Electrex Zepto D6 Installation Instructions Manual

ZEPTO D6

INSTALLATION INSTRUCTIONS

COPYRIGHT

Electrex is a trademark of Akse S.r.l. All rights reserved.
It is forbidden to duplicate, adapt, transcript this document without Akse written
authorization, except when regulated accordingly by the Copyright Laws.

WARRANTY

This product is covered by a warranty against material and manufacturing defects for
a period of 24 months period from the manufacturing date.
The warranty does not cover the defects that are due to:

• Negligent and improper use

• Failures caused by atmospheric hazards

• Acts of vandalism

• Wear out of materials

• Firmware upgrades
Akse reserves the right, at its discretion, to repair or substitute the faulty products
The warranty is not applicable to the products that will result defective in consequence
of a negligent and improper use or an operating procedure not contemplated in this
manual.

RETURN AND REPAIR FORMALITIES

Akse accepts the return of instruments for repair only when authorized in advance.
The transport costs are at customer charge.

RE-SHIPPING OF REPAIRED PRODUCT

The terms for re-shipment of repaired products are ex-works, i.e. the transport costs
are at customer charge.
Products returned as detective but found to be perfectly working by our laboratories,
will be charged a fl at fee to account for checking and testing time irrespective of the
warranty terms.

SAFETY

This instrument was manufactured and tested in compliance with IEC 61010 class 2
standards for operating voltages up to 250 VAC rms phase to neutral.
In order to maintain this condition and to ensure safe operation, the user must comply
with the indications and markings contained in the following instructions:

• When the instrument is received, before starting its installation, check that it
is intact and no damage occurred during transport.

• Before mounting, ensure that the instrument operating voltages and the
mains voltage are compatible then proceed with the installation.

• The instrument power supply needs no earth connection.

• The instrument is not equipped with a power supply fuse; a suitable external
protection fuse must be foreseen by the contractor.

!

• Maintenance and/or repair must be carried out only by qualifi ed, authorized
personnel

• If there is ever the suspicion that safe operation is no longer possible, the
instrument must be taken out of service and precautions taken againstits
accidental use.

• Operation is no longer safe when:

1) There is clearly visible damage.

2) The instrument no longer functions.

3) After lengthy storage in unfavorable conditions.

4) After serious damage occurred during transport

The instruments must be installed in respect of all the local regulations.

OPERATOR SAFETY

Warning: Failure to observe the following instructions may lead to a serious danger

of death.

• During normal operation dangerous voltages can occur on instrument terminals
and on voltage and current transformers. Energized voltage and current
transformers may generate lethal voltages. Follow carefully the standard safety
precautions while carrying out any installation or service operation.

• The terminals of the instrument must not be accessible by the user after the
installation. The user should only be allowed to access the instrument front panel
where the display is located.

• Do not use the digital outputs for protection functions nor for power limitation
functions. The instrument is suitable only for secondary protection functions.

• The instrument must be protected by a breaking device capable of interrupting both
the power supply and the measurement terminals. It must be easily reachable by
the operator and well identifi ed as instrument cut-off device.

• The instrument and its connections must be carefully protected against short­circuit.

Precautions: Failure to respect the following instructions may irreversibly damage to
the instrument.

• The instrument is equipped with PTC current limiting device but a suitable external
protection fuse should be foreseen by the contractor.

• The outputs and the options operate at low voltage level; they cannot be powered
by any unspecifi ed external voltage.

• The application of currents not compatible with the current inputs levels will
damage to the instrument.

READINGS

READINGS DISPLAYED
(The parameters available vary according to instrument confi guration)

Uf I P QSPF

L-N f I P Q S PF

L-L In P Avg Q L Avg S Avg

THD L-N THD P MD Q C Avg S MD

THD L-L I Avg Q L MD

Press to scroll readings

READINGS DISPLAYED
(The parameters available vary according to instrument confi guration)

Ea ∑ Er L ∑ Er C ∑ Es ∑

Ea ∑ E2 Er L ∑ E2 Er C ∑ E2 Es ∑ E2

CNT ∑

seconds

Press for 2

TIME ∑

LEGEND OF PARAMETERS AND SYMBOLS

L-N Phase Neutral U Voltage

L-L Phase Phase I Current

THD Total Harmonic Distortion In Neutral current

Avg Average (rolling) value P Active Power

MD Maximum Demand Q Reactive Power

L Inductive S Apparent Power

C Capacitive PF Power Factor

TIME ∑ Life Time (total) (hour/100) Ea Active Energy

Life Time (partial) (hour/100) Er Reactive Energy

TIME E2

CNT ∑ Pulse count (total) Es Apparent Energy

Pulse count (partial) f Frequency

CNT E2

MECHANICAL CHARACTERISTICS

Enclosure Self-extinguishing plastic material class V0
Protection degree IP40 on front panel, IP20 terminals side
Dimensions 105 x 90 x 58 mm (6 DIN modules)

VOLTAGE INPUT

Direct Up to 300 Vrms phase-neutral

With external PT(VT) Primary: programmable (max. 400 kV)

Power supply 230/240Vac +/- 10% 50/60Hz
Self consumption < 3VA

MODELS

PFA8611-02 ZEPTO D6 RS485 230-240V

PFA8611-12 ZEPTO D6 RS485 230-240V 1DI 2DO

Further documentation may be downloaded from our web site www.electrex.it.

This document is owned by company AKSE that reserves all rights.

I MD Q C MD

Press to change readings

CNT E2

TIME E2

or 519 Vrms phase to phase

Secondary: programmable (max. 300 V)
Overload: 900 Vrms phase to phase for 1 sec

ENERGY ANALYSER

ENERGY ANALYSER

DECLARATION OF CONFORMITY

Akse hereby declares that its range of products complies with the following directives
EMC 89/336/EEC 73/23CE 93/68 CE and complies with the following product’s
standard CEI EN 61326 – IEC 61326 CEI EN 61010 – IEC 1010.
The product has been tested in the typical wiring confi guration and with peripherals
conforming to the EMC directive and the LV directive.
Subject to modifi cation without notice. Preliminary. Edition 18-02-2008.

akse srl Via Aldo Moro, 39 42100 Reggio Emilia Italy
Tel. [phone] Fax [phone] [e-mail] www.akse.it

VAT IT 01544980350 R.E.A. 194296 Cap. Soc. Euro 85.800,00 i.v.

Voltage connection

Use cables with max cross-section of 2,5 mm
diagrams that follow.

Current connection

It is necessary to use external CTs with a primary rating adequate to the load to be metered and with a 5A or 1A secondary rating. The number of CTs to be used (1, 2 or 3)
depends upon the type of network. Connect the CT output(s) to the terminals marked I1, I2, I3 (current input) of the instrument according to the applicable diagrams that follow.
Use cables with cross-section adequate to the VA rating of the CT and to the distance to be covered. The max cross-section for the terminals is 4 mm2.

N.B. The CT secondary must always be in short circuit when not connected to the instrument in order to avoid damages and risks for the operator.
Warning: The phase relationship among voltage and current signals, the P1-P2 orientation and the S1-S2 connection of the CT(s) must be carefully respected.

All disregard of this rule or of the wiring diagram leads to severe measurement errors.

4W Star (4 wire) 3PH-4W

P1 P2
S1 S2

P1 P2
S1 S2

P1 P2
S1 S2

17 18 19 20U1 U2 U3 N

L1

L2

L3

N

2

if fl exible 4 mm2 if rigid and connect them to the terminals marked voltage input on the instrument according to the applicable

3W Delta (3 wire) 3PH-3W-2CT SINGLE PHASE 1PH-2W

P1 P2

L1

S1 S2

N

17 18 19 20U1 U2 U3 N

AUXVOLTAGE INPUT POWER

P1 P2
S1 S2

P1 P2
S1 S2

17 18 19 20U1 U2 U3 N

AUXVOLTAGE INPUT POWER

L1

L2

L3

AUXVOLTAGE INPUT POWER

BI-PHASE 2PH-2W

P1 P2

L1

S1 S2

L2

17 18 19 20U1 U2 U3 N

AUXVOLTAGE INPUT POWER

VOLTAGE AND CURRENT CONNECTION

I1 I2 I3 RS-485 AUX

S1 S2 S1 S2 S1 S2 A BT10 11 12

I1 I2 I3 RS-485 AUX

S1 S2 S1 S2 S1 S2 A BT10 11 12

POWER SUPPLY and SERIAL LINE CONNECTION CONFIGURATION SETUP

The instrument is fi tted with a separate power supply. The power supply terminals are
numbered (17) and (18). Use cables with max cross-section of 2,5 mm2 if fl exible, 4
mm2 if rigid.

I1 I2 I3 RS-485 AUX

S1 S2 S1 S2 S1 S2 A BT10 11 12

DIGITAL INPUTS AND OUTPUTS CONNECTION

20

19

Digital Inputs

Supply voltage (external): from 10 to 30

Current consumption: from 2 to 10mA

Max. count frequency 10 or 100Hz

N.B. For gas meters a galvanic separation is
needed per ATEX standards

(Applicable only to type PFA8611-12)

+

DI (-)

DI (+)

19

!

Vdc

AUX

230 ÷ 240 V ±10%

LN

FUSE
(50mA T)

17 18 19 20U1 U2 U3 N

AUXVOLTAGE INPUT POWER

Serial RS485 port

T

A

B

-

20

Digital outputs (optocoupled NPN
transistor type per DIN 43864)

12

11

10

Maximum applicable voltage: 27 Vdc

Maximum switchable current: 27 mA

DO2

DO1

Common

!

C101

AUX

IN/OUT

11212

I1 I2 I3 RS-485 AUX

S1 S2 S1 S2 S1 S2 A BT10 11 12

I1 I2 I3 RS-485 AUX

S1 S2 S1 S2 S1 S2 A BT10 11 12

The instrument is programmed with the following default values:

RS485 address
Communication

Initial Password 0000

27
9600, 8, N, 2

Type
CT
VT (PT)

OPERATING KEYS

Click Change selected fi eld

value

Click

Go to next window Back to initial entry fi eld Exits setup

2 sec

Change selected fi eld value Go to next fi eld

SETUP SEQUENCE

ENTERS INTO SET UP MODE
(Push together for 2 seconds)

REQUEST PASSWORD 0000 ... 9999

RS-485

RS485 address 1 ... 247
Speed 2400, 4800, 9600, 19200, 38400
Data Bit 7 or 8
Parity N = No parity, E = Even parity, O = Odd parity
Stop Bit 1 or 2

NETWORK

Type 3PH-3W-2CT, 3PH-4W, 2PH-2W, 1PH-2W
CT (Primary) 10000
CT (Secondary) 1 o 5
VT (Primary) 400000
VT (Secondary) 300

CLEAR TOTAL COUNTERS NO, YES

CLEAR PARTIAL COUNTERS NO, YES

CLEAR MAX DEMAND NO, YES

ENTER NEW PASSWORD 0000 ... 9999

EXIT SETUP (Push for 2 seconds)

3PH-4W
5/5
1/1

akse srl Via Aldo Moro, 39 42100 Reggio Emilia Italy
Tel. [phone] Fax [phone] [e-mail] www.akse.it

VAT IT 01544980350 R.E.A. 194296 Cap. Soc. Euro 85.800,00 i.v.