Progressive Industries, Inc.
Electrical Management System
Operating Instructions for:
Model EMS-PT50C
Rated at 120V/50A
Manufactured by:
Progressive Industries, Inc.
414B Airport Boulevard
Morrisville, NC 27560
(919) 462-8280
www.progressiveindustries.net
Proudly manufactured i n t he U.S.A.
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
indictor flashes 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 is a 136-second (02:16) time delay.
5 Mode Surge Protection
This feature provides full surge protection L-N, L-N, L-G, L-L and NG. Total Joule
rating is 3,580, 88,000A surge current. Response time of <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 display error code will read E-10. This indicates the
EMS needs to be serviced.
Reverse Polarity Protection
If AC power is a reverse polarity condition, the EMS will not allow power to the RV
and the error code will read E1.
Open Neutral Protection
If AC power has an open neutral condition, 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 E2 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 E7 will be displayed when the
frequency is high; and an Error Code of E8 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
off power instantly. The display will read the voltage and E-3 for the error. (NEVER
BYPASS THE EMS WHEN THIS OCCURS.)
Display
Continuously scrolls all of the AC power information, including voltage, current,
frequency, error codes and previous errors. Each reading is displayed for two (2)
seconds.
Previous Error Code
This feature tells the user what the previous error was and why power was interrupted
to the RV. To read a Previous Error Code, put a “P” in front of the “E” code. This is
only displayed if an actual error occurs. The error is deleted when power is
disconnected from the EMS.
Weather Resistant
Can be exposed to the elements, however, may not be submerged.
Microprocessor Controll ed
The computer is driven by a state-of-the art microprocessor that is programmed with
software to drive the entire EMS.
Built-in Lock Bracke t
Allows the user to secure the EMS to power source to prevent theft.
Features
Warnings
Do not exceed the rating on the EMS for any reason,
•
however, these devices are designed to be reduced down to
120V/15A, and still maintain full protection.
• Do not modify the EMS in any way, this will void the
warranty, compromise protection, and could result in
possible shock, and/or a fire hazard.
• It is important to always check the pedestal power outlet for
charring; this condition means that the AC receptacle is
providing a weak connection. DO NOT USE! It could
result in possible melting of the RV power plug.
•
When running extension cords from the RV to AC power,
always use a 6-gauge cable for your 240V, 50 Amp system.
Make sure that the cable is rated for outdoor use to reduce
the risk of electric shock. Small gauge cable will have a
higher resistance and will result in a voltage loss, plus it
may result in an electrical fire.
Whenever servicing or installing the EMS or any other AC
•
powered device, make sure AC power is disconnected.
RV wiring is different than the wiring found in homes; the
•
neutral and ground conductors are isolated in the RV,
unlike in a home where they are tied together at the service
panel. The reason is: homes have a bonded ground
system, whereas RV’s do not. Therefore, never bond the
neutral and ground together for any reason. This will
create a ground fault condition, and may result in electric
shock and/or a fire hazard.
• Never plug the EMS into an inverter.
Operating Instructions
1. Plug into AC power.
2. Digital display will read 888 for one second then begin
scrolling the voltage, amps, line frequency, and error
code(s). In addition, the time delay light will flash in
the bottom right corner of the display.
3. The EMS will read L-1, and then give you a 3-digit
number which is your line voltage. Next, it will give
you an “OA” reading. This is the amp reading;
however, it will read zero until the time delay is
complete. Then you will notice a number between 0
and 35. That number indicates how many amps the RV
is drawing. Next, the display will read L-2 and indicate
the voltage and amps for Line 2. Then it will read 60H
and this number should remain fairly consistent;
however, it may read plus or minus one or two. Lastly,
you will notice the E code. E-0 is normal. Only when
an E-0 and E-10 is present will the delay light flash and
ultimately bring power in to the RV. Refer to your
Error Code Chart that is provided or see next page for
details.
4. Verify that Error Code E-0 is displayed.
5. Set up is complete.
6. The EMS has a 136-second time delay before you will
receive power into your RV.
IMPORTANT: The display will only read voltages between
78 volts and 255 volts.
Note: If the wiring reads anything different than correct, the
EMS will not turn on and we recommend moving to a different
source of AC power, or you 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.
Error Code Chart
E-0 Normal Condition
E-1 Reverse Polarity Condition (hot and neutral wires
Reversed)
E-2 Open Ground (means no ground wire connection)
E-3 Line 1 Voltage High (Line 1 voltage above 132 volts)
E-4 Line 1 Voltage Low (Line 1 voltage below 104 volts)
E-5 Line 2 Voltage High (Line 2 voltage above 132 volts)
E-6 Line 2 Voltage Low (Line 2 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-10 Replace surge protector mode
Note: If the EMS cut s th e power to th e R V, it will sh ow a PE
code following the E code. This denotes a 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 E0 but the PE code reads PE4 which tells
the user that low voltage was the reason for the EMS
previously cutting the 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
In order for the on-call Technician to troubleshoot the
problem(s) you are experiencing and render the best possible
solution, it is necessary that 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 1-8, the device
will interrupt the power. See Error Chart for definition of
AC power problem. The device being off 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 E0, and
yet no power is present in the coach, please contact
Technical Support. You must wait 136 seconds for the
time delay light to stop flashing.
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 you to be at the RV when you
place your call.
Progressive Industries Warr an t y
Progressive Industries warrants its products are free from defects in materials and
workmanship for the life of the unit. This is in lieu of all other warranties,
obligations or liabilities expressed by the company. In the event that a properly
installed EMS proves defective under normal use, Progressive Industries will repair
or replace the device at its discretion.
For Technical Support, please call (919) 462-8280. In order for the on-call
Technician to troubleshoot the problem(s) you are experiencing and render the best
possible solution, it is necessary that you be at your RV when you place your call.
Once Technical Support has properly diagnosed the problem, if any, arrangements
will be made to repair the unit.
Considering the PT-50C is exposed to the elements, it is necessary that the unit be
returned to the factory for any required repairs in order that the unit be sealed to
maintain weatherproofing.
The address below is strictly a mailing address. Please do not attempt to visit this
facility during business hours, as the company is not staffed, nor equipped, to handle
on-site repair work. All returns must be routed through Technical Support.
Progressive Industries , Inc.
414B Airport Boulevard
Morrisville, North Carolina 27560
The unit being returned must be properly packaged with the postage paid and
include the following information:
1) Date of purchase
2) A detailed explanation of the problem/defect.
3) Your name
4) Return address and phone number
Progressive Industries cannot assume responsibility for acts of God, alterations,
shipping/handling, or any other factors not under the control of Progressive Industries.
Progressive Industries has no responsibility for installation, personal injury, property
damage, incidental, contingent or consequential damages of any kind resulting from
defects, or failure of the unit to function.
The remedy for breach of this warranty is limited to the repair or replacement of the
defective product at Progressive Industries’ option. In no case shall the liability
prescribed by law exceed the purchase price. Some states do not allow exclusion or
limitation of incidental or consequential damages or allow disclaimers, modifications or
limitations on how long a warranty lasts; therefore, the above warranties may not apply to
you. This warranty gives you certain legal rights and you may have other rights, which
may vary from state to state.
(Revision E)
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