27
5.
Operation
Terminal and wiring types are suitable for power supply and charger
applications in harsh environment. Factory setting is at power supply
mode. For charger mode, please refer to 5.10.
NOTE: Only 55V model has charger mode
Harness connector type is suitable for cell site applications. There are
three outputs with different current capacity at DC end, which can be
connected to antennae with different power rating, such as 3G -5G. In
addition, the DC end also supports battery back-up input so that the
HEP-2300 can continue operating without interruption even if the
grid power is lost, improving the reliability of the system.
NOTE: a. The three DC outputs are connected together internally, so,
one of them in over current condition will cause the whole
unit
. It is suggested to add current limiting
shutting down
equipment at each output to prevent system fail.
b. Please set the unit at charger mode when battery back-up is
connected. Please refer to 5.10.
c. Please make sure the battery back-up is within the voltage
range of the system before connecting.
5.1
Function Difference
5.2
Application Examples of Different Output Forms
5.2.1
Terminal and wiring
5.2.2
Harness connector (only 55V model)
Terminal
Terminal
Wiring
Wiring
Harness
55V
115V/230V/380V
Charger function
PV/PC
PMBus
CANBus
Modbus RTU
LED indicator
Remote ON/OFF
Temperature
compensation
12V/0.5A AUX
DC-OK signal
AC-Fail signal
OTP signal
BLK
BLK
BLK
BLK
BLK
PM
PM
PM
PM
PM
CAN
CAN
MOD
5
28
5.3
Inrush Current Limiting
5.
4
(PFC)
Power Factor Correction
5.
5
Output Voltage Adjustment
●
Built-in AC inrush current limiting circuit.
●
Since the inrush current limiting circuit mainly consists of a NTC
thermistor and a relay, inrush current will be much higher than the
specified value if the thermistor in AC side is not allowed sufficient
time to cool down. After turning off the supply, a 10 second cool
down period is recommended before turning on again.
●
Built-in active power factor correction (PFC) function, power factor
(PF) will be 0.95 or better at full load condition. PF will be less than
0.95 if it is not at full load condition.
●
Output voltage can be adjusted via SVR, PV or communication
interface.
Output voltage can be adjusted via the SVR of the panel. Please refer to
the diagram below for the location. After voltage setting, please reinstall
the waterproof plug back to ensure waterproof performance.
5. .1
5
SVR
Figure
5 1
-
SVR
DC
AC Input
DC Output
Lithium iron/
lead acid
batteries
HEP-2300-55H
DC loads
AC
3G
4G
5G
3
1
2
Max. 20A
AC Input
1
2
Max. 50A
Battery Charger
3
3
1
2
1
1
2
2
Max. 20A
Max. 20A
Output 1
Output 2
Max. 50A
Output 3
5