ZL0093-0A

EM3555

11/2011

Troubleshooting

 

 

TROUBLESHOOTING

Table 10 Troubleshooting

Problem

Cause

Solution

The maintenance wrench

There is a problem with the

See the Alert sub-menu or the Diagnostic Alert Modbus Register 146

icon appears in the power

inputs to the power meter.

 

meter display.

 

 

The display is blank after

The meter is not receiving

Verify that the meter control power is receiving the required voltage.

applying control power to

adequate power.

Verify that the heart icon is blinking.

the meter.

 

Check the fuse.

 

 

 

 

Incorrect setup values

Verify the values entered for power meter setup parameters (CT and PT

 

 

ratings, system type, etc., see Setup section).

The data displayed is

Incorrect voltage inputs

Check power meter voltage input terminals to verify adequate voltage.

inaccurate.

 

 

Power meter is wired

Check all CTs and PTs to verify correct connection to the same service,

 

 

improperly.

CT and PT polarity, and adequate powering (see Wiring Diagrams

 

 

section).

 

Power meter address is

Verify that the meter is correctly addressed (see Setup section).

 

incorrect.

 

 

 

 

 

Power meter baud rate is

Verify that the baud rate of the meter matches that of all other devices

Cannot communicate with

incorrect.

on its communications link (see Setup section).

 

 

power meter from a remote

Communications lines are

Verify the power meter communications connections (see

personal computer.

improperly connected.

Communications section).

 

 

Verify the terminating resistors are properly installed on both ends

 

 

of a chain of units. Units in the middle of a chain should not have a

 

 

terminator.

 

 

Verify the shield ground is connected between all units.

 

 

 

Sign of one phase (real

CT orientation reversed

Remove CT, reverse orientation, reconnect (qualified personnel only)

power) is incorrect

 

 

 

 

 

CHINA ROHS COMPLIANCE INFORMATION (EFUP TABLE)

 

 

 

产品中有毒有害物质或元素的名称及含量Substances

 

部件名称

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

铅 (Pb)

汞 (Hg)

镉 (Cd)

六价铬 (Cr(VI))

多溴联苯(PBB)

 

多溴二苯醚(PBDE)

 

 

 

 

 

 

 

 

电子线路板

X

O

O

O

O

 

O

 

 

 

 

 

 

 

 

O = 表示该有毒有害物质在该部件所有均质材料中的含量均在 SJ/T11363-2006 标准规定的限量要求以下. X = 表示该有毒有害物质至少在该部件的某一均质材料中的含量超出SJ/T11363-2006标准规定的限量要求.

Z000057-0A

© 2011 Schneider Electric All Rights Reserved.

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Schneider Electric EM3555 manual Troubleshooting, China Rohs Compliance Information Efup Table, Problem Cause Solution

EM3555 specifications

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