Spotline V2: Operation
LimitsSpotline V2 Testing Functionality
Connect the Spotline to a Stagehand Pro - The socket end of each cable attaches to the Spotline
Pro Motor and Brake Cable
Signal Cable
Test motor brake and load brake functionality
Stagehand Pro 5
Verify each limit registers on the Stagehand
Use a small flat head screwdriver to manually actuate each switch inside the limit
This will indicate as FWD LIMIT, REV LIMIT, or ULT LIMIT
Slowly jog both forward and reverse
The load brake will release when you press FWD or REV
The motor brake will release once it receives a speed signal
Verify that when jogging FWD, the drum rotates clockwise when looking from the drum end, and that the encoder counts on the Stagehand are counting UP
Verify that when jogging REV, the drum rotates counterclockwise when looking from the drum end, and that the encoder counts on the St agehand are counting DOWN
Setting the Spotline Limits
Check out our Spikemark limits section for a better idea of which limits to set, and where to set them.
Jog the scenery to the location where you want to set the limit
E-Stop the Spotline
Remove the limit cover
Loosen the primary limit screw
Adjust your limit with smaller limit screws. We’ve color matched each screw to one of the disks in the stack
Ultimate Forward
Initial Forward
Initial Reverse
Ultimate Reverse
Forward movement will rotate the stack [DIRECTION] when viewed from above
PRO TIP: Patience (and sometimes persistence) is key!
Get the actuator close to the switch then slowly continue to rotate
When you hear it *click*, very slowly back OFF the limit until you hear it *click* again
EXTREMELY carefully and slowly rotate back onto the switch until it *clicks*
Gently re-tighten the primary screw to prevent the cam stack from slipping/changing.
NOTE: Too much torque on this screw can cause the whole cam stack to rotate and drastically change where the limits are tripped
Verify that the limit stops the motion where desired
Jog the Spotline off the limit (this is usually about 18”-36” inside of where the limit triggered)
Jog back onto the limit
If it doesn’t stop within the desired tolerance, try again until it stops where you want
Repeat steps 3-6 for each hard limit.
When all limits are set, it is best practice to go through and re-check all limits to verify that the relationship between all 4 is correct.
Setting the Cross-Groove
The sensor has a light that turns on when the bar is WITHIN PROXIMITY.
If the light is out, you will see a X-Groove fault.
The built in Cross-Groove detection on the Spotline v2 is set at the factory, however, it is possible to adjust. When the arm of the cable keeper moves too far away from the tip of the induction proximity sensor, the Stagehand registers X-Groove and stops motion.
NOTE: Fibrous rope can often squish enough that it will not reliably trigger a cross-groove without adjusting the sensitivity.
Decreasing the gap between the arm and the sensor will allow the arm to travel more distance before X-Groove is tripped.
Increasing the gap will cause the sensor to trip sooner, or even be stuck in X-Groove.
Loosen the nut on the bottom side of the proximity sensor bracket
Push the proximity sensor up until it is in the desired position
This shifts the gap from between the bottom nut and the brack to the top nut and the bracket
Tighten the top nut down onto the bracket to secure the sensor
WARNING: Raising the sensor too high can cause the arm to physically rest (or smash) on the sensor.
WARNING: This can be set high enough that a cross-groove is NOT detected.
To INCREASE Sensitivity
Loosen the nut on the top side of the proximity sensor bracket
As this nut loosens, gravity will likely pull the sensor down. If it’s stuck on the threads, a gentle wiggle or nudge down should get it to drop
Tighten the lower nut onto the bracket to secure the sensor
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