ZL0122-0D
Page 34 of 34
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TM
E51C2A, E51C3A Installation Guide
Problem
Cause
Solution
The maintenance wrench
icon appears in the power
meter display.
There is a problem
with the inputs to the
power meter.
See the Alert sub-menu or the Diagnostic Alert Modbus Register 146
The display is blank after
applying control power
to the meter.
The meter is not
receiving adequate
power.
Verify that the meter control power are receiving the required voltage.
Verify that the heart icon is blinking.
Check the fuse.
The data displayed is
inaccurate.
Incorrect setup values
Verify the values entered for power meter setup parameters (CT and PT ratings,
system type, etc.). See the Setup section.
Incorrect voltage inputs Check power meter voltage input terminals to verify adequate voltage.
Power meter is wired
improperly.
Check all CTs and PTs to verify correct connection to the same service, CT and PT
polarity, and adequate powering. See the Wiring Diagrams section for more
information.
Cannot communicate
with power meter from
a remote personal
computer.
Power meter address is
incorrect.
Verify that the meter is correctly addressed (see Setup section).
Power meter baud rate
is incorrect.
Verify that the baud rate of the meter matches that of all other devices on its
communications link (see Setup section).
Communications
lines are improperly
connected.
Verify the power meter communications connections (see the 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
power) is incorrect
CT orientation reversed
Remove CT, reverse orientation, reconnect (qualified personnel only)
Troubleshooting
China RoHS
Compliance
Information -
Environment Friendly
Use Period (EFUP)
Table
本表格依据
SJ/T11364
的
规定编制。
O:
表示
该有害物质在该部件所有均质材料中的含量均在
GB/T 26572
规定的限量要求以下。
X:
表示
该有害物质至少在该部件的某一均质材料中的含量超出
GB/T 26572
规定的限量要求。
（企
业可在此处，根据实际情况对上表中打
的技
术原因进行进一步说明。）
This table is made according to SJ/T 11364.
O: indicates that the concentration of hazardous substance in all of the homogeneous materials for this part is below
the limit as stipulated in GB/T 26572.
X: indicates that concentration of hazardous substance in at least one of the homogeneous materials used for this part
X
O
O
O
O
O
is above the limit as stipulated in GB/T 26572
Z000057-0B
部件名称
Part Name
有害物
质
-
Hazardous Substances
铅
(Pb)
汞
(Hg)
镉
(Cd)
六价
铬
(Cr (VI))
多溴
联苯
(PBB)
多溴二苯
醚
(PBDE)
电子件
Electronic
