pro series - Zamp Solar
Specifications Subject to Change
1. Important Safety Information
1-1. General Safety Precautions
1-2. Precautions When Working with Batteries
2. Introduction
2-1. General Information
2-2. Application
2-3. Features
2-4. Ordering Information
2.5. Electrical Performance
2.5.1. Invert
2.5.2. AC Charger
2.5.3. Transfer
2.5.4. Auto frequency adjust (Optional)
2.5.5. Power saver
2.5.6. Protections
2.5.7. Remote control
2.5.8. LED Indicator & LCD
2.5.9. Audible Alarm
2.5.10. FAN Operation
2.5.11. DIP Switches
2.5.12. Output
2.5.13. Other features Socket
3 Installation
3.1 Location
3.2 DC Wiring recommendation
3.3 AC Wiring
4 Troubleshooting Guide
5 Warranty
6 Install Flange
Specifications Subject to Change
Before using the Inverter, you need to read and save the safety instructions.
1.1 General Safety Precautions
1-1-1. Do not expose the Inverter to rain, snow, spray, bilge or dust. To reduce risk of hazard, do not
cover or obstruct the ventilation openings. Do not install the Inverter in a zero-clearance compartment.
Overheating may result. Allow at least 12 inches of clearance around the inverter for air flow. Make sure
that the air can circulate freely around the unit. A minimum air flow of 145 CFM is required.
1-1-2. To avoid a risk of fire and electronic shock. Make sure that existing wiring is in good electrical
condition; and that wire size is not undersized. Do not operate the Inverter with damaged or substandard
1-1-3. This equipment contains components which can produce arcs or sparks. To prevent fire or
explosion do not install in compartments containing batteries or flammable materials or in locations
which require ignition protected equipment. This includes any space containing gasoline-powered
machinery, fuel tanks, or joints, fittings, or other connection between components of the fuel system.
Refer Warranty for instructions on obtaining service.
1-1-4. Do not disassemble the Inverter/Charger. It contains no user-serviceable parts. Attempting to
service the Inverter/Charger yourself may result in a risk of electrical shock or fire. Internal capacitors
remain charged after all power is disconnected.
1-1-5. To reduce the risk of electrical shock, disconnect both AC and DC power from the Zamp Solar
PRO Inverter/Charger before attempting any maintenance or cleaning. Turning off controls will not
reduce this risk.
CAUTION: Equipment damage
The output side of the inverter's AC wiring cannot, at no time, be connected to public power or a
generator. This condition is far worse than a short circuit. If the unit survives this condition, it will shut
down until corrections are made. Installation should ensure that the inverter's AC output is, at no time,
connected to its AC input.
Warning: Limitations On Use
1.2. Precautions When Working with Batteries
1-2-1. If battery acid contacts skin or clothing, wash immediately with soap and water. If acid enters eye,
immediately flood eye with running cold water and get medical attention immediately.
1-2-2. Never smoke or allow a spark or flame in vicinity of battery or engine.
1-2-3. Do not drop a metal tool on the battery. The resulting spark or short-circuit on the battery of other
electrical part may cause an explosion.
1-2-4. Remove personal metal items such as rings, bracelets, necklaces, and watches when working with
a lead-acid battery. A lead-acid battery produces a short-circuit current high enough to weld a ring or the
like to metal, causing a severe burn.
1-2-5. To reduce the risk of injury, charge only deep-cycle lead acid, lead antimony, lead calcium gel
cell, absorbed mat, or NiCad/NiFe type rechargeable batteries. Other types of batteries may burst, cause
personal injury and damage.
Specifications Subject to Change
2-1. General Information
Zamp Solar PRO Series Pure Sine Wave Inverter is a combination of an inverter, battery charger
and AC auto transfer switch into one complete system with a peak conversion efficiency of 88%. It is
packed with unique features and it is one of the most advanced inverter/chargers in the market at present.
It features power fact or corrected, sophisticated multi-stage charging and pure sine wave output with
unprecedentedly high surge capability to meet demanding power needs of inductive loads without
endangering the equipment.
For the regular model, when utility AC power cuts off (or falls out of acceptable range), the transfer relay
is de-energized and the load is automatically transferred to the Inverter output. Once the qualified AC
utility is restored, the relay is energized and the load is automatically reconnected to AC utility. Zamp
Solar PRO Series Inverter is equipped with a powerful charger of up to 65 Amp (depending on model).
The overload capacity is 300% of continuous output for up to 20 seconds to reliably support tools and
equipment longer. Another important feature is that the inverter can be easily customized to battery
priority via a DIP switch, this helps to extract maximum power from battery in renewable energy
systems. Thus, the PRO Series Pure Sine Wave Inverter is suitable for Renewable energy system, Utility,
RV, Marine and Emergency appliances. To get the most output power of the inverter, it must be installed,
used and maintained properly.
Please read the instructions in this manual before installing and operating.
2-2. Application
Power tools-circular saws, drills, grinders, sanders, buffers, weed and hedge trimmers, air compressors.
Office equipment - computers, printers, monitors, facsimile machines, scanners.
Household items - vacuum cleaners, fans, fluorescent and incandescent lights, shavers, sewing machines.
Kitchen appliances - coffee makers, blenders, ice markers, toasters.
Industrial equipment - metal halide lamp, high- pressure sodium lamp.
Home entertainment electronics - television, VCRs, video games, stereos, musical instruments, satellite
2-3. Features
•Professional solution for Off-Grid system
•Perfect combination of Low-voltage UPS and inverter
•Self-consumption down 50% than low frequency inverter
•Dry contact: no AC output or 0. T,O.L ,UV to other device
•Remote control RJI l/RJ45 PTM-10 and PTM-12 (optional)
•Input AC power via grid power or Generator compatibly
•Pure sine wave output input & output fully isolation
•Three-gear switches with energy saving mode
• Attractive appearance with VO plastic
• AC input to start inverter function
•Input polarity/UVP/OVP/OSP/OLP/OTP
•Network via RS232 Communicate Protocol (optional)
•DIP Switches: Output frequency, AC output range, charge current, DC/ AC priority
Specifications Subject to Change
2.4. Order information
Part Number ~ ZS-PS2000PRO & ZS-PS3000PRO
PRO Series Pure Sine wave lnverter & Charger
Power Rating
AC Voltage
Battery Voltage
Electrical Performance
2.5.1 Invert
The PRO Series inverter/charger is built-in according to the following topology.
Invert: Full Bridge Topology.
Charge: Isolate Boost Topology
Because of high efficiency Mosfets and 16bit, 4.9MHz microprocessor and heavy transformers, it outputs
PURE SINE WAVE AC with an average THD of 15% (min 5%, max 25%) depending of load connected
and battery voltage. The peak efficiency of PRO Series is 88%
Overload Capacity
The PRO series inverters have different overload capacities, making it ideal to handle demanding loads.
1. For 110% <Load<l25%(±10%), no audible alarm in 14 minutes, beeps 0.5s every Is in the 15th minute,
and Fault (Turn off) after the 15th minute.
2. For 125% <Load<l 50%(±10%), beeps 0.5s every ls and Fault (Turn off) after the I minute.
3. For 300% <Load>l50%(±10%), beeps 0.5s every ls and Fault (Turn off) after 20s.
2.5.2 AC Charger
PRO Series is equipped with an active PFC (Power Factor Corrected) multistage battery charger. The
PFC feature is used to control the amount of power used to charge the batteries in order to obtain a power
factor as close as possible to 1.
Unlike other inverters whose max charging current decreases according to the input AC voltage, PRO
series charger is able to output max current as long as input AC voltage is in the range of l64- 243VAC
(95-l 27 VAC for 120V model), and AC freq is in the range of 48-54Hz (58-64 Hz for 60 Hz model).
The PRO series inverter is with a strong charging current of up to 65 Amp (for 3KW, 12V), and the max
charge current can be adjusted from 0%-100% via a liner switch at the right of the battery type selector.
This will be helpful if you are using our powerful charger on a small capacity battery bank. Fortunately,
the liner switch can effectively reduce the max charging current to 20% of its peak. Choosing "O" in the
battery type selector will disable charging function.
Specifications Subject to Change
There are mainly 3 stages:
Bulk Charging: This is the initial stage of charging. While Bulk Charging, the charger supplies the
battery with controlled constant current. The charger will remain in Bulk charge until the Absorption
charge voltage (determined by the Battery Type selection) is achieved. Software timer will measure the
time from A/C start until the battery charger reaches 0.3V below the boost voltage, then take this time as
To and Tox IO= Ti.
Absorb Charging: This is the second charging stage and begins after the absorb voltage has been
reached. Absorb Charging provides the batteries with a constant voltage and reduces the DC charging
current in order to maintain the absorb voltage setting. In this period, the inverter will start a TI timer; the
charger will keep the boost voltage in Boost CV mode until the Ti timer has run out. Then drop the
voltage down to the float voltage. The timer has a minimum time of I hour and a maximum time of 12
Float Charging: The third charging stage occurs at the end of the Absorb Charging time. While Float
charging, the charge voltage is reduced to the float charge voltage (determined by the Battery Type
selection*). In this stage, the batteries are kept fully charged and ready if needed by the inverter. If the
A/C is reconnected or the battery voltage drops below 12V dc/24V dc, the charger will reset the cycle
above. If the charge maintains the float state for 10 days, the charger will deliberately reset the cycle to
protect the battery.
12Vdc Mode (*2 for 24Vdc; *4 for 48Vdc)
Specifications Subject to Change
The de-sulphation cycle on switch position 8 is marked in red because this is a very dangerous setting if
you do not know what you are doing. Before ever attempting to use this cycle you must clearly
understand what it does and when and how you would use it.
What causes sulphation? This can occur with infrequent use of the batteries, or if the batteries have been
left discharged so low that they will not accept a charge. This cycle is a very high voltage charge cycle
designed to try to break down the sulphated crust that is preventing the plates taking a charge and thus
allow the plates to clean up and so accept charge once again.
Charging depleted batteries
The PRO series inverter allows start up and through power with depleted batteries. For 12VDC model,
after the battery voltage goes below 10V, if the switch is still (and always) kept in "ON" position, the
inverter is always connected with battery, and the battery voltage doesn't drop below 2V, the inverter will
be able to charge the battery once qualified AC inputs are present. Before the battery voltage goes below
9VDC, the charging can be activated when the switch is turned to "Off', then to "ON". When the voltage
goes below 9VDC, and you turn the switch to OFF or disconnect the inverter from battery, the inverter
will not be able to charge the battery once again, because the CPU loses memory during this process.
Charging current for each model
40+/- 5A
65+/- 5A
The charging capacity will go to peak in around 3 seconds. This may cause a generator to drop
frequency, making inverter transfer to battery mode.
It is suggested to gradually put charging load on the generator by switching the charging switch from min
to max, together with the 15s switch delay, our inverter gives the generator enough time to spin up. This
will depend on the size of the generator and rate of charge.
2.5.3 Transfer
While in the Standby Mode, the AC input is continually monitored. Whenever AC power falls below the
VAC Trip voltage (154 VAC, default setting for 230VAC, 90VAC for 120VAC), the inverter
automatically transfers back to the Inverter Mode with minimum interruption to your appliances– as long
as the inverter is turned on. The transfer from Standby mode to Inverter mode occurs in approximately 10
milliseconds. And it is the same time from Inverter mode to Standby mode. Though it is not designed as
a computer UPS system, this transfer time is usually fast enough to keep your equipment powered up.
There is a 15-second delay from the time the inverter senses that continuously qualified AC is present at
the input terminals to when the transfer is made. This delay is built in to provide time for a generator to
spin-up to a stable voltage and avoid relay chattering. The inverter will not transfer to generator until it
has locked onto the generator's output. This delay is also designed to avoid frequent switching when
input utility is unstable.
2.5.4 Auto frequency adjust (optional)
The inverter is with Auto Frequency adjust function. The factory default configuration for
220/230/240VAC inverter is 50Hz, and 60Hz for 110/110/120VAC inverter. The output freq can be
easily changed once a qualified freq is applied to the inverter. If you want to get 60Hz from a 50Hz
inverter, just input 60Hz power, and the inverter will automatically adjust the output freq to 60Hz and
vice versa.
Specifications Subject to Change
2.5.5 Power Saver
There are 2 different working status for PRO series inverter: "ON" and "OFF". When power switch is
in" OFF" position, the inverter is powered off. When power switch is turned to either of" SAVER" or
"ON", the inverter is powered on. Power saver function is designed to conserve battery power when AC
power is not or rarely required by the loads. In this mode, the inverter pulses the AC output looking for
an AC load (i.e., electrical appliance). Whenever an AC load (greater than 25 watts) is turned on, the
inverter recognizes the need for power and automatically starts inverting and output goes to full voltage.
When there is no load (or less than 25 watts) detected, the inverter automatically goes back into search
mode to minimize energy
consumption from the battery bank. In "SAVER" mode, the inverter will draw power mainly in sensing
moments, thus the idle consumption is significantly reduced. The inverter is factory defaulted to detect
load for 250ms every 30 seconds. This cycle can be customized to 3 seconds thru SW3 on the DIP
Note: The minimum power of load to take inverter out of sleep mode (SAVER) is 25 Watts.
Zamp Solar PRO Series Power Consumption
Power Saver
3 Sec (MAX)
30 Sec (MAX)
When in the search sense mode, the green power LED will blink and the inverter will make a ticking
sound. At full output voltage, the green power LED will light steadily and the inverter will make a steady
humming sound. When the inverter is used as an "un interruptible" power supply the search sense mode
or "Saver" function should be defeated.
Some devices when scanned by the load sensor cannot be detected. Small fluorescent lights are the
most common example. (Try altering the plug polarity by turning the plug over.) Some computers and
sophisticated electronics have power supplies that do not present a load until line voltage is available.
When this occurs, each unit waits for the other to begin. To drive these loads either a small companion
load must be used to bring the inverter out of its search mode, or the inverter may be programmed to
remain at full output voltage.
2.5.6 Protections
The PRO series inverter is equipped with extensive protections against various harsh situations/faults.
These protections include:
AC Input over voltage protection/ AC Input low voltage protection
Low battery alarm/High battery alarm
Over temperature protection/Over load protection
Short Circuit protection (Is after fault)
Back feeding protection
When Over temperature /Over load occur, after the fault is cleared, the master switch has to be reset to
restart the inverter. The charge current can be selected between 50% and I 00% thru the SW I on DIP
switch. The inverter will go to Over temp protection when heat sink temp. ?, I 05°C, and go to Fault
(shutdown Output) after 30 seconds. The switch has to be reset to activate the inverter. The PRO series
Inverter has back feeding protection which avoids presenting an AC voltage on the AC input terminal in
Invert mode. After the reason for fault is cleared, the inverter has to be reset to start working.
Specifications Subject to Change
2.5.7 Remote control
Apart from the switch panel on the front of the inverter, an extra switch panel connected to the RJ45 port
at the DC side of the inverter thru a standard telephone cable can also control the operation of the
inverter. If an extra switch panel is connected to the inverter via "remote control port", together with the
panel on the inverter case, the two panels will be connected and operated in parallel. Whichever first
switches from "OFF" to "ON" or "SAVER", it will power the inverter on.
If the commands from the two panels conflict, the inverter will accept command according to the
following priority: SAVER> ON> OFF
Only when both panels are turned to "OFF" position will the inverter be powered off. The Max length of
the cable is 10 meters.
Never cut the telephone cable when the cable is attached to inverter and battery
is connected to the inverter. Even if the inverter is turned off. It will damage the
remote PCB inside if the cable is short circuited during cutting.
2.5.8 LED Indicator & LCD
Specifications Subject to Change
2.5.9 Audible Alarm
2.5.10 FAN Operation
For 2-3KW, there is one multiple controlled DC fan which starts to work according to the following
The DC fan will work while the AC fan will work once there is AC output from the inverter. So when the
inverter is in power saver mode, the AC fan will work from time to time in response to the pulse sent by
the inverter in power saver mode.
The Operation of the DC fan at the DC terminal side is controlled by the following logic:
Allow at least 12” of clearance around the inverter for air flow. Make sure that the air can circulate freely
around the unit.
Fan noise level <60db at a distance of 1 m
2.5.11 DIP Switches (optional)
On the DC end of inverter, there are 4 DIP switches which enable users to customize the performance of
the device.
Specifications Subject to Change
Low Battery Trip Volt:
For 12VDC, the Low Battery Trip Volt is set at 10.0VDC by default. It can be customized to 10.5VDC
using SW this is to prevent batteries from over-discharging while there is only a small load applied on
the inverter.
AC Input Range:
There are different acceptable AC input ranges for different kinds of loads. For some relatively sensitive
electronic devices, a narrow input range of 184-253VAC (100-135V for 120VAC) is required to protect
them. While for some resistive loads which work in a wide voltage range, the input AC range can be
customized to 154-253VAC (90-135V for 120VAC), this helps to power loads with the most AC input
power without frequent switches to the battery bank.
Load Sensing Cycle:
The inverter is factory defaulted to detect load for 250 ms in every 30 seconds. This cycle can be
customized to 3 seconds thru the SW3 on the DIP switch.
0/P Frequency Setting:
You can choose 50Hz or 60Hz output via Dip switch
AC/Battery Priority:
Our inverter is designed with AC priority by default. This means, when AC input is present, the battery
will be charged first, and the inverter will transfer the input AC to power the load. Only when the AC
input is stable for a continuous period of 15 days, the inverter will start a battery inverting cycle to
protect the battery. After 1 cycle normal charging and AC input will be restored. The AC Priority and
Battery Priority switch is SW5. When you choose battery priority, the inverter will invert from battery
despite the AC input. Only when the battery voltage reaches low voltage alarm point (10.5V for 12V),
the inverter transfers to AC Input, charges battery, and switches back to battery when battery is charged
full. This function is mainly for wind/solar systems taking utility power as back up.
2.5.12 Output Socket
The inverter is either equipped with universal socket (rated at 10 Amps) for more convenient wiring.
2.5.13 Other Features
Battery Voltage Recover Start
After low battery voltage shut off (10V for 12V), the inverter is able to restore operation after the battery
voltage recovers to 13V (with power switch still in the "On" position). This function helps to save the
users extra labor to reactivate the inverter when the low battery voltage returns to an acceptable range in
the renewable energy systems. The built-in battery charger will automatically reactivate as soon as
city/generator ac has been stable for 15 seconds.
Never leave the loads unattended, some loads (like a Heater) may cause accident
in such cases. It is better to shut everything down after low voltage trip than to
leave your load on, due to the risk of fire.
Auto Gen Start
The inverter can be customized to start up a generator when battery voltage goes low. When it goes to
low battery, the inverter will alarm and it can send a signal to start a generator, and turn the generator off
after battery charging is finished. The auto gen start feature will only work with generators designed to
work with this feature. There is an open/closed relay that will short circuit the positive and negative cable
from a generator. The input DC voltage can vary, but the Max current the relay can carry is l 6Amp.
Conformal Coating
Zamp Solar PRO series inverters have been processed with a conformal coating on the PCB making it
water, rust, and dust resistant.
Specifications Subject to Change
3.1 Location
Follow all the local regulations to install the inverter. Please install the equipment in a location that is
Dry, Clean, Cool and that has good ventilation. Working temperature: - I 0°C - 40°C
Storage temperature: - 40 - 70°C Relative Humidity: 0% - 95%, non-condensing Cooling: Forced air
3.2 DC Wiring recommendation
It is suggested the battery bank to be kept as close as possible to the inverter. The following able is a
suggested wiring option for 1 meter DC cable. Please find the following minimum wire size. In case of
DC cable longer than Im, please increase the cross section of cable to reduce the loss.
Inverter Power
DC Input Voltage
Wire Gauge
AWG 1/0
AWG 4/0
3.3 AC Wiring
We recommend using 10-5 Awg wire to connect to the ac terminal block. All the wirings are CE
compliant. Inverters should be installed by competent and qualified professional.
Specifications Subject to Change
INPUT: Just connect Utility AC or Generator etc
OUTPUT: Just connect the AC load
E/L/N: Earth/live/Null
Do not connect the Utility AC or Generator to output AC for avoiding permanently
damaging the inverter. In the instant, the spark happen when battery connected first, it is
a normal phenomenon because the capacitor is charging.
Troubleshooting contains information about how to troubleshoot possible error conditions while using
the PRO series Inverter & Charger. The following chart is designed to help you quickly pinpoint the most
common inverter failures.
Indicator and Buzzer
Specifications Subject to Change
When in inverter mode sometimes the transformer and/or case of the inverter may vibrate and make
If the noise comes from transformer:
According to the characteristics of our inverter, mainly there is one type of load which most likely may
cause rattles of transformer. That is half wave load: A load that uses only half cycle of the power. This
tends to cause an imbalance of the magnetic field of the transformer, reducing its rated working freq from
20 KHz to, say, maybe 15 KHz (it varies according to different loads). In such a case the frequency of
noise falls exactly into the range (200 Hz-20 KHz) that human ears can hear. The most common load of
such kind is a hair drier.
If the noise comes from the case:
Normally when loaded with inductive loads, the magnetic field generated by the transformer keeps
attracting or releasing the steel case at a specific freq, this may also cause noise. Reducing the load power
or using an inverter with bigger capacity will normally solve this problem. The noise will not do any
harm to the inverter or the loads.
Specifications Subject to Change
Dear Customers,
Thank you for selecting our Zamp Solar Pure Sine Wave Inverter - POWER TO EXPLORE. In order to
extend better service to you, please read our Product Information Guide carefully. Welcome to visit or call 541.728.0924 for support and service.
We offer a 1 year limited warranty:
In the warranty period, we will provide free repair and replacement of parts when the machine is
under normal use. The following cases are not covered under warranty.
DC polarity reverse. The inverter is designed without DC polarity reverse protection. A
polarity reverse may severely damage the inverter.
Wrong AC wiring
Operating in a wet environment.
Operating with an undersized generator or generator with unqualified wave form.
Change the company trademark unauthorized
Specifications Subject to Change
General Specifications
Input Wave Form
Sine Wave (Utility or Generator)
Nominal Voltage
120 VAC
Low Voltage Trip
100/90 +/- 4%
Low Voltage Re-Engage
100/90 +/- 4%
High Voltage Trip
135V +/- 4%
High Voltage Re-Engage
127V +/- 4%
Max Input AC Voltage
150 VAC
Nominal Input Frequency
50 Hz or 60 Hz (Auto Detect)
Low Freq. Trip
47 Hz or 50 Hz
High Freq. Trip
55 Hz
Output Wave Form
Bypass Mode (same as input)
Overload Protection
Circuit Breaker
Short Circuit Protection
Circuit Breaker
Transfer Switch Rating
30 Amp
Efficiency on line Trasfer Mode
Line Transfer Time
8ms Typical
Bypass Over Load Current
Inverter Specifications/Output
Output Wave Form
Pure Sine Wave or Quasi Sine Wave
Output Continuous Power (Watts)
Output Continous Power VA
Power Factor
0.1 – 1.0
Nominal Output Voltage (rms)
120 VAC
Output Voltage Regulation
+/- 5% RMS
Output Frequency
50 Hz +/- 0.3 Hz
Nominal Efficiency
Surge Ratings
Short Circuit Protection
Yes, fault after 10 Seconds
Inverter Specification/Input
Nominal Input Voltage
Minimum Start Voltage
Low Battery Alarm
Low Battery Trip
High Voltage Alarm
Power Saver
Below 25 Watts When Enabled
Power Saver
Same Switched On/Off Remote
Charger Mode Specifications
Input Voltage Range
Output Voltage
Dependent on Battery Type
Charge Current
Battery Initial Voltage for Start-up
Over Charge Protection Shutdown
Charger Curves (4 Stage Constant Current) Battery Types
4 Step Digital Controller Progressive Charge
Battery Type
Fast V
Sealed Lead Acid
Open Lead Acid
15.5 for 4 Hours
Remote Control – RJ45
Yes, Optional
Size (Inches)
2000 & 3000 Watt Inverter – 17.4” x 8.58” x 7.04”
Weight (lbs)
41.88 lbs
52.91 lbs
Specifications Subject to Change
Specifications Subject to Change
Zamp Solar LLC
63255 Jamison St.
Bend, OR 97703
Specifications Subject to Change
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF