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DIRIS A40/A41

Multifunction meters – PMD

Multi-measurement meter – dimensions 96 x 96 mm

DIRIS A41
Function
  • DIRIS A40 and A41are panel mounted measurement units which ensure the user has access to all the measurements required for successfully carrying out energy efficiency projects and ensuring the electrical distribution is monitored.
  • All this information can be analysed remotely using the VERTELIS software solution.
  • The DIRIS A41 has a CT current input for measuring the neutral current.
Advantages
Easy to use
  • Thanks to its large backlit LCD display and its multiple viewing screens with direct pushbutton access, DIRIS A4x provide clear readings and are easy to use. They directly display a number of multimeasurement and metering values : ± kWh, ± kvarh, kVAh, I, U, V, F, P, Q, S, PF, etc.
Detects wiring errors
  • An integrated test function can be utilised to detect incorrect wiring and to automatically correct CT installation errors.
Customisable
  • Thanks to the wide range of optional modules, the product can be customised or upgraded after installation.
Webserver function
  • Optional Ethernet communication modules include a Webserver function for monitoring and exploiting data remotely without additional software.
Compliant with IEC 61557-12
  • IEC 61557-12 is a high-level standard for all PMDs (Performance Monitoring Devices) that are designed to measure and monitor electrical parameters in distribution networks.
  • Compliance with IEC 61557-12 ensures a high level of equipment performance, in terms of metrology, and the mechanical and environmental aspects (EMC, temperature, etc.).
Principle diagram
Functions
Multi-measurement Metering
Currents – Active energy: + kWh
– instantaneous: I1, I2, I3, In, Isystem – Reactive energy: + kVarh
– average/maximum average: I1, I2, I3, In – Apparent power: kVAh
Voltages & frequency – Hours
– instantaneous: V1, V2, V3, U12, U23, U31, F, Vsystem, Usystem
Power
– instantaneous: 3P, ΣP, 3Q, ΣQ, 3S, ΣS
– maximum average: ΣP, ΣQ, ΣS
– predictive: (ΣP), (ΣQ), (ΣS)
Power factors
– instantaneous: 3PF, ΣPF
– average/maximum average: ΣPF
Temperatures(1)
– internal
– external via 3 PT100 sensors
Harmonic analysis Load curves(1)
Total harmonic distortion
– Active and reactive power: ΣP± ; ΣQ±
– Currents: thd I1, thd I2, thd I3, thd In – Voltages & frequency: V1, V2, V3, U12, U23, U31, F
– Phase-to-neutral voltage: thd V1, thd V2, thd V3
– Phase-to-phase voltage: thd U12, thd U23, thd U31
Individual up to level 63
– Currents: HI1, HI2, HI3, HIn
– Phase-to-neutral voltage: HV1, HV2, HV3
– Phase-to-phase voltage: HU12, HU23, HU31
Events (1)
Communications(1)
– Alarms on all electrical values – RS485 MODBUS RTU & PROFIBUS DP
– Ethernet
  (MODBUS TCP or RTU over TCP and Web server)
– Ethernet with RS485 gateway MODBUS RTU over TCP
Inputs / Outputs (1) Analogue output
– Pulse metering – 0/4- 20 mA analogue output
– Remote control/command
– Alarm report
– Pulse report
(1) Available on specific version (see the following pages).

 

Front panel

1. Backlit LCD display.
2. Direct access key for currents and test function.
3. Direct access key for voltages and frequency.
4. Direct access key for active, reactive, and apparent powers and power factor.
5. Direct access key for maximum and average current and power values.
6. Direct access key for harmonic values.
7. Direct access key for energies, hour meter and programming menu.

 

Electrical characteristics

DIRIS A40/A41
Current measurement on insulated inputs (TRMS)
Via CT primary 9 999 A
Via CT secondary 1 or 5 A
Measurement range 0 … 11 kA
Input consumption ≤ 0.1 VA
Measurement updating period 1 s
Accuracy 0.2 %
Permanent overload 6 A
Intermittent overload 10 In for 1 s
Voltage measurements (TRMS)
Direct measurement between phases 50 … 700 VAC
Direct measurement between phase and neutral 28 … 404 VAC
VT primary 500 000 VAC
VT secondary 60, 100, 110, 173, 190 VAC
Input consumption ≤  0.1 VA
Measurement updating period 1 s
Accuracy 0.2 %
Permanent overload 800 VAC
Current-voltage product
Limitation for 1A CT 10 000 000
Limitation for 5A CT 10 000 000
Power measurement
Measurement updating period 1 s
Accuracy 0.5 %
Power factor measurement
Measurement updating period 1 s
Accuracy 0.5 %
Frequency measurement
Measurement range 45 … 65 Hz
Measurement updating period 1 s
Accuracy  0.1 %
Energy accuracy
Active (according to IEC 62053-22) Class 0.5 S
Reactive (according to IEC 62053-23) Class 2
Auxiliary power supply
Alternating voltage 110 … 400 VAC
AC tolerance ± 10 %
Direct voltage 120 … 350 VDC / 12 … 48 VDC
DC tolerance ± 20 % / – 6 … + 20 %
Frequency 50 / 60 Hz
Consumption ≤ 10 VA
2 inputs / 2 outputs module: Outputs (alarms / control)
Number of relays 2(1)
Type 250 VAC – 5 A – 1150 VA
2 inputs / 2 outputs module: Phototransistor inputs
Number 2(1)
Power supply 10 … 30 VDC
Minimum signal width 10 ms
Minimum duration between 2 pulses 18 ms
Type phototransistors
Pulse output module
Number of relays 2
Type 100 VDC – 0.5 A – 10 VA
Max. number of operations ≤ 108
Analogue output module
Number of outputs 2(2)
Type insulated
Range 0 / 4 … 20 mA
Load resistance 600 Ω
Maximum current 30 mA
MODBUS communication module
Link RS485
Type 2 … 3 half duplex wires
Protocol MODBUS RTU
MODBUS® speed 4800 … 38400 bauds
PROFIBUS-DP communication module
Link SUB-D9
Protocol PROFIBUS® DP
PROFIBUS® speed 9.8 kbauds … 12 Mbauds
Ethernet communication module
Connection RJ45
Speed 10 base T / 100 base T
Protocol MODBUS TCP or MODBUS RTU over TCP
Temperature module (inputs)
Type PT100
Connection 2, 3 or 4 wires
Dynamic – 20 °C … 150 °C
Accuracy ± 1 digit
Maximum length 300 cm
Operating conditions
Operating temperature – 10 … + 55 °C
Storage temperature – 20 … + 85 °C
Relative humidity 95 %
(1) Max. 3 modules / DIRIS.
(2) Max. 2 modules / DIRIS.

 

Plug-in modules

DIRIS® A40

Pulse outputs
  • 2 configurable pulse outputs (type, weight and duration) on ± kWh, ±kvarh and kVAh.

  Communication MODBUS®
  • RS485 link with MODBUS® protocol (speed up to 38400 bauds).

PROFIBUS DP communication DIRIS A40-A41 PROFIBUS® DP communication
  • SUB-D9 link with PROFIBUS® DP protocol (speed up to 12 Mbauds).

Ethernet communication with RS485 MODBUS gateway DIRIS A40-A41 Ethernet communication
  • Ethernet connection with MODBUS TCP or MODBUS RTU over TCP protocol.
  • Embedded Webserver function(1).

Ethernet communication with RS485 MODBUS gateway DIRIS A40-A41 Ethernet communication with RS485 MODBUS gateway
  • Ethernet connection with MODBUS TCP or MODBUS RTU over TCP protocol.
  • Connection of 1 to 247 RS485 MODBUS slaves.
  • Embedded Webserver function(1).

DIRIS® A41*

Plug-in modules DIRIS® A40

Analogue outputs DIRIS A40-A41 Analogue outputs
A maximum of 2 modules may be connected, providing up to 4 analogue outputs. Per module 2 outputs assignable to:
  • 3I, In, 3V, 3U, F, ± ΣP, ± ΣQ, ΣS, ΣPFL/C, I sys, Vsys, Usys, Ppred, Q pred, Spred, T°C internal, T°C 1, T°C 2, T°C3 and to 17 VDC power supply.

2 inputs - 2 outputs DIRIS A40-A41 2 inputs – 2 outputs
A maximum of 3 modules may be connected, providing up to 6 inputs and 6 outputs. Per module 2 outputs assignable to:
– monitoring: 3I, In, 3V, 3U, F, ±ΣP, ±ΣQ, SS,ΣPFL/C, THD 3I, THD In, THD 3V, THD 3U, Ppred, Qpred, Spred, internal T°C, T°C 1, T°C2, T°C3 and hour meter,
* with a factory fitted neutral CT module. – remote control,
– timed remote control.
– 2 inputs for pulse metering.

Memory DIRIS A40-A41 Memory
  • Storing up to a maximum of 62 days of P+, P-, Q+, Q- with an internal or external synchronisation signal of 5, 8, 10, 15, 20, 30 and 60 minutes.
  • Storing of 10 hour-dated last alarms.
  • Storing of the last minimum and maximum instantaneous values for 3U, 3V, 3I, In, F, ΣP±, ΣQ±, ΣS, THD 3U, THD 3V, THD, 3U, THD, 3V, THD, 3I, THD In.
  • Storing of 3U, 3V and F average values based on synchronisation function (maximum 60 days).

Temperature DIRIS A40-A41 Temperature(2)
Temperature indication:
– internal,
– external sensor PT 100 (T°C 1),
– external sensor PT 100 (T°C 2),
– external sensor PT 100 (T°C 3),.
(1) See “Management software for DIRIS”
(2) See “external sensor PT 100”

 

 Case

DIRIS A40/A41
Type panel mounting
Dimensions W x H x D 96 x 96 x 60 mm
Case degree of protection IP 30
Front degree of protection IP 52
Display type backlit LCD display
Terminal block type fixed or plug-in
Voltage and other connection cross-section 0.2 … 2.5 mm2
Current connection cross-section 0.5 … 6 mm2
Weight 400 g

 

Accessories

Current transformers IP65 protection Panel mounting kit
for a 144 x 96 mm cut-out
Current transformers 2 IP65 protection

 

Connection

Recommendation:
– For IT earthing systems, it is recommended that the CT secondary is not connected to earth.
– When disconnecting the DIRIS, the secondary of each current transformer must be short-circuited. This operation can be carried out automatically by a SOCOMEC PTI, an accessory which is included in this catalogue. Please consult us.
– In TNC neutral systems it is recommended to use the functional earth module.
Low voltage balanced network for DIRIS A40
3/4 wires with 1 CT Single-phase Two-phase
Single-phase DIRIS A20 Two-phase DIRIS A20
Use of 1 CT reduces by 0.5% the accuracy of the phases, the current of which is worked out by vector calculation.
1. Fuses 0.5 A gG / 0.5 A class CC.  1. Fuses 0.5 A gG / 0.5 A class CC. 1. Fuses 0.5 A gG / 0.5 A class CC.
Low voltage unbalanced network for DIRIS A40
3/4 wires with 3 CTs 3 wires with 2 CTs 3 wires with 2 CTs
1. Fuses 0.5 A gG / 0.5 A class CC. Use of 2 CTs reduces by 0.5% the accuracy of Use of 2 CTs reduces by 0.5% the accuracy of
the phases, the current of which is worked out the phases, the current of which is worked out
by vector calculation. by vector calculation.
1. Fuses 0.5 A gG / 0.5 A class CC. 1. Fuses 0.5 A gG / 0.5 A class CC.
Low voltage unbalanced network for DIRIS A41
4 wires with 4 CTs
4 wires with 4 CTs DIRIS A40-41
1. Fuses 0.5 A gG / 0.5 A class CC.

 

Additional information

Communication via RS485 link Connection of voltage transformer for HV networks AC auxiliary power supply
Connection of voltage transformer for HV networks DIRIS A40-A41
1. Fuses 0.5 A gG / 0.5 A class CC.

Terminals

DIRIS A40
AUX: auxiliary power supply US
V1, V2, V3 & VN: voltage inputs S1 – S2: current inputs
DIRIS A41
Terminals DIRIS A41
AUX: auxiliary power supply US
V1, V2, V3 & VN: voltage inputs S1 – S2: current inputs
Communication module Pulse output module Analogue output module
 Analogue output module DIRIS A40
RS485 link 1 – 2: pulse output n°1 5 – 6: analogue output n°1.
R = 120 Ω: selectable internal resistance for RS485 end of line termination 3 – 4: pulse output n°2 7 – 8: analogue output n°2.
2 inputs / 2 outputs module
Memory module
Temperature module
2 inputs - 2 outputs module DIRIS A40-A41 memory module DIRIS A40-A41 temperature module DIRIS A40-A41
9 – 10: relay output n°1 17 – 18: synchronisation input Sensor 1 Sensor 2 Sensor 3
11 – 12: relay output n°2 19: red 23: red 27: red
13 – 14: opto input n°1 20: red 24: red 28: red
15 – 16: opto input n°2 21: white 25: white 29: white
22: white 26: white 30: white
Ethernet Module Ethernet Module + RS485 MODBUS gateway
Ethernet Module DIRIS A40-A41 Ethernet Module + RS485 MODBUS gateway DIRIS A40-A41

References

Basic device DIRIS A40 DIRIS A41
with CT on the neutral
Auxiliary power supply US Reference Reference
110 … 400 VAC / 120 … 350 VDC 4825 0201 4825 0202
12 … 48 VDC 4825 1201 4825 1202
Optionals
Plug-in modules (1) Reference Reference
Pulse outputs 4825 0090 4825 0090
RS485 MODBUS® communication 4825 0092 4825 0092
Analogue outputs 4825 0093 4825 0093
2 inputs / 2 outputs 4825 0094 4825 0094
Communication Sub D9 PROFIBUS®DP(2) 4825 0205 4825 0205
Memory 4825 0097 4825 0097
Embedded Webserver function (2) 4825 0203 4825 0203
Ethernet communication + RS485 MODBUS gateway 4825 0204 4825 0204
(Embedded Webserver function)(2)
Temperature inputs 4825 0206 4825 0206
(1) Ease of integration for additional functions (maximum 4 slots on A40 and 3 on A41).
(2) Dimension of the plug-in module: 2 slots.
Accessories
Description of accessories To be ordered in multiples of Reference To be ordered in multiples of Reference
IP65 protection 1 4825 0089 1 4825 0089
Panel mounting kit for a 144 x 96 mm cut-out 1 4825 0088 1 4825 0088
Fuse disconnect switches for the protection of voltage inputs (type RM) 3 poles 4 5601 0018 4 5601 0018 
Fuse disconnect switches for the protection of the auxiliary supply 6 5601 0017 6 5601 0017
(type RM) 1 pole + neutral
Fuse type gG 10×38 0.5 A 10  6012 0000 10  6012 0000
Current transformer range 1 1
Ferrite to be associated with communication modules 1 4899 0011 4899 0011
Temperature sensor PT100 – M6 screw type 1 4825 0208 1 4825 0208
Temperature sensor PT100 – M6 eyelet type 1 4825 0209 1 4825 0209
Management software for DIRIS