Progressive Industries EMS-LCHW50 Manuel utilisateur

Electrical Management System (EMS)

EMS-LCHW30 & EMS-LCHW50

Instruction Manual

EMS-LCHW50

EMS-LCHW30

!CAUTION These instructions are intended to provide assistance with the installation

of this product, and are not a substitute for a more comprehensive understanding

of electrical systems. We strongly recommend that a certied electrician perform the

installation of this product. Improper installation may void warranty.

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INSTRUCTION MANUAL: ELECTRICAL MANAGEMENT SYSTEM (EMS)

Features

• High/Low Voltage Protection: Whenever AC power falls below 104 volts, or rises

above 132 volts, the EMS automatically shuts down power to the RV. The EMS will

monitor the power and once the AC power rises above 104 volts, or drops below

the 132 volt level the time delay indicator ashes for the preset time and then

automatically restores power to the RV.

• Time Delay for A/C Compressor: If AC power is interrupted or the EMS detects a

fault condition, the built in time delay is activated. There are two settings on the

EMS: one is 136 seconds (02:16), and the other is 15 seconds. Consult your air

conditioner manual to see if it has a time delay built in. If so, use the 15 second

delay, if not, use the 136-second delay. The factory setting is 15 seconds.

• 3-Mode Surge Protection (EMS-LCHW30): This feature provides full surge

protection L-N, L-G, and N-G. Total Joule rating is 1,790J and 44,000A surge current.

Response time <1 Nano second.

• 5-Mode Surge Protection (EMS-LCHW50): This feature provides full surge

protection L-N, L-N, L-G, L-L, and N-G. Joule rating is 3,580J and 88,000A surge

current. Response time <1 Nano second.

• Surge Indicator: In the event of a power surge and the surge protector circuit

is damaged within the EMS-L-N or L-G the digital error code will read E 10. This

indicates the EMS needs to be serviced.

• Reverse Polarity Protection: If AC power has a reverse polarity condition, the EMS

will not allow power to the RV and the error code will read E 1.

• Open Neutral Protection: If AC power has an open neutral, the display will not light

and the EMS will not allow power to the RV.

• Open Ground Protection: If AC power has an open ground condition, the EMS will

read an error code of E 2, and power will not be allowed to the RV.

• AC Frequency Protection: If AC power frequency deviates plus/minus 9 hertz from

60 cycles per second, the EMS will shut down AC power. An Error code of E 7 will

be displayed when the frequency is high; and an Error code of E 8 will be displayed

when frequency is low.

• Accidental 240V Protection: If 240 volts is detected when plugging into AC power

the EMS will NOT allow power to the RV. If this condition occurs while power is

applied to the RV, the EMS shuts o power instantly. The display will read the

voltage and E 3 for the error. NEVER BYPASS THE EMS WHEN THIS OCCURS.

• Display: Continuously scrolls the AC power information, including voltage,

current, frequency, error codes and previous errors. Each reading is displayed

for two (2) seconds.

• Previous Error Code: Previous error code (PE) indicates what error occurred

and why power was interrupted. To delete code, disconnect power from EMS.

• ByPass: This switch is located on the remote display and allows the user to

bypass the EMS in the event of failure, thus allowing AC power into the RV.

This does not disable the surge protection portion of the EMS; however, all

other features are disabled.

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INSTRUCTION MANUAL: ELECTRICAL MANAGEMENT SYSTEM (EMS)

• Modular Design: Replacement parts are designed for simple plug-and-play making

repairs extremely user friendly.

• Microprocessor Controlled: The computer and remote display are driven by state-

of-the-art microprocessors that are programmed with software to drive the entire

EMS unit.

Warnings

• RV wiring is dierent than house wiring; in an RV, neutral and ground conductors

are isolated whereas in a house they are bonded at the service panel. Therefore;

never connect neutral and ground. The result will cause a ground fault condition,

electric shock, and/or a re hazard. This does not stop you from using a

“generator plug” that ties together neutral and ground as this is perfectly safe.

• Do not exceed the rating on the EMS for any reason. These devices are designed

to be reduced down to 120V/15A and maintain full protection.

• Do not modify the EMS in any way as this will void the warranty, compromise

protection and could result in possible shock, and/or a re hazard.

• It is important to always check the pedestal power outlet for charring; this

condition means the AC receptacle is providing a weak connection. Should this

condition exists, DO NOT USE as it could result in possible melting of the RV

power plug.

• Progressive Industries recommends you have a certied electrician perform the

installation of the EMS unit.

• All AC power extension cords in conjunction with your EMS unit should be rated

10 gauge for 120V, 30A systems or 6 gauge for 240V, 50A systems and rated for

outdoor use to reduce the risk of electrical shock. We recommend the length not

to exceed 20-25’. Small gauge cable will have a higher resistance and can result in

voltage loss or an electrical re.

• Whenever servicing or installing the EMS, or any other AC powered device, make

sure AC power is disconnected.

• Never solder the ends of the wires you attach during installation, this includes

any red, black and/or white wires.

• Never plug the EMS into an inverter.

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INSTRUCTION MANUAL: ELECTRICAL MANAGEMENT SYSTEM (EMS)

1) Unplug RV from AC power and be sure generator is o.

2) Determine a location for the EMS control box.

3) Cut the RV power cord about three (3) inches greater than the distance from the

junction box to the desired location of the EMS control box. Then strip back the

outer insulation three (3) inches on input, and three (3) inches on output cable.

See visual references on page 9.

4) Strip back each conductor 3/8" on both stripped ends and attach ring terminals to

green ground wires. If this wire is a solid wire, do not use ring terminals. Loop the

wire around the ground screw.

5) Remove the lid from the EMS. Inside the unit will be a display, cable and pack of

screws. Back o the six set screws from top of contactor (L1, L2, etc.).

6) Take your long cable with the plug end and connect it to the input side by sliding

through the wire restraint on the end of the EMS control box. Next connect the

wires to the contactor by attaching black to L1, white to L2, red to L3, and green

to ground screw on side of box. Torque down set screws and ground nut to

secure connections.

7) Take the short cable coming from the junction box by sliding it through the wire

restraint output side of the EMS control box. Next slide the black wire through the

current sensor containing the green mark and connect to T1, then connect the

white wire to T2. Next slide the red wire through the other sensor and attach to T3.

The current sensor(s) can be oriented in either direction. Attach the green ground

wire to the ground screw on side of box. Make sure the wire colors adjacent

to each other match up. Torque down set screws and ground nut to secure

connections.

8) Double check all connections and make sure they are secure.

9) Remove the two screws on contactor where marked L1, L2, etc. Next remove the

top plastic plate with markings. Examine inside ensuring there are no loose plastic

pieces inside the contactor. If so, remove and re-install cover with two screws. See

visual references on page 9.

!CAUTION If you break o a tab and do not remove it, this may stop the contactor

from working and allow 240 volts in the RV.

Visual Photo Library - LCHW50C: page 9 | LCHW30C: page 10

Wiring Diagram - LCHW50C: page 11 | LCHW30C: page 11

For installation, in addition to the EMS Kit, you will need:

• 6 mounting screws

• In some cases you will need a jumper cable, length to be

determined based on the placement of the EMS.

• Always use #10 wire for the LCHW30C & #6 wire for the LCHW50C.

Installation Instructions Before Transfer Box

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INSTRUCTION MANUAL: ELECTRICAL MANAGEMENT SYSTEM (EMS)

10) Secure cable ends by tightening down strain reliefs ove the input and output wires.

Do not over tighten as this could cut through the insulation and cause a short.

11) Set time delay jumper on the circuit board. The factory setting is for 15 seconds.

Remove jumper to set for 136 seconds (02:16). See Features Section on time delay

to determine which to use.

12) Plug in remote display and cable. (This cable is not a phone cable, but rather a data

cable). NEVER PLUG IN DISPLAY WHILE RV POWER IS ON.

13) Attach EMS lid with the six black machine screws provided.

14) Mount the EMS control box.

15) Installation is complete. Next, plug in and follow operating instructions.

Visual Photo Library - LCHW50C: page 9 | LCHW30C: page 10

Wiring Diagram - LCHW50C: page 11 | LCHW30C: page 11

For installation, in addition to the EMS Kit, you will need:

• 4 mounting screws

• In some cases you will need a jumper cable, length to be determined

based on the placement of the EMS.

• Always use #10 wire for LCHW30 models and #6 wire for LCHW50 models.

• Surge & Electrical Protection units are for Recreational Vehicles (RV) only.

1) Unplug RV from the AC power and be sure generator is o.

2) Locate transfer switch box; determine where the EMS control box will be mounted.

3) Measure the distance between the transfer switch and the control box and add one

(1) foot. This is the length of cable that will be required for the installation. Make

sure 6 gauge, 4 conductor cables are used.

4) Remove lid from transfer box, disconnect and remove the output cable.

5) Take jumper cable and strip back one end three (3) inches and the other end the

same as the end removed from the transfer box. The cable removed from the

transfer box must have at least three (3) inches of the outer insulation removed.

See visual references on page 9.

6) Strip back all conductors 3/8" and attach ring terminals to green ground wires (see

visual references on page 9). If this wire is solid wire, do not use ring terminals.

Loop the wire around the screw.

7) Remove the lid from unit. Inside the unit will be a digital display, cable and pack of

screws. Back o the six set screws from top of contactor (L1, L2, etc.).

Installation After Transfer Box for Protection

from both Generator and AC Power

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INSTRUCTION MANUAL: ELECTRICAL MANAGEMENT SYSTEM (EMS)

8) Take the jumper cable and connect it to the input side by sliding through the wire

restraint on the end of the EMS control box and then connect the black wire to L1;

white to L2; red to L3, green to ground screw. See visual references on page 9.

Torque down set screws and ground nut to secure connections.

9) The cable that came from the transfer box connects to the output side of the EMS

control box in the same manner. Next slide the black wire through the current

sensor containing the green mark and connect to T1 and then connect the white

wire to T2. Now slide the red wire through the other current sensor and attach to

T3. The current sensor(s) can be oriented in either direction. Next, attach the green

ground wire to the ground screw on the side of box (see visual references on page

9). Make sure the conductor’s colors match up across from each other. Torque

down the set screws and ground nut to secure connections.

10) Connect the loose end of the jumper cable to the transfer switch. See wiring

diagram on transfer switch if needed.

11) Double check all connections to ensure they are secure.

12) Secure cable ends by tightening down strain reliefs over the input and output

wires. Do not over tighten as this could bite through insulation and cause a short.

13) Set time delay jumper on the circuit board. Factory setting is for 15 seconds.

Remove jumper to change setting to 136 seconds (02:16). See Features Section on

time delay to determine which to use. See visual references on page 9.

14) Plug in digital remote and data cable (this cable is not a phone cable, but rather a

data cable). NEVER PLUG IN THE DISPLAY WHILE RV POWER IS ON.

15) Attach lid with the six black machine screws provided and attach transfer switch lid.

16) Mount the EMS control box.

17) Installation is complete. Next, plug in and follow operating instructions.

Operating Instructions

1) Plug into A/C power.

2) Digital display will read 888 for one second and then begin scrolling the voltage,

amps, line frequency and error code, if any. In addition, the time delay light will

ash while the EMS is going through its countdown and will stop when the unit

engages (bottom right hand corner.) If delay light does not ash, a fault condition

is present. Refer to the Error Code Chart (page 7) to determine the problem

with the AC power.

3) You may notice when rst plugging in, the display may read E 9. This indicates the

display has not received the data from the computer yet. Do not be alarmed, this

is normal. By the next scroll through, it should read E 0 if the AC power is normal.

4) The digital display will give you a three digit number indicating your line

voltage. Next, it will give you a “0A” reading indicating current (amps). Current

(amps) will read zero until the time delay is complete (136 seconds or 15

seconds, depending on your settings). The output power will remain o until

the time delay is nished. Then you will notice a number between 0 and 50. This

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INSTRUCTION MANUAL: ELECTRICAL MANAGEMENT SYSTEM (EMS)

number indicates how many amps the RV is drawing. Next, you will notice “60H”,

indicating your line frequency. This number should remain fairly consistent;

however, it may read plus/minus one or two. Lastly, note the E code. E 0 is normal

and only when E 0 or E 10 is present will the delay light ash and allow power to

the RV. Refer to the Error code chart card that was provided or see Error Code

Chart for additional information.

5) Verify the error code E 0 is displayed and set up is now complete.

NOTE: If the wiring reads anything dierent than correct, the EMS will not turn on and

we recommend you move to a dierent source of AC power or use your generator

power. Also, if power is below 104 volts or above 132 volts, the EMS will not turn on,

and we recommend using your generator power.

Display Code Chart

The EMS display will indicate multiple electrical characteristics. Examples of these

characteristics are listed below:

30A 50A

120 - Voltage

7A - Amperage

60H - Frequency

E0 - Error Code = 0

(Normal operation)

PE3 - Previous Error Code = E3

(This error has been corrected)

L1 - Line 1 Characteristics

120 - Line 1 Voltage

7A - Line 1 Amperage

L2 - Line 2 Characteristics

118 - Line 2 Voltage

5A - Line 2 Amperage

60H - Frequency

E0 - Error Code = 0

(Normal operation)

PE X - Previous Error Code = E3

(This error has been corrected)

NOTE: If the display indicates an error code other than E0 or E10, the EMS will not

allow power to the RV.

Error Code Chart

E 0 - Normal Operating Condition

E 1 - Reverse Polarity (hot and neutral wires reversed)

E 2 - Open Ground (no ground wire connection)

E 3 - Line 1 High Voltage (line voltage above 132V)

E 4 - Line 1 Low Voltage (line voltage below 104V)

E 5*- Line 2 Voltage High (line voltage above 132)

E 6*- Line 2 Voltage Low (line voltage below 104 volts)

E 7 - Line Frequency High (line frequency above 69 cycles per second)

E 8 - Line Frequency Low (line frequency below 51 cycles per second)

E 9 - Data Link Down (call technical support)

E10 - Replace Surge Protector Module (call technical support)

* Codes only apply to EMS-LCHW50 models

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INSTRUCTION MANUAL: ELECTRICAL MANAGEMENT SYSTEM (EMS)

Note: If the EMS cuts the power to the RV it will show a PE code following the E code.

This denotes the previous error or why the EMS shut down. Example: The EMS cuts

power for low voltage on Line 1, and then the power is restored. The Error Code reads

E 0, but the PE code reads PE 4 which tells the user low voltage was the reason for

the EMS previously cutting power. This PE error code will be deleted when power is

disconnected from the EMS.

Accidental 240 volt Protection: Should this condition occur, the display will read 240

volts instead of displaying the voltage and the error code message will read E 3. AC

power will shut down instantly. DO NOT UNDER ANY CIRCUMSTANCES BYPASS THE

EMS; OTHERWISE, THIS WILL RESULT IN SEVERE DAMAGE TO THE RV.

Troubleshooting Guide

Common installation mistakes:

1) Check connections. Input is the plug side of the RV and black should be attached

to L1, white to L2. Output (going to the RV) should match up. T1 is black, T2 white.

The green ground get attached to the input and output on the side of the box.

2) Make sure the input wires are, in fact, the input wires. Connecting the output

to the input of the EMS will cause the device to malfunction.

3) If the EMS is still not functioning at this point, follow instructions below prior

to calling Progressive Industries Technical Support.

In order for the on-call Technician to help troubleshoot the problem(s) you are

experiencing and render the best possible solution, it is necessary you be at your

RV when you place your call.

1) If the display is illuminated and scrolling information, note the Error Code. If

there is an Error code of 1-9, the device will interrupt the power. See Error Chart

for denition of AC power problem. The device being o when an Error Code is

present indicates the product is working properly and protecting your coach.

2) If the display is illuminated and reading Error code E 0, and yet no power is

present in the coach, please contact Technical Support. You must wait for the

time delay light to stop ashing.

3) If the display is not illuminated and power is in the coach there is a connection

issue between the display and the main control box. Contact Technical Support.

Technical Support can only help if the above information is provided; therefore,

please do not call until this information is obtained. Again, it is necessary for your

to be at the RV when you place your call. To recap...

1) Are the connections correct?

2) What is the Error Code message being displayed?

3) Is the delay indicator ashing?

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INSTRUCTION MANUAL: ELECTRICAL MANAGEMENT SYSTEM (EMS)

Visual References

Photo Library for the EMS-LCHW50

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INSTRUCTION MANUAL: ELECTRICAL MANAGEMENT SYSTEM (EMS)

Photo Library for the EMS-LCHW30

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