The microprocessed LO-21P (PN: 10LO21P) Lock Out Relay is designed to provide a lockout function for the BEA
Bodyguard presence sensor, when used with the complete Parallax System. The LO-21P uses the motor and Bodyguard to
determine if the swing path of the automatic door is clear and allows the door to open or close. If the swing path of the
automatic door is not clear and the door is in the open position, the LO-21P will allow the Bodyguard to hold the door open
as long as it detects something. If the door is closed and there is something in the Bodyguard pattern, the LO-21P will
prohibit the activation device from opening the door.
DESCRIPTION SPECIFICATIONS
Power Supply 12-24 Volts AC/ DC
Operating Frequency 4 MHz (Microprocessor)
Power Consumption 10 mA at rest, 50 mA Max.
Output SPST Relay
Max. Voltage - Relay Contact 60V DC, 120V AC
Max. Current - Relay Contacts 2A DC, 0.5A AC
Dipswitches
Green LED – Activation
Red LED – Safety
• Shut off all power going to the header before attempting any wiring procedures.
• Maintain a clean & safe environment when working in public areas.
• Constantly be aware of pedestrian traffic around the door area.
• Always stop pedestrian traffic through the doorway when performing tests that may result in unexpected
reactions by the door.
•Always check placement of all wiring before powering up to insure that moving door parts will not catch any
wires and cause damage to equipment.
•Ensure compliance with all applicable safety standards (i.e. ANSI A156.10) upon completion of installation.
ELECTRICAL
INSTALLATION –
OPTION 1 –
STANDARD
WIRING
WIRE CONNECTIONS
Black Motor Input Red Motor Input +
Purple Bodyguard COM. Pin 3
White Bodyguard Data (-) Pin 6
Black / White Activation Sensor COM.
Orange Power input / 12-24 VAC/VDC ( - )
Gray Bodyguard N.O. Pin 4
Red / White Bodyguard Data (+) Pin 7 & Activation Sensor N.O.
Brown Power input / 12-24 VAC/VDC (+)
Green Door Control Common
Blue Door Control Activation
Yellow Door Control safety
LO-21P WIRING DIAGRAMS:
STANDARD WIRING
The wiring shown below may be used on most models of operators. See wiring diagrams at back of this manual for
specific diagrams.
BODYGUARD
DATA + 7
DATA - 6
N.C. 5
N.O. 4
COM 3
POWER 2
POWER 1
NOTE: Bodyguard MUST be programmed
to a Relay Output value of 2. Default is 1.
AUTO
OFF
HOLD
R
O
T
O
M
OPERATOR
+
-
Door Control
SAFETY
COMMON
ACTIVATION
STALL
115 VAC
24 V
TRANSFORMER
T
O
N
-
O
L
T
1
#
Q
E
R
O
6
#
orange
brown
LO-21P
:
E
DI
P
P
1
2
U
O
R
H
D L
E
UIR
7
N,
#
T
F
T
O
I
M
white
ING
R
E
Blk/white
red/white
red
black
yellow
:
S
green
blue
gray
purple
E
H S
C
I
W
T
S
-
T
5
E
#
S
H
G
O
T
T
U
O
K
C
O
N
O
8
,
F
#
F
Contacts to open
at desired point of
inhibiting
8 7 6 5 4 3 2 1
Stall SuperScan
1 2 3 4 5
1 2 3 4 5 6 7 8
Approach SuperScan
(Swing Side)
EAGLE
IMPORTANT:
Before connecting the red and black wires from the LO-21P to the Motor, be sure to check the polarity of the voltage
with a multi-meter, to determine which wire is the positive side. The red wire of the lockout module must always be
connected to the positive side of the motor. When a positive reading is observed on the meter, (while the door is in hold
open) the red probe indicates the positive side. Thus, the red wire of the lockout will always be attached to whatever
wire the red probe was on when a positive reading was obtained.
NOTES:
• For pairs of doors, wire the additional SuperScans the same as shown above.
• For the inhibit function, operator mounted auxiliary switches may be used – dry contacts only.
• Bodyguard must be programmed to a relay value of 2.
75.5079.08 20061129 Page 2 of 13
ELECTRICAL
INSTALLATION
OPTION 2 –
Operator Mounted
Switch
Wiring diagram below shows how to wire when using an operator-mounted switch to control the flow of voltage from the
motor to the lockout module. Switch should be set to close a set of dry contacts when door is within 2 to 3 degrees of the
full open position.
BODYGUARD
DATA + 7
DATA - 6
N.C. 5
N.O. 4
COM 3
POWER 2
POWER 1
24 V
115 VAC
TRANSFORMER
orange
brown
LO-21P
purple
gray
red/white
white
NOTE: Bodyguard MUST be programmed
to a Relay Output value of 2. Default is 1.
L
G
E
I
N
S
P
W
S
O
R
H
T
P
O
S
W
P
O
M
O
C
R
O
T
O
M
blk/white
red
black
yellow
green
blue
AUTO
OFF
HOLD
-
SAFETY
COMMON
ACTIVATION
STALL
Door Control
+
MOTOR VOLTAGE
L
E
B
U
L
O
-
D
O
E
H
C
I
T
W
.
W
X
S
U
A
R
O
A
R
T
E
C
H
C
I
T
S
O
P
N
E
O
N
T
A
E
L
S
D
O
N
I
T
I
O
OPERATOR
Contacts to open
at desired point of
inhibiting
H
C
I
T
F
L
U
L
8 7 6 5 4 3 2 1
Stall SuperScan
1 2 3 4 5
1 2 3 4 5 6 7 8
Approach SuperScan
(Swing Side)
EAGLE
IMPORTANT:
Before connecting the red and black wires from the LO-21P to the Motor, be sure to check the polarity of the voltage
with a multi-meter, to determine which wire is the positive side. The red wire of the lockout module must always be
connected to the positive side of the motor. When a positive reading is observed on the meter, (while the door is in hold
open) the red probe indicates the positive side. Thus, the red wire of the lockout will always be attached to whatever
wire the red probe was on when a positive reading was obtained.
NOTES:
• For pairs of doors, wire the additional SuperScans the same as shown above.
• For the inhibit function, operator mounted auxiliary switches may be used – dry contacts only.
• Bodyguard must be programmed to a relay value of 2.
75.5079.08 20061129 Page 3 of 13
ELECTRICAL
INSTALLATION
Option 3 – Double
Pole Double Throw
Switch
The wiring diagram below shows how to wire a DPDT switch to control the On-Off-Hold function, as well as data
between the motor and the LO21P.
BODYGUARD
DATA + 7
DATA - 6
N.C. 5
N.O. 4
COM 3
POWER 2
POWER 1
24 V
115 VAC
TRANSFORMER
brown
purple
orange
LO-21P
1 2 3 4 5
red/white
white
gray
NOTE: Bodyguard MUST be programmed
to a Relay Output value of 2. Default is 1.
blk/white
red
black
yellow
green
blue
1 2 3 4 5 6 7 8
Approach SuperScan
AUTO
OFF
HOLD
SAFETY
Door Control
COMMON
ACTIVATION
STALL
+
-
MOTOR VOLTAGE
8 7 6 5 4 3 2 1
Stall SuperScan
(Swing Side)
B
L
D
O
U
D
O
U
B
L
O
T
M
O
R
E
-
P
O
L
E
R
O
S
W
C
W
I
E
T
H
T
OPERATOR
Contacts to open
at desired point of
inhibiting
H
EAGLE
IMPORTANT:
Before connecting the red and black wires from the LO-21P to the Motor, be sure to check the polarity of the voltage
with a multi-meter, to determine which wire is the positive side. The red wire of the lockout module must always be
connected to the positive side of the motor. When a positive reading is observed on the meter, (while the door is in hold
open) the red probe indicates the positive side. Thus, the red wire of the lockout will always be attached to whatever
wire the red probe was on when a positive reading was obtained.
NOTES:
• For pairs of doors, wire the additional SuperScans the same as shown above.
• For the inhibit function, operator mounted auxiliary switches may be used – dry contacts only.
• Bodyguard must be programmed to a relay value of 2.
75.5079.08 20061129 Page 4 of 13
SET-UP
INSTRUCTIONS
75.5079.08 20061129 Page 5 of 13
Upon completion of all wiring, proceed with the set-up as follows:
1. Insure that the On-Off-Hold Open switch is in the ON position, and insure that the door control is powered and
operating normally.
2. Power the Bodyguard sensor and, using a BEA Remote Control, unlock the sensor and change the
Output Configuration to a value of 2. If nece ss ar y, refer to the Bodyguard User’s Guide for programming
instruction.
3. Power the LO-21P on with 12-24 VAC/VDC, and insure all sensors or other devices in the application are
properly powered
4. Observe the green LED on the Bodyguard upon powering. With the door in the closed position, the green LE D
should begin blinking, then expire approximately 5 seconds thereafter to indicate a successful set-up for the
closed-door position.
5. Activate the door to the open position, the Bodyguard should once again begin flashing green, then expire
approximately 5 seconds thereafter to indicate a successful set-up for the open-door position. If the door goes
into safety swing as soon as it starts to close and you have a time delay set for the length of the closing cycle,
reverse the black and red wires to the motor input for DC units. Correct any faults before proceeding.
6. Once the Bodyguard has learned the open and closed door positions, observe the green and red LED’s on the
STOP
LO-21P. Walk in and out of the field of detection for the Bodyguard while the door is open, an d then again when
it is closed. The LED’s indicate the following:
GREEN LED: The green LED, when illuminated, indicates that there is detection at the
RED LED: The red LED, when illuminated, indicates that there is detection at the Bodyguard
If the Bodyguard learns a “door closed” position, but does not execute a set-up for the
“open door position”, place the door to a hold open position. With a BEA remote c ontrol,
unlock the Bodyguard, and with the door in the open position, press the Magic Wand key
and then the number 2 – the Bodyguard should begin flashing green to signify a set-up. If
it does not, this will be a quick indication that the improper data is being sent for the
“open door” position. Check to insure that data exists on the data lines leading into the
Bodyguard. In the full open position, voltage should be approximately 9 to 12 volts DC. If
it is not, check the data lines (White wire on terminal 6 and Red/White wire on terminal 7)
for correct voltage (see chart).
CLOSED DOOR OPEN DOOR CLOSI NG DOOR
0 Volts DC 9 to 12 Volts DC 8 Volts DC
To perform a quick test by remote control to check motor wire polarity, perform the
following:
• Place On-Off-Hold switch in the ON or AUTO position.
• Activate the door and immediately walk into the Bodyguard detection pattern while
door is open. Door should be holding open at this point. Make sure there is no Eagle
activation during this time.
•Unlock the Bodyguard and press Magic Wand + 2. Green LED will begin flashing – If
door closes while flashing green, check for correct polarity at the red and black wire
from lockout.
Bodyguard while the door is in the open position.
If someone steps into the Bodyguard detection zone when the door is open, the LO-21P’s
Green LED will illuminate to indicate that the Bodyguard will be connected to the activation
circuitry of the door, thus holding the door open as long as there is detection.
Green LED will also illuminate when the activating device (Eagle) is triggered, or when On-OffHold Open switch is placed to the Hold Open position.
while the door is in the closed position. It may also indicate that there is an activation signal
from the Eagle or the Hold Open switch.
When the door is closed, and someone steps into the detection zone of the Bodyguard, the red
LED on the LO-21P will illuminate, indicating that it will ignore any activation signal it receives.
Therefore, the door will remain closed until the Bodyguard detection zone is clear. Once the
Bodyguard zone is clear and the door has been activated it will open and remain open for the
hold time set by the motion sensor and/or door control, and will also hold open during detection
at Bodyguard.
2
+
SETUP
INSTRUCTION
Cont.
DIPSWITCH
6, 7 and 8
OPERATION
75.5079.08 20061129 Page 6 of 13
7. Adjustment is necessary to configure the dipswitches to obtain the correct lock out time delay. To set the
dipswitches( 1 through 5) for lock out time, perform the following:
Activate the door to the open position.
Time the overall door closing cycle
Configure the dip switches according to the chart on Page 4 for the lockout time that is required
Activate the door again to the open position
Stand outside of the Bodyguard detection pattern, and while the door is closing, observe the red LED on the
The red LED on the Bodyguard should NOT illuminate during the closing cycle. If it does, it is probably
Reconfigure the dipswitches to add 1 second of lock out time.
When the lock out time is correct. The red LED will not illuminate during the entire closing cycle of the door.
8. The last test is to insure that the Bodyguard detects an object as soon as the door has stopped closing.
Simply allow the doors to begin closing, and step in behind the doors, into the Bodyguards field of
detection. The red LED shall illuminate and remain on at the Bodyguard, and at the LO-21P, as soon as
the door reaches the fully closed position, provided that an object remains in the Bodyguard’s detection
field.
9. Set the dipswitches according to the chart below to achieve the desired lockout time. The total lockout time
is the sum total of the dipswitches that are in the ON position. For easy reference, use the timetables
below. Default time is 7 seconds (times are approximate).
Time
Delay
(sec)
1 on off off off off 17 on off off off on
2 off on off off off 18 off on off off on
3 on on off off off 19 on on off off on
4 off off on off off 20 off off on off on
5 on off on off off 21 on off on off on
6 off on on off off 22 off on on off on
7 on on on off off 23 on on on off on
8 off off off on off 24 off off off on on
9 on off off on off 25 on off off on on
10 off on off on off 26 off on off on on
11 on on off on off 27 on on off on on
12 off off on on off 28 off off on on on
13 on off on on off 29 on off on on on
14 off on on on off 30 off on on on on
15 on on on on off 31 on on on on on
16 off off off off on
Dipswitch 6 Position Description of Performance
ON (Default) The LO21P expects to see voltage coming in at the red and black wire while the
OFF The LO21P expects to see voltage coming in at the red and black wire while the
Dipswitch 7 and 8
Position
7 OFF / 8 ON (Default) The LO21P CLOSES the Safety circuit (yellow wire) upon a Bodyguard
7 ON / 8 OFF The LO21P OPENS the Safety circuit (yellow wire) upon a Bodyguard
Bodyguard
seeing the door at the very last degree or two of door closing, which would indicate that the lock out time
needs to be slightly increased.
Dipswitch # Time Delay (seconds)
1 1
2 2
3 4
4 8
5 16
dip 1
1 sec
dip 2
2 sec
dip 3
4 sec
dip 4
8 sec
door is in the Open position. Typical for DC motors.
door is in the Closed position.
Description of Performance
Detection during the door closed position
Detection during the door closed position
dip 5
16 sec
Time
Delay
(sec)
dip 1
1 sec
dip 2
2 sec
dip 3
4 sec
dip 4
8 sec
dip 5
16 sec
TROUBLESHOOTING
COMPANY
CONTACT
PROBLEM PROBABLE CAUSE CORRECTIVE ACTION
Door will not open
– all LED’s are
OFF at the LO21P
1. Faulty door control
2. Faulty LO21P
3. Faulty On-Off-Hold
Open switch
4. Faulty Eagle
5. Faulty wiring
1. Insure input power is good at LO21P – orange and
brown wires. Should be 12 to 24 volts AC or DC.
2. Go directly to door control and jumper common and
activation input. If door opens, proceed to next step. If
not, replace/repair faulty door control.
3. Go to LO21P and jumper the red/white striped wire to
the black/white striped wire. Green LED on LO21P
should come on, and door should open. If not, replace
LO21P. If LED comes on, but door does not open, check
to insure that the blue and green wires are connected to
the door control properly.
4. Check to insure that On-Off-Hold Open switch is
functioning properly.
5. Check Eagle sensor for proper operation. Jumper
common and N.O. terminals while wires are attached. If
door does not open, check wiring between Eagle and
LO21P.
Door will not open
– red LED is ON at
LO21P
1. Bodyguard is in detection
2. Bodyguard not
programmed properly
3. Faulty wiring between
Bodyguard and LO21P
1. Launch a setup on Bodyguard
2. Insure Bodyguard relay output is programmed to a
value of 2. Default is 1.
3. When Bodyguard is in detection, an open circuit
occurs at the purple and gray wires on the LO21P.
Thus if there is any break in wiring between purple
and gray and the LO21P, the lockout will react the
same as if the Bodyguard were in detection. Insure
there are no breaks in the wiring.
Door will not close 1. On-Off-Hold Open switch
is in Hold Open position
2. Bodyguard is in detection
3. Faulty door control
1. Place switch in On or Auto position
2. Launch a setup at Bodyguard
3. Remove wire from common and activate terminal at
door control, if door does not close, replace/repair
faulty control.
Bodyguard keeps relearning with each door
position
1. Incorrect data polarity at
Bodyguard
2. Insufficient voltage
switching at red and
black wire of LO21P
1. Insure that the white wire goes to terminal 6 of the
Bodyguard, and the red/white striped wire goes to
terminal 7 of the Bodyguard
2. When door is closed, there should be 0 volts
observed on the red and black wires of the LO21P.
When the door is open, voltage should be greater
than approximately 9 volts. If voltage is not great
enough at red and black wires when door is open,
the LO21P will not be able to send the correct data
to the Bodyguard. Remember, polarity must also be
correct. The red wire must ALWAYS connect to the
positive wire of the motor, as observed during door
open position. See important note on page 2.
As the door is closing,
the Bodyguard, upon
seeing the closing door,
seems to reactivate the
1. Dipswitch 6 at LO21P is
in wrong position
1. Place dipswitch 6 in opposite position and re-test the
door
door to the open
position
IMPORTANT NOTE: When experiencing sensor system problems, it is recommended to disable the main power
supply as to fully disable the system, until necessary repairs can be made.
Do not leave problems unresolved. If a satisfactory solution cannot be achieved after tr oubleshooting a problem, please call B.E.A.,
Inc. If you must wait for the following workday to call B.E.A., leave the door inoperable until satisfactory repairs can be made. Never
sacrifice the safe operation of the automatic door or gate for an incomplete solution.
The following numbers can be called 24 hours a day, 7 days a week. For more information, visit www.beasensors.com.