IOTA IQ4 Smart Charge Controller Owner’s Manual
- June 9, 2024
- IOTA
Table of Contents
IQ4 Smart Charge Controller
Owner’s Manual
IQ4 Smart Charge Controller
The IQ4 Charge Controller offers automatic charging control for DLS Battery Chargers, providing longer and safer use of your system’s battery. The IQ4 Controller allows the DLS Charger to operate as an automatic multi-stage “smart charger’ that gives the customer the benefit of Bulk, Absorption. and Float stage charging. Three-Stage Charging increases the charging capacity of the DLS charger and decreases the charge time while insuring proper and safe battery charging and minimizing the possibility of over-charging. The 104 monitors the battery at all times If the DLS voltage remains in the Float stage for more than seven days, the IQ4 will automatically enter the Equalization stage for a predetermined time to help maintain the battery plates, and then resume float stage charging.
INSTALLATION
The IOTA 1Q4 Charge Controller installs by simply plugging the 10 cord into
the Dual Voltage jack located on the DLS (Refer to Figure A). The IOTA IQ4
circuitry is then automatically engaged. Note: the cord pro-vided is
specifically designed for use with the IOTA 104. Do not use the IOTA 104 with
any cord other than one supplied with the unit.
Location of the Dual Voltage Jack may vary depending on the DLS Model
OPERATION AND LED INDICATOR REFERENCE
The LED Indicator on the IQ4 informs the user of the DLS charging state and
the battery charge status. When first activated the IQ4 will read the number
of cells in the battery and indicate the voltage of the battery through a
number of flashes. Refer to Figure C.
LIT/FLASHING LED – After detecting the battery, the IQ4 will initiate a
Bulk Charge phase. When the IQ4 is in the Bulk Charge mode, the LED indicator
will flash rapidly (approx. 2 flashes per second). When the Bulk Charge is
complete, the IQ4 will begin the Float Charge phase and the LED will remain
lit (no flashing). Refer to Figure B for Charge Stage descriptions.
Manufacturer’s Note: New versions of the IQ use a three-color LED
invocator. New three-col-or LED IQ models can be recognized by the white
appearance of the LED indicator white OFF (original IQ LED indicators will
appear green when OFF). Refer to the specific table for your IQ model.
**LED Code Tables***
*IQ4 units w.th single color LED are not suitable for use with DLS 54V chargers. Use either the 104 54V or new 104 model with 3-color LED.
The LED indicator will remain lit or flashing when the charger is unplugged or
disconnected from the AC supply (de-energized). During this time, the IQ
continues to monitor the battery voltage. If the battery voltage drops below a
pre-determined voltage (Refer to Figure D for predetermined values), the IC)
will automatically initiate the smart-charging cycle once the AC input is re-
connected.
IRREGULAR FLASHING LED – If the LED is flashing irregularly or
intermittently, then the 10 has entered a FAULT state due to a voltage
irregularity When this occurs, the 10 must be re-set in order to resume normal
operation. Refer to the FAULT STATE instructions below for re-setting
procedures.
CHARGING STAGE DESCRIPTIONS
BULK STAGE – During this state, the charger will operate either at Full
Current output or Constant Voltage output depending on the discharged state of
the battery. A discharged battery will dictate the voltage and force the
charger info constant-current operation As the battery charges, the charger
transitions to a constant-voltage operation This BULK STAGE will continue for
either 225 minutes or until the battery voltage reaches the ‘High Trigger
value (whichever occurs first). At this point. the BULK STAGE will operate for
another 15 minutes before switching to the ABSORPTION STAGE
ABSORPTION STAGE – This state is limited to 480 minutes (8 hours) during
which the charger will operate either at Full Current output or Constant
Voltage output depending on the discharged state of the battery. During Full
Current output, the charger is providing its full current rating and will
slowly increase the battery voltage to the Absorption Stages voltage At the
end of the 480 minutes, the charger will revert to the FLOAT STAGE
FLOAT STAGE – This charge state holds the batteries at Constant Voltage
for a period not longer than seven days. Dunng this state, the charger not
only floats the batteries, but it can also provide load current up its maximum
rating for other bads without depleting the battery capacity. The FLOAT STAGE
will end when either the battery voltage drops below the tow Tngger° point or
at the end of seven days when the 104 initiates an equalization stage to
remove sulfate layers from the battery plates. In either situation, the unit
exits the FLOAT STAGE and enters the BULK STAGE
FAULT STATE – If theta enters a FAULT state, its circuitry is
automatically disabled In this state. the functionality of the 10 is
completely disabled, the LED will flash irregularly, and the charger re-verts
to a stand-alone FLOAT STATE voltage. The unit will not exit this stand-alone
FLOAT STATE. therefore the unit must be reset by following the steps below
- Unplug the charger from its AC source
- Disconnect the (+) positive cable from Me battery.
- Wait 30 seconds before reconnecting the input and output To avoid arcing, It is recommended that the charger be connected that the AC input FIRST before connecting the output of the charger to the battery.*
*Note that the connection sequence of the input and output covered above is recommended every time an operator connects the charger to the batteries. However, as long as the charger remains connected to the battery, periodic unplugging of the AC input does not require this sequence.
*IQ4
units with singe colour LED are not suitable for use with DLS 54V chargers.
Use either the IQ4 54V or new IQ4 model with 3-color LED.
88876-000 REV 2119
P. O. BOX 11846 TUCSON, AZ 85734
(520)294-3292
FAX(520)741-2837
www.iotaengineering.com
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