KB Electronics KBPI-240DR - Manual (Page 18)

16
MOMENTARY
START
1
2
3
4
5
6 RUN
JOG
STOP
RTN
+24V
COM
LS1 (N/C)
TB3
SWITCH
(N/O)
Shield
(Do not ground)
FIG. 15 – CYCLE ON DEMAND WIRING The "Cycle on Demand" function is required for most
indexing table applications. The control can be
easily set for this operation as follows:
1.
Jumper "JW" must be in the "R" position
(factory setting) see table 8, p. 13.
2. Jumper "JR" must be in the "F" position (factory
setting) see sec. VII, D, p. 13.
3. Wire limit switch LS1 (normally closed) and
start switch (normally open) as shown.
The "Cycle on Demand Operation" begins with limit
switch LS1 riding on the cam lobe. (Since LS1 is a
normally closed switch, it will be open when riding on
the lobe.) The cycle is initiated by momentarily
closing the start switch. The drive will start even
though LS1 is open (Jumper JW is in the "R" position
giving priority to the start switch which overrides the
stop.) As the cam shaft rotates it moves off LS1
which closes. When the lobe rotates around back to LS1, LS1 now opens and the drive stops. The
drive is now ready to repeat the cycle by initiating another start command. See fig. 16.
Note: A normally open (NO) STOP contact can also be used. To convert to a normally open
STOP, move jumper JS from the factory position "NC" to position "NO."
FIG. 16 – SEQUENCE OF CYCLE ON DEMAND OPERATION