33
Section Assemby
Reverse Jog Switch Operation
Reverse Jog Switch
The Single Speed Reverse Jog operates under the following conditions:
a) When the power is on and the anti-jam switch is open due to a conveyor jam.
b) When the power is on and the conveyor was stopped via the "STOP". The "START" switch
must be pressed to restart the forward motion of the conveyor.
c) If the reverse jog switch is pressed while the conveyor is moving forward, the forward motion
will stop as long as the switch is pressed. Releasing the switch will restart the belt forward
motion.
d) If the conveyor is stopped by the shut-off shelf, the "STOP" must be pressed before the reverse
switch will work.
The VFD Reverse Jog operates under the
following conditions:
a) When the VFD is powered on regardless if the
machine power is off.
b) If the button is pressed when the conveyor
is moving forward, the conveyor will run
in reverse as long as the button is pressed;
releasing the button returns the forward motion
of the belt.
c) When the anti-jam switch is open and the
reverse button is pressed, the conveyor
will run in reverse as long as the button is
pressed. Releasing the button stops the
conveyor. The START button must be
pressed to restart the conveyor.
d) The reverse button will work if the belt was
stopped by the shut-off shelf.
Anti-jam Switch
A
B
C
Anti-Jam Switch Adjustments
The anti-jam switch has three adjustments.
Refer to the letters in the photo at right:
A. The base mounting bracket has horizontal
slots for positioning the tensioner arm sprocket
against the drive chain. This is a factory setting
and should not require changing.
B. The limit switch bracket has vertical slots to
adjust the switch up and down. Raising the
switch reduces the switch reaction time,
lowering it increases the reaction time.
C. The tensioner arm spring sets the amount
of force required to operate the jam switch. The
tighter the spring the more load it takes to
operate the switch and stop the conveyor.
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