1. Inputs
Input Polarity Connected to Operation when active
I0 Normally closed Kerb lowered Stops the barrier from raising when kerb interlock ON
I1 Normally Closed Stop circuit Barrier stops if door open
I2 Normally Open Raise signal Raises Barrier
I3 Normally Open Lower signal Lowers barrier
I4 Normally Open Raise limit switch Arm has reached its fully open position
I5 Normally Open lower limit switch Arm has reached its fully closed position
I6 Normally Open Safety loop Detector/Photocell Barrier stops and returns the the raise position until clear.
I7 Normally Open Auto Loop Raises the barrier from the auto loop
2. Outputs
Output: Polarity: Connected to: Operation when active:
Q0 Normally Open Motor controller slow down Active to slow barrier down
Q1 Normally Open Motor controller open direction Active to Raise barrier
Q2 Normally Open Motor controller close direction Active to lower barrier
Q3 Normally Open Boom Lights Active to operate boom lights
Q4 Normally Open Traffic light relay Active when green light in
Q5 Normally Open Maglock or siren Active to operate maglock or siren (depending on parameters)
Q6 Normally Open Slave raise or Barrier raised Active to raise the slave barrier or give barrier raised output
Q7 Normally Closed Slave Safety/close or barrier lowered Active to lower the slave safety or give barrier lowered output
D
3250
Electrical Troubleshooting guide.
The table (bottom) relates to the diagram directly below to help you trouble shoot electrical
component errors
PWR
BAT
RUN
EROR
SD
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
IN OUT
M221 TM221M16R
The image on the left shows the input and output
LED indicators, use these with the chart below
To identify any faults with the barrier. The example
On the left shows that the barrier is lowered, the
Photocells/loop are healthy and the stop circuit is
Also healthy.
Note, the PLC is located in the barrier cabinet.
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