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INSTRUCTION MANUAL:
ELECTRICAL MANAGEMENT SYSTEM (EMS)
Operating Instructions
DO NOT plug your RV power cord into the receptacle of the EMS unit at this time.
1) Be sure that power is disconnected at the AC power source. Plug the EMS unit into
the appropriate receptacle.
2) Re-apply power to the AC power source and monitor the EMS display. Once power
is applied, the display will flash 888 as a check that all segments of the display are
working and then the display will start scrolling through the voltage, current, line
frequency measurements and any error code(s) (
E 1
through
E 10
) that may be
present. If there are no error codes, the AC power source is correctly wired and the
voltage is within acceptable limits. If an error code is displayed, disconnect the EMS
and report the error detected to the park manager or a qualified technician.
3) If error code displayed is
E 0
, the AC power source is safe to use. Before you plug
your RV cord into the EMS unit, disconnect the power at the AC power source.
Once the power at the AC power source is disconnected, plug the cable from your
RV into the EMS receptacle. Verify that the plug connection between the AC power
source, the EMS unit, and the RV cable are secure and fully inserted.
4) Re-apply power to the AC power source and verify that there are still no error
codes other than
E 0
displayed. If no error codes are present the 2 minute 16
seconds (136 seconds) timer will be activated. During this time, the delay indicator
located in the bottom right corner of the display will flash. Once the timer has
expired, power will pass through the EMS unit to the RV. Note that if there is an
error code other tan
E 0
or
E 10
, the 2 minute 16 seconds (136 seconds) timer will
not start and the time delay indicator will not blink.
5) The EMS display will indicate multiple electrical characteristics. Examples of these
characteristics are listed below:
NOTE: If the display indicates an error code other than
E 0
or
E 10
, the EMS will not
allow power to the RV.
EMS-PT50X
L-1 – Line 1 Characteristics
120 – Line 1 Voltage
7A – Line 1 Amperage
L-2 – Line 2 Characteristics
118 – Line 2 Voltage
5A – Line 2 Amperage
60H – Frequency
E0 – Error Code = 0 (Normal operation)
PE3 – Previous Error Code = E3
(This error has been corrected)
EMS-PT30X
120 – Voltage
7A – Amperage
60H – Frequency
E0 – Error Code = 0 (Normal operation)
PE3 – Previous Error Code = E3
(This error has been corrected)
