Linear 110v User Manual

IEI PowerKey AC

®

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www.linearcorp.com

GENERAL SPECIFICATION: The IEI PowerKey AC 110v Machinery Access Control System is an indoor unit designed
to limit access to power devices only to authorized users. Up to 99 users may be programmed with a 1-6 digit code. The
PowerKey AC 110V is wired for 110 VAC devices only. Both sensed and unsensed switching is available. This will allow, for
example, wiring both a saw (sensed) and a blower (unsensed) to the PowerKey AC. The saw and the blower will turn on
simultaneously when a valid code is entered. The saw may be started and stopped over and over again using the trigger
or switch on the saw. Each time the saw is turned off the PowerKey AC will sense that the device is not being used and
an Auto Shut-Off Timer will start. If the saw is started once again the timer will reset. If the saw is not used again and the
timer runs out, the PowerKey AC will turn off power to both the saw and blower. To again allow power to the saw and to
start the blower, re-enter a valid code.

POWER RATINGS: The PowerKey AC can control a maximum of 20 AMPS or up to a 1 ½ HP motor. Exceeding these
ratings will cause permanent damage to the PowerKey AC. The current sensor within the device can detect loads over
.150 amps and up to 20 amps. If the PowerKey AC senses more than 20 amps through the red wire (due to a possible
overload of the motor), the unit will automatically shut down and the red and green LED’s will fl ash alternately indicating
an overload condition.

WEATHER RATING: The PowerKey AC is for indoor use only and should not be mounted outdoors.

TEMPERATURE RANGE: -20°F to 130°F, -28°C to 54°C

AUTO SHUT-OFF TIMER: When a proper code followed by the * key is entered, the power will be turned on to both the

sensed and unsensed device(s). Power will stay on as long as the sensed device is being used. After the sensed device is
turned off, the PowerKey AC senses the device is no longer drawing power (not being used) and the Auto Shut-Off Timer
starts. As a warning that the timer is about to run out, the PowerKey AC will fl ash green for the last 10 seconds of the
timer. After the timer completely elapses (programmable from10-990 seconds), the PowerKey AC will turn off the power to
the controlled device(s). A valid code must be entered to turn power on again. Power to the controlled device is on when
the green LED is on solid or fl ashing. Power may also be turned off manually by pressing and holding any key for ½ a
second.

Machinery Access Control System

Model 110v

LOCKOUT CODE: If there is some reason for which you do not want to let anyone operate the machinery being
controlled, (such as a worn belt which needs replacing for example), you can enter a “LOCKOUT” code, which will disable
all “NORMAL” user codes from operating the machinery. A fl ashing red LED will indicate this “LOCKOUT” condition. Enter
a “LOCKOUT” code again to release the PowerKey AC from this condition.

INSTALLATION STEPS: The PowerKey AC unit should ONLY be installed by a licensed electrician.

1. Mount the PowerKey AC in an indoor location convenient to the device to be controlled.

2. Check the power rating of each device to be controlled. The total power of both the sensed or unsensed devices
should not exceed 20 amps or 1 ½ horsepower.

3. Running a 110v line wiring coming to the PowerKey AC from the breaker panel is recommended.

4. Remove the outer cover of the PowerKey AC by removing the 4 screws of the cover. This will reveal access to the
wiring compartment of the PowerKey AC.

IMPORTANT: Access to the electronics is not necessary for installation. Removal of the inside cover will void
the warranty!

5. Connect (Hot) 110 VAC line wiring to black wire of PowerKey AC and to one red wire for sensed load. Also connect
Hot of 110VAC to one blue wire if needed for the auxiliary unsensed load (e.g. a vacuum system).

6. Connect (Neutral) 110 VAC line wiring to the white wire of the PowerKey AC and to the neutral load wire(s) coming
from the controlled equipment.

7. Connect the load wire from the device to be controlled to the other red wire. Connect the load wire from the
auxiliary device to the other blue wire.

8. IMPORTANT: Connect the Ground to the lug inside the wiring compartment.

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❏ 110 VAC POWER INPUT:

Black & White

Control Relay wiring:

Red Line 1 Sensed

Red Load 1 Use this wire for the controlled machinery

Example: a radial arm saw
This load is monitored.

B r e a k e r P a n e l

G R O U N D

H O T ( 1 1 0 V A C )

N E U T R A L ( 1 1 0 V A C )

C o n t r o l l e d L o a d 1

G R O U N D

L I N E 1

L O A D 1

( S E N S E D )

Blue Line 2 Unsensed

Blue Load 2 Use this power for auxiliary

Example: a sawdust vacuum system
This load is NOT monitored.

P o w e r K e y A C

G R O U N D L U G

G r o u n d L u g
B l a c k
W h i t e

R e d
R e d

B l u e

B l u e

C o n t r o l l e d L o a d 2

G R O U N D

L I N E 2

L O A D 2

( U N S E N S E D )

Wiring Diagram for PowerKey with an Auxiliary Device

B r e a k e r P a n e l

G R O U N D

H O T ( 1 1 0 V A C )

N E U T R A L ( 1 1 0 V A C )

C o n t r o l l e d L o a d 1

( S E N S E D )

G R O U N D L U G

G R O U N D

L I N E 1

L O A D 1

P o w e r K e y A C

G r o u n d L u g
B l a c k
W h i t e

R e d
R e d

B l u e

B l u e

Wiring Diagram for PowerKey without an Auxiliary Device

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