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ZL0116-0A 

Page 14 of 26 

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Installation Guide

Power Monitoring

E50B1A, E50C2A, E50C3A

TM

UI for Setup

Next

Next

From:

 SETUP > PASWD

ADDR

--------

001

BAUD

--------

38400

19200

9600

4800

2400

1200

PAR

--------

nOnE

EvEn

Odd

Set Communications Parameters:

ADDR - Modbus Address: 

1 – 247. 

  +

increments the selected (blinking) digit.

-

selects the digit to the left.

BAUD - Baud Rate: 

1200 – 38400 Baud

PAR - Parity: 

Odd, Even, None

  +

or

to step through the options.

Set Current Transducer:

CT SZ -

CT Size: in Amps. Maximum is 5000 Amps.

Set System Configuration: 

SYSTM:   +

or

to step through the following System Type options:

System Reg 130 CTs Description

3L-1n

40

3        Wye Three Phase: A,  B, & C with Neutral (Default).

3L

31

3        Delta Three Phase: A, B & C; no Neutral

2L-1n

12

2        Single Split Phase: A & B with Neutral

2L

11

1        Single Phase: A & B; no Neutral

1L-1n

10

1        Single Phase: A to Neutral

System 

Type

Current 

Transformer

S  SYS

Next

S  CT

CT SZ

--------

100

SYSTM

--------

3L-1n

  3L

  2L-1n

  2L

  1L-1n

Bac

To

 SETU

P

Back

Back

Back

S COM

To Setup p. 2 “SPLOS”

Next

S  PT

Set Potential Transfomer Ratio: 

RATIO –

 Potential transformer step down is RATIO:1. Default is 1:1 

(No PT installed). See Install for wiring diagrams. This value must be 

set before the System Voltage (if used).

Potential

Transformer

RATIO

--------

001.00

Back

S     V

Back

Sytem

Voltage

Next

Set System Voltage:

V LL –

The nominal Line to Line Voltage for the system. This is used 

by the meter to calculate the theoretical maximum system power, and 

as the reference voltage for setting the Phase Loss threshold. 

Maximum is 32000 Volts. For system type 1+N (10), this is a Line to 

Neutral Voltage, indicated by “V LN”. Note: the meter will reject settings 

that are not within the meter’s operating range when divided by the PT 

ratio. 

  V LL

--------

00600

S  PWR

Back

Sytem

Voltage

MX  KW 

--------

103.92

Next

System Power:

MX KW –

The theoretical Maximum System Power is calculated by the 

meter from the System Voltage, CT size, and System Type. Power 

Factor is assumed to be unity. The value of System Power is used to  

determine which combinations of pulse weight and duration are valid 

and will keep up with the maximum power the meter will see. This value 

is read only. 

Note: 

Bold 

is the Default.

To Setup p. 2 “SPASS”

RS-485

Output 

† When leaving this parameter screen using the right button (  ), the display will 
briefly indicate “SAvEd)” to confirm that any changes made have been accepted.

Summary of Contents for E50B1A

Page 1: ...to radio communications This device complies with part 15 of the FCC Rules Operation is subject to the following two conditions 1 This device may not cause harmful interference and 2 this device must...

Page 2: ...38400 baud Modbus RTU MECHANICAL CHARACTERISTICS Weight 0 62 lb 0 28 kg IP Degree of Protection IEC 60529 IP40 front display IP20 Meter Display Characteristics Back lit blue LCD Terminal Block Screw...

Page 3: ...TM Table of Contents Dimensions 4 Data Outputs 4 Product Diagram 5 Display Screen Diagram 5 Installation 6 Supported SystemTypes 7 Wiring Symbols 7 Wiring 8 Control Power Diagrams 9 Quick Setup Instru...

Page 4: ...figurable for CT PT ratios system type and passwords Diagnostic alerts Current 3 phase average Volts 3 phase average Current by phase Volts by phase Line Line and Line Neutral Power Real Reactive and...

Page 5: ...only CONTROL POWER 0 1A 50 60 Hz A B C N 1 2 A B C Alarm Energy NC NO S OUTPUT IA IB IC Phase Loss Alarm Pulse VA VB VC Neutral Earth Control Power Output varies by model UL 90V L N 600V L L CE 90V L...

Page 6: ...ays on standard 35 mm DIN rail or screw mounted to the interior surface of the enclosure A DINRailMounting 1 Attach the mounting clips to the underside of the housing by sliding them into the slots fr...

Page 7: ...in a particular System Type display as on the User Interface or as QNAN in the Modbus registers CTs Voltage Connections SystemType Phase Loss Measurements Wiring Diagram Number of wires Qty ID Qty ID...

Page 8: ...ions may cause injury death or equipment damage WARNING Wiring N L1 X2 X1 White Black A B C N A B C Diagram1 1 PhaseLine to Neutral2 Wire System1CT Diagram2 1 PhaseLine to Line2 Wire System1CT L1 L2 X...

Page 9: ...heControlPowerTransformermaybewiredL NorL L Outputto meetmeterinputrequirements DCControlPowerfrom125VDCto300VDC ULandCEmax FuseRecommendations Keep the fuses close to the power source obey local and...

Page 10: ...aud rate c to the PAR screen Use the or buttons to select the parity d back to the S COM screen 6 to the S CT Set Current Transducer screen If this unit does not have an RS 485 port this will be the f...

Page 11: ...arm either loss of phase when the meter is powered or loss of power when the meter is not The contacts are open when the meter is powered and no phase loss alarm conditions are present The over curren...

Page 12: ...s A Average of Active Phases Volts Line Neutral V Average of Active Phases Total Real Power P Power Factor Average of Active Phases 3 KVA Total Apparent Power S B A B VBC B KW B VLN C A C VAC C KW C V...

Page 13: ...Voltage Clipping A B C INFO MODEL OS SN RS Serial Number Reset System Operating System ALERT INFO PLOSS A b C LOWPF A b C F ERR A I OVR A b C V OVR A b C PASWD 00000 PASWD 00000 Model Number Energy Pu...

Page 14: ...3L 2L 1n 2L 1L 1n Back To SETUP Back Back Back S COM To Setup p 2 SPLOS Next S PT Set Potential Transfomer Ratio RATIO Potential transformer step down is RATIO 1 Default is 1 1 No PT installed See In...

Page 15: ...ration error bit in the Modbus Diagnostic Alert Bitmap if equipped Wh P Set Pulse Energy In Watt Hours VAR Hours if present per Pulse When moving down to a smaller energy the meter will not allow the...

Page 16: ...y the subinterval timer The default subinterval is 15 minutes at a 15 minute interval setting the buffers hold 60 days of data An external timer can be used over Modbus by setting this register to 0 U...

Page 17: ...ted power cycle etc during the previous demand sub interval and whether the Real Time Clock has been changed re initialized to default date time due to a power cycle or modified via Modbus commands Da...

Page 18: ...s 0x11 Report ID Return string byte0 address byte1 0x11 byte2 bytes following w out crc byte3 ID byte 247 byte4 status 0xFF if the operating system is used status 0x00 if the reset system is used byte...

Page 19: ...er Factor Phase B 015 R UInt Ratio 0 0001 0 10000 Power Factor Phase C 016 R UInt Volt V 0 32767 Voltage Phase A B 017 R UInt Volt V 0 32767 Voltage Phase B C 018 R UInt Volt V 0 32767 Voltage Phase A...

Page 20: ...ite no more frequently than every 10 seconds Write 16640 0x4100 to Reset Logging E50C3A only Write 16498 0x4072 to Clear Pulse Counters to 0 Read always returns 0 130 R W NV UInt 10 11 12 31 40 Single...

Page 21: ...ase should be 277V When the threshold is set to 10 if any phase drops more than 10 below 277V less than 249V or if any L L voltage drops more than 10 below 480V less than 432V the corresponding phase...

Page 22: ...gister register 144 and reset the energy accumulators see reset register 129 Bit 15 Energy pulse output configuration error present pulse energy setting may not keep up with the theoretical max system...

Page 23: ...nd register 129 Bit 1 Log Buffer Read Collision 1 Set to 1 if the meter tried to save log data while the user was reading the log Logging Page Register has been set to something other than 0 On the fi...

Page 24: ...egister Pointer 4 Default is 30 Reactive Energy LSR 173 R W NV UInt Log Register Pointer 5 Default is 37 Real Demand 174 R W NV UInt Log Register Pointer 6 Default is 38 Reactive Demand 175 R W NV UIn...

Page 25: ...l Real Power Present Demand 327 328 R Float kVAR Total Reactive Power Present Demand 329 330 R NV Float kVA Total Apparent Power Present Demand 331 332 R NV Float kW Total Real Power Max Demand 333 33...

Page 26: ...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 a...

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