65
Application Notes
RUN/JOG switch
Using a RUN/JOG switch is recommended in applications
where quick stopping is not needed and frequent jogging is
required. Use a single pole, two position switch for the
RUN/JOG switch, and a single pole, normally closed,
momentary operated pushbutton for the JOG pushbutton.
Connect the RUN/JOG switch and the JOG pushbutton as
shown in Figure 18, page 66. When the RUN/JOG switch is
set to JOG, the motor decelerates to minimum speed
(minimum speed is determined by the minimum speed
trimpot setting). Press the JOG pushbutton to jog the motor.
Return the RUN/JOG switch to RUN for normal operation.
ATTENTION:
Starting and stopping with the start/stop
terminals does not disconnect AC power in the stop
position. A hardwired AC power disconnection switch
must be mounted between the AC source and
terminals L I and L2. This is required, as the DC3 drive
does not have an armature loop contactor. A single
fault like a power device short may cause motor
rotation when in the stop mode. The user is responsible
for assuring safe conditions for operating personnel by
providing suitable guards, audio or visual alarms, or
other devices. Failure to observe these precautions
could result in bodily injury.
Summary of Contents for RELIANCE ELECTRIC DC3N Series
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