Bea LO-21U User Manual

75.1041.08 LO21U 20150708 Page 1 of 5

PRODUCT
DESCRIPTION

TECHNICAL
SPECIFICATIONS

USERS GUIDE LO-21U

LOCKOUT RELAY

SAFETY
PRECAUTIONS

The LO-21U (PN: 10LO21U) is a micro-processed lock out module designed to operate on swing door applications with
BEA’s Bodyguard or DK-12 overhead presence sensor. The LO-21U interprets door open or door closed position based
upon motor voltage input. The motor voltage information is sent from the LO-21U to the Bodyguard or DK-12 via data lines.
The LO-21U provides optional safety beam input (dry contacts) to override the inhibit signal during closing.

DESCRIPTION

SPECIFICATION

Supply voltage

12 to 24 VAC / 15 to 24 VDC

Operating frequency

4 MHz (Microprocessor)

Power consumption

10 mA at rest, 50 mA Maximum

Output

(2) SPST Relays

Maximum voltage – Relay contacts

60 VDC, 120 VAC

Maximum current – Relay contacts

2A DC, 0.5 A AC

• 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.

COMPONENT ID

Green LED Dipswitches

Red LED

75.1041.08 LO21U 20150708 Page 2 of 5

WIRING
INSTRUCTIONS

DIPSWITCH
SETTINGS

1. Wire the LO-21U according to the chart below.

All LO-21 wiring must be accomplished with the module unplugged. If the red / white striped and white
wires (data wires) touch each other when power is applied, damage to the unit will result.

WIRE COLOR

CONNECTION POINT

Black

Motor (-)

Red

Motor (+)

Violet

Bodyguard Pin 3 (Common)

White

Bodyguard Pin 6 (Data - )

Black / White

Safety Beam (Common)

Orange

Power (-) / 12 to 24 volts AC/DC

Gray

Bodyguard Pin 4 (N/O)

Red / White

Bodyguard Pin 7 (Data +) and Safety Beam (N/O)

Brown

Power (+) / 12 to 24 volts AC/DC

Green

Door Control (Common)

Blue

Door Control (Activate)

Yellow

Door Control (Safety)

1. The dipswitches are located at the end of the LO-21U, opposite of the wire connection terminal. There are 8 positions
available. Dipswitch designations are as follows:

BLAN K 1

INHIBI T GND 2

INHIBI T + 3

N.C. 4

N.O. 5

COM 6

PO WER 7

PO WER 8

BLAN K 1

INHIBI T GND 2

INHIBI T + 3

N.C. 4

N.O. 5

COM 6

PO WER 7

PO WER 8

115 VAC

BODYGUARD

DK-12

STALL/ STOP-n- HOLD
COMMON
SAFETY
ACTI VATION

DOOR CONTROL

1 PWR

2 PWR

3 COM

4 N/O

5 N/C

EAGLE

­+ MOTOR VOLTAGE

24 V
TRANSFORMER

LO21U

MOTOR

DATA + 7

DATA - 6

N.C. 5

N.O. 4

COM 3

POWER 2

POWER 1

RED/WHITE

BLACK/WHITE

WHITE

ORANGE

BROWN

SAFETY BEAM
INPUT DRY CONTACTS

BLUE

YELLOW

GREEN

RED

BLAC K

VIOLET

GRAY

APPROACH SIDE

SAFETY SIDE

1 2 3 4 5 6 7 8

OFF

ON

Default settings shown.