Super Systems 7EK 31080 User Manual

Instruction Manual

31080-0-00.p65 3/24/00, 11:58 AM1

31080 (1/8 DIN)
Controller

INDEX

MOUNTING REQUIREMENTS ........................................ 1

CONNECTIONS ............................................................... 1

PRELIMINARY HARDWARE SETTINGS ........................ 6

INSTRUMENT CONFIGURATION................................... 8

Configuration procedure .......................................... 8

RUN TIME MODE .......................................................... 16

Display function...................................................... 16

Indicators ............................................................... 16

Pushbutton functionality during

operative mode ...................................................... 16

Enable/disable the control output .......................... 17

Manual function...................................................... 17

Out 1 failure detection function .............................. 1 8

Loop break alarm function ..................................... 18

SP/SP2 selection ................................................... 18

Direct access to the set point ................................ 19

Serial link................................................................ 19

SMART function ..................................................... 19

Lamp test ............................................................... 19

RUN TIME PARAMETERS ............................................ 20

ERROR MESSAGES...................................................... 22

GENERAL INFORMATIONS .......................................... 24

MAINTENANCE.............................................................. 24

DEFAULT PARAMETERS ............................................ A.1

SECURITY CODES ....................................................... A.2

CODING ........................................................................ A.3

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OUTLINE AND CUT OUT DIMENSIONS

Fig. A1 31080

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CONNECTION DIAGRAMS

Connections are to be made with the instrument housing
installed in its proper location.

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Fig. B

MOUNTING REQUIREMENTS

These instruments are intended for permanent
installation, for indoor use only, in an electrical panel
which encloses the rear housing, exposed terminals and
wiring on the back.
Select a mounting location where the instrument is subject
to minimum vibration and the ambient temperature range
is between 0 and 50 °C.
These instruments can be mounted on a panel up to 15
mm thick with a square cutout of 45 x 92 mm .
For outline and cutout dimensions refer to Fig. 2.
The surface texture of the panel must be better than
6,3 mm.
The instrument is shipped with rubber panel gasket.
To assure the IP65 and NEMA 4 protection, insert the
panel gasket between the instrument and the panel as
shown in fig. 1.
While holding the instrument against the panel proceed as
follows:

1) insert the gasket in the instrument case;

2) insert the instrument in the panel cutout;

3) pushing the instrument against the panel, insert the

mounting bracket;

4) with a screwdriver, turn the screws with a torque

between 0.3 and 0.4 Nm.

screw

bracket

gasket

bracket

screw

panel

CONNECTIONS

A) MEASURING INPUTS
NOTE: Any external component (like zener barriers etc.)

connected between sensor and input terminals may cause
errors in measurement due to excessive and/or not
balanced line resistance or possible leakage currents.

TC INPUT

1

+
_

3

Shield

1

+
_

3

Shield

Fig. 2 THERMOCOUPLE INPUT WIRING
External resistance: 100 W max, maximum error 0.1% of

span.

Cold junction: automatic compensation from 0 to 50 °C.
Cold junction accuracy: 0.1 °C/°C
Input impedance: > 1 MW

NOTES:

1) Don’t run input wires together with power cables.

2) For TC wiring use proper compensating cable
preferable shielded.

3) when a shielded cable is used, it should be connected
at one point only.

Fig. 1

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1

RTD INPUT

RTD

4

LINEAR INPUT

RTD

1
3

1
3

4

3

3

1

1

Shield

G

mA,

+

mV

or

_

V

+

mA,

mV

_

or

V

Fig. 3 RTD INPUT WIRING

Input: for RTD Pt 100 W, 3-wire connection.
Line resistance: automatic compensation up to 20 W/wire

with no measurable error.
NOTES:

1) Don’t run input wires together with power cables.

2) Pay attention to the line resistance; a high line
resistance may cause measurement errors.

3) When shielded cable is used, it should be grounded at
one side only to avoid ground loop currents.

4) The resistance of the 3 wires must be the same.

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Fig. 4 mA, mV AND V INPUTS WIRING
NOTES:

1) Don’t run input wires together with power cables.

2) Pay attention to the line resistance; a high line
resistance may cause measurement errors.

3) When shielded cable is used, it should be grounded at
one side only to avoid ground loop currents.

Input type

11

0 - 60 mV

12

12 - 60 mV

13

0 - 20 mA

14

4 - 20 mA

15

0 - 5 V

16

1 - 5 V

17

0 - 10 V

18

2 - 10 V

2

impedance

> 1 MW

< 5 W

> 200 kW

> 400 kW

Accuracy

0.2 % + 1 digit
@ 25°C

B) LOGIC INPUT

SP / SP2

8

7

Fig. 5 - LOGIC INPUT WIRING
This logic input allows to select the operative set point.

logic input op. set point

open SP
close SP2

Safety notes:

1) Do not run logic input wiring together with power
cables.

2) Use an external dry contact capable of switching 0.5
mA, 5 V DC.

3) The instrument needs 100 ms to recognize a contact
status variation.

4) The logic input is NOT isolated by the measuring input

CURRENT TRANSFORMER INPUT

This input allows to measure and display the current
running through the load, driven by the OUTPUT 1, during
the ON and the OFF period of the OUT 1 cycle time.
By this features it is also available the "Out 1 failure
detection" function (see page 18)

5

6

Load

Fig. 6 CURRENT TRANSFORMER INPUT

WIRING

NOTES:

1) The input impedance is equal to 10 W.

2) The maximum input current is equal to 50 mA (50 / 60
Hz).

3) The minimum period (ON or OFF) to perform this
measurement is equal to 400 ms.

Scaling: programmable from 10 A to 100 A (with 1A
step).
Resolution:

- for full scale up to 20 A: 0.1 A.

- for full scale from 21 A to 100 A: 1 A

Safety note:

- Do not run current transformer input wiring together
with power cables.

Current

transformer

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3

C) RELAY OUTPUTS

OUT 3

OUT 4

OUT 2

OUT 1

Fig. 7 RELAY OUTPUTS WIRING
The outputs 1 and 2 are protected by varistor against
inductive load with inductive component up to 0.5 A.
The contact rating of the OUT 1 is 3A/250V AC resistive
load.
The contact rating of the OUT 2, 3 and 4 is 2A/250V AC
resistive load.
The number of operations is 1 x 105 at specified rating.

NOTES:

1) To avoid electrical shock, connect power line at the
end of the wiring procedure.

2) For power connections use No 16 AWG or larger wires
rated for at last 75 °C.

3) Use copper conductors only.

4) Don’t run input wires together with power cables.

5) Relay output and SSR drive output are both available.
For the relay output selection see "Preliminary
hardware settings" chapter.

16

17

18

19

20

21

22

NO - OUT 3

NO - OUT 4

C - OUT 3 e 4

NO - OUT 2

C - OUT 2

C - OUT 1

NO - OUT 1

VOLTAGE OUTPUT FOR SSR DRIVE

+

OUT 1

Fig. 8 SSR DRIVE OUTPUT WIRING
It is a time proportioning output.

Logic level 0: Vout < 0.5 V DC.
Logic level 1:

- 14 V + 20 % @ 20 mA

- 24 V + 20 % @ 1 mA.
NOTES:

1) This output is not isolated. A double or reinforced

2) Relay output and SSR drive output are both available.

14

_

15

Maximum current = 20 mA.

isolation between instrument output and power supply
must be assured by the external solid state relay.

For the SSR output selection see "Preliminary
hardware settings" chapter.

+

_

SOLID STATE

RELAY

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4

SERIAL INTERFACE

RS-485 interface allows to connect up to 30 devices with
one remote master unit.

I
N
S
T
R
U
M
E
N
T

Fig. 9 - RS-485 WIRING
The cable length must not exceed 1.5 km at 9600 BAUD.
NOTES:

1) This is an RS485 isolated interface.

2) The following report describes the signal sense of the
voltage appearing across the interconnection cable
as defined by EIA for RS-485.
a) The ”A” terminal of the generator shall be negative

b) The ”A” terminal of the generator shall be positive

A/A' A'/A

11

10

9

with respect to the ”B” terminal for a binary 1 (MARK
or OFF) state.

with respect to the ”B” terminal for a binary 0
(SPACE or ON)

COMMON

M
A

B'/BB/B'

S
T
E
R

D) POWER LINE WIRING

N (L2)

13

12

L (L1)

Fig. 10 POWER LINE WIRING
100V to 240V AC 50/60Hz (-15% to + 10% of the nominal

value).
24 V AC/DC (+ 10 % of the nominal value).

NOTES:

1) Before connecting the instrument to the power line,
make sure that line voltage corresponds to the
description on the identification label.

2) To avoid electrical shock, connect power line at the
end of the wiring procedure.

3) For supply connections use No 16 AWG or larger wires
rated for at last 75 °C.

4) Use copper conductors only.

5) Don’t run input wires together with power cables.

6) For 24 V DC the polarity is a do not care condition.

7) The power supply input is NOT fuse protected.
Please, provide it externally.

Power supply Type Current Voltage

24 V AC/DC T 500 mA 250 V

100/240 V AC T 63 mA 250 V
When fuse is damaged, it is advisable to verify the
power supply circuit, so that it is necessary to send
back the instrument to your supplier.

8) The safety requirements for Permanently Connected
Equipment say:

- a switch or circuit-breaker shall be included in

the building installation;

- It shall be in close proximity to the equipment

and within easy reach of the operator;

- it shall be marked as the disconnecting device for the

equipment.
NOTE: a single switch or circuit-breaker can drive
more than one instrument.

9) When a neutral line is present, connect it to terminal

13.

L (L1)

N (L2)

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5

PRELIMINARY HARDWARE SETTINGS

How to remove the instrument from its case

1) Switch off the instrument.

2) Push gently the lock A on the right.

A

3) While the lock A is maintained out, slide out the right
side of the instrument.

MAIN INPUT SELECTION

If an input different from TC-RTD input (standard) is desired,
remove the instrument from its case and set J1 according to
the following table.

INPUT J1
TYPE 1-2 3-4 5-6 7-8 9-10
TC-RTD open close open open open
60 mV open close open open open
5 V close open close open open
10 V open open close open open
20 mA open open open close close

NOTE: the jumper not used can be placed on pin 7-9

2 4 6 8 10

J1

A

4) Push gently the lock B on the left.

5) While the lock B is maintained out, slide out the
instrument.

B

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1 3 5 7 9

Fig. 11

6