Page 2 of 4
75.0061.07 LO-21 20190318
Page 2 of 4
75.0061.07 LO-21 20190318
MOUNTING & WIRING
WIRING TO MICROCELL
If using dry contact safety beams, such as BEA’s Microcell, remember these changes:
• Power the safety beams with the same transformer that is used for the LO-21.
• The black/white striped wire is not used and should be taped off.
• The gray and purple wires of the LO-21 go to the NO and COM dry contacts of the safety beams.
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.
HYDRAULIC UNIT / AC MOTOR
If AC voltage is > 50 VAC, use the provided 10,000 Ohm resistor to wire in-line with the red wire.
Below are examples of a Keane Monroe Series 2000 swing-door operator.
WIRING TO HYDRAULIC UNIT
WIRING TO AC MOTOR
* If using safety beams, blue and green wires must be wired in parallel with
the Bodyguard/DK-12 connection to the SAF and COM of the door control.
white
= required connection
= optional connection for
photo beams
green
red/white
white
gray
purple
re
d
black
re
d
black
yellow
green*
blue*
brown
orange
DATA +
DATA -
NC
NO
COM
PWR
PWR
7
6
5
4
3
2
1
LO-21
LOCK-OUT
RELAY
DK-12/Bodyguard
24 V TRANSFORMER
+
-
DOOR
CONTROL
DC
MOTOR
SAFETY
NOT
USED
115 VAC
MOTOR
MOTOR
MICROCELL
LO-21
LOCK-OUT
RELAY
MOTOR
white
orange
10K RESISTOR
TO DOOR CONTROL
red
black
LO-21
LOCK-OUT
RELAY
AC MOTOR
orange
white
10K RESISTOR
red
black
SOLENOID WIRES
(TYPICALLY RED OR BLACK)
