Meanwell GC120 User manual

GC120
Instruction Manual

GC120 Instruction Manual
1
PIN NO.
1,4
2,3
DC output connector (standard)
AD1 (optional)
R7B
(KYCON KPP-4S or equivalent)
OUTPUT
+V
-V
2
3
1
4
DC output connector (optional)
[ housing: Anderson 1327FP(red), 1327G6FP(black)
contacts: Anderson 261G2 (45A) or equivalent ]
AD1
Red(+V) Black(-V)
Assembly Procedure:
1.Make sure the charger is shut off and choosing suitable wires to connect the charger and batteries based on the rating of charging
current. The polarity must be correct: charger output (+) should be connected to the (+) terminal of batteries and charger output (-)
should be connected to the (-) terminal.
In no times should the (+) and (-) be short together or the charger and batteries will be damaged.
2.Connect the AC input and check whether the operation of LED is correct.
(red : charging ; green : battery is full)
Notes On Operation:
1.The charger should be assembled in the place with good ventilation and low moisture.
Exposure to the rain or snow is strictly prohibited.
2.Wires connecting between the charger and batteries should be as short as possible since the high voltage drop on the wires will
increase the time required to fully charge the batteries.
3.The charger is suitable for lead-acid batteries (flooded, Gel and AGM) and Li-ion batteries (lithium iron and lithium manganese).
Make sure the charging voltage and charging current are suitable for the batteries you are using. Modification for charger
specification may be required for different battery specification. Please contact battery vendor and MEAN WELL for details.
4.If the batteries need to connect in series for charging, old batteries are not suggested to be used with new ones or the lifetime of
batteries may reduce because of the unbalance charging voltage distribution on new and old batteries.
5.Please turn off the charger before connecting or disconnecting the wires.
6.The charger has a 2-year worldwide warranty, however, damages from misusing the charger will not be included in the coverage of
warranty.
WARNING : Please make sure the polarity of the battery is connected correctly!
AC FG
-V connected to AC FG
R7B : UL2464 18AWGx4C 1200±50mm
AD1 : SJTW 18AWGx2C 1200±50mm
R7B (standard)
1
2
4
3
POWER LED

2
Status Under General Operation:
At the beginning stage of operation, the charger provides the largest current with 13.6Vdc of output voltage (for 12V batteries) to
charge batteries. The LED indicator will lighten in red. After a period of time (probably a couple of hours, based on the capacity of
batteries), the charging current will decrease gradually. After reaching 10% of its maximum value, the charger will go into "floating-
charge" stage. The LED indicator will turn to green. The relationship between charging current and charging voltage for each operation
stage are shown in the curves below :
Charging Current And Ambient Temperature
LOAD (%)
EXTERNAL CASE TEMPERATURE (℃)
TIME
V
100%
10%
Constant Voltage Area
Stage 2
Float Charging I
(V,I)
Constant Current Area
Fast Charging
Stage 1
Red Green
Color of LED
■
■
■
■
Suggested Battery Capacity:
1. It will not have any problem if the capacity of batteries larger than the suggested value. It just takes more time to make the batteries
2.If you have any question about the suitable charging current for the batteries, please refer to the technical data provided by the
fully charged!
battery manufacturers or consult the vendor of the batteries.
Notes On Failure Elimination
Status
No output
voltage
Possible Reasons
Repair required. Please
send it back to us or any
of our distributors
Wrong polarity of the battery
connection
Ways to Eliminate
Model
GC120A12 40-100Ah
GC120A24 20-65Ah
GC120A48
Suitable for lead-acid batteries (flooded, Gel and AGM) and li-ion batteries (lithium iron and lithium manganese)
10-35Ah
Suggested Battery capacity
If you still cannot eliminate the failure situation, please consult
Can't achieve
the FLOAT
(green light)
stage after
long period
of charging
operation
Replace the batteriesBatteries are aging or broken
MEAN WELL or any of our distributors
-10 2010 30 40
20
40
80
60
100
605045 70
50
230VAC
100VAC
(HORIZONTAL)

3
IMPORTANT SAFETY INSTRUCTIONS - SAVE THESE INSTRUCTIONS
DANGER - TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK.
CAREFULLY FOLLOW THESE INSTRUCTIONS.
1.This manual contains important safety and operating instructions for battery charger Models GC120A12,GC120A24 and GC120A48.
2. - SAVE THESE INSTRUCTIONS This manual contains important safety and operating Instructions for battery charger Models
GC120A12, GC120A24 and GC120A48.
3.Before using battery charger, read all instructions and cautionary markings on battery charger, battery, and product using battery.
4.CAUTION - To reduce risk of injury, charge only one, 12V Lead-Acid type rechargeable battery for Model GC120A12; charge
only two, 12V Lead-Acid type rechargeable batteries, which were connected in series, for Model GC120A24; charge only four, 12V
Lead-Acid type rechargeable batteries, which were connected in series, for Model GC120A48.
5.Power Supply Cord:
Power Supply Cord - Cord Type SJT or SVT, rated minimum 105 , No. 18AWG/3C,provided with a molded-on, grounding type ℃
attachment plug with a 15A, 125V(NEMA 5-15p) configuration and a molded-on connector which mates with the appliance inlet,
minimum 1.8m and maximum 3m in length.
6.The equipment was investigated under 20 amperes branch circuit in accordance with the National Electrical Code, ANSI/NFPA 70, to
reduce the risk of fire, connect only a circuit provided with 20 amperes maximum branch over current protection.