
Blinking 3 x
Pause
Automatic feature is ON and the system voltage is absent
or the motor temperature is too high
2.4.2 Slide switch for automatic operation
The slide switch is used to switch the automatic operation on or off. This refers to the characteristics of
switching on again after the motor starter has cut off because of excess motor temperature.
[ON]
Switching off:
OK message (signal OK at low) is removed in case of excess temperature. The motor is
automatically switched off by SK 140E.
Switching on again:
The drive will not start automatically if excess temperature is no longer present. The
control signal [RUN] must first be switched off and then on again or, alternatively, the
slide switch is pushed to [OFF] and again to [ON]. Attention: The drive starts immediately!
[OFF]
Switching off:
OK message (signal OK at low) is removed in case of excess temperature. The motor is
not switched off by SK 140E.
Switching on again:
The OK message is switched high again when the excess temperature is no longer
present. The motor would start up even in case of excess temperature!
Status LEDs
(red / green)
Slide switch
(Automatic ON/OFF
)
Transparent screw plug
To permit viewing of status
LEDs from outside