CONTROLLER BOARD BOX
TERMINAL FUNCTION DEFINITIONS
TERMINAL
NUMBER
FUNCTION
DESCRIPTION
WIRING OPTIONS
NOTES
1
24 VOLT AC
24 volt AC output
2
24 VOLT AC
COMMON
24 volt AC common
This is an internal power
supply for powering external
devices & Remote
Controllers.
Chief Mfg. offers the RC-10
Radio Frequency Remote
Controller which runs off of
this power supply.
3
GROUND
Ground
4
12 VOLT DC
12 volt DC
This is an internal power
supply for powering external
devices &/or used for
initiating specific functions
(Extend/Retract 5 or Voltage
Sensor 7).
5
EXTEND/
RETRACT
Initiates movement if lift is static, or
stops movement if lift is in motion.
Direction of travel will be opposite of
last direction of travel.
Function operates on
momentary switch only.
Operating range is 5 – 30
Volts AC or DC.
6
EXTEND/
RETRACT
COMMON
Used in conjunction with
Extend/Retract when using an
external power source to initiate
movement.
To Operate using Internal Power
Source
Connect terminals 3 & 6 with
Jumper Wire. Connect Momentary
Switch to terminal 4. Connect
other line of Momentary Switch to
terminal 5.
To Operate using External Power
Source
Connect External Power Supply’s
Common to terminal 6. Connect
initiating signal to terminal 5.
NOT TO BE USED AS
GROUND FOR FUNCTION
OTHER THAN
EXTEND/RETRACT
TERMINAL 5.
7
VOLTAGE
SENSOR
When terminal senses voltage, unit
will extend.
When terminal senses cessation of
voltage, unit will retract.
Operating range is 5 – 30
Volts AC or DC.
8
VOLTAGE
SENSOR
COMMON
Used in conjunction with Voltage
Sensor when using an external power
source to initiate movement.
Voltage Sensing
Connect positive lead to terminal 7.
Connect Ground of switching
device to terminal 8.
Single-Pull/Throw Latching Switch
Connect terminals 3 & 8 with
Jumper Wire. Connect first Switch
Terminal to terminal 4.
Connect other Switch Terminal to
terminal 7.
NOT TO BE USED AS
GROUND FOR FUNCTION
OTHER THAN VOLTAGE
SENSOR TERMINAL 7.
9
SERVICE
EXTEND
Extends unit to maximum limit,
bypassing normal-use travel setting.
Often used for servicing projectors in
ceiling lifts.
Momentary or Latching contact to
Ground terminals 3, 10, 13, or 20.
Feature not available on all
models.
If using Latching Switch, be
sure to disengage Switch prior
to initiating any other
function.
10
GROUND
Ground
