Controlled Products Systems Group 222EX43 - Manual (Page 74)

55 © 2012 Installation and Reference Manual D0119 Rev. J
Important: DC Powered Gate Operators
The on/off switch on the electric control panel of the drive unit does not disable all DC power to the operator, even if the AC power
has been disabled at its source. The large rotary switch in the DC power supply enclo
sure must be switched “off” to disconnect all
of the DC power to the unit.
The disconnect in the power supply must be “off” if the AC source power will be absent for more than one week. This avoids
slowly discharging the batteries into the battery charger. Batteries will self-discharge and therefore the DC power supply must not
be stored longer than 6 months without recharging the batteries.
Batteries contain sulfuric acid. If batteries are dropped or damaged, be cautious not to get acid in your eyes, on your skin or on
your clothing.
Be certain to observe polarity when connecting the batteries or adding accessories. Reversed polarity may result in a non-
functional operator or possibly damage a component. Red is (+) positive and black is (-) negative.
Since the electrical current under load is very high, be certain that the minimum conductor size, specified in the installation
instructions, is used for the connection between the battery pack and the operator. If the battery pack is more than 20 feet from
the operator, use a larger wire size according to the distance between the operator and the batteries.
If shorted, the batteries will generate a very high current. Observe special care when connecting the cables to the batteries that
the polarity is correct. The batteries are connected in a series circuit: Join the positive (+) terminal from one battery to the
negative (-) terminal of the next battery.
Since the operator is intended to run on batteries, control of the load is important. Easier moving gates will drain less energy from
the battery, preserving capacity for more cycles during a power failure.
HySecurity use a permanently sealed type battery which needs no maintenance over its life span. A low voltage sensing circuit
protects the batteries from damage which could be caused by over discharge. The charger automatically regulates its output to
allow high output when the battery is partially discharged. The output will automatically reduce to zero as the batteries become
fully charged.
Batteries have a finite life. As the batteries age, they will lose some of their capacity to store energy. If the total amount of back-
up capacity is critical, plan to replace the batteries after 5 years of use. Properly dispose of, or recycle, used batteries.
Batteries are rated to perform to capacity at temperatures of 77° F. Below 77° F
, their “amp hour” capacity is temporarily reduced.
For example, at freezing, the capacity is 75%, at 10 degrees Fahrenheit, the capacity is 50%. HySecurity insulates the battery
pack to guard against this loss. Do not remove any insulation, or the performance of the system may be adversely affected.
Batteries can be damaged by excessive heat which may shorten their life span. Therefore, do not paint the battery enclosure a
dark color that could cause it to absorb a lot of heat from sunlight.
DC Motors contain carbon brushes which wear over time and must be replaced. Failure to replace the brushes will result in
damage to the DC motor. Brushes should be inspected every 2 years and replaced every 5 years or 100,000 cycles. (Refer to
the Smart Touch Controller to view log). However, in high use and/or severe duty applications, changing the brushes every 2
years of operation is recommended. The replacement maintenance interval may be adjusted based on the actual observed wear
rate of the brushes. To do this, compare the length of the old brush to the replacement brush and calculate the brush life
consumption. A brush has reached its useful life when it is worn to ½ its original length.