Super Systems 7SL User Manual

Instruction Manual
PN 31302

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MODEL 7SL
HIGH/LOW LIMITROL

1

®

1/16 DIN, FOUR DIGIT HIGH/LOW LIMITROL

MODEL: 0

7 S L - 9 1 - 0 0 0 - 0 - 0 0

Field No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Fields 1 through 4. BASE

07SL - Limitrol (High/Low Limit – shipped as High Limit)

Field 5. INPUT

9 - TC types J, K, T, E, N, S, R, B, L, U, G, D, C and

Platinel II; and Pt 100 RTD;
0 to 20 mAdc and 4 to 20 mAdc;
0 to 60 mVdc and 12 to 60 mVdc;
0 to 5 Vdc or 1 to 5 Vdc;

0 to 10 Vdc or 2 to 10 Vdc
Note: All inputs are factory calibrated and selectable
by jumper. Factory set at Type J.

Field 6. OUTPUT (High/Low Limit)

1 - Relay (Form C)

Fields 7, 8. ALARMS, OPTIONS

00 - None
10 - One alarm – Relay Form A
11 - One alarm – Relay Form A, plus

RS485 and one logic input
Note: when code 11 is specified, instrument
length is 122 mm.

Field 9. POWER SUPPLY

3 - 100 to 240 Vac
5 - 24 Vac/Vdc

Fields 10 through 15. RESERVED

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2

Unpack the

Instrument

Wiring

Configuration

Operating

Parameters

SV

Congratulations

Congratulations on your purchase of one of the easiest to
configure high/low Limitrols on the market. After a 3 step
configuration procedure, your process will be up and
running.

Guide to simple set-up

To set-up the Limitrol only 3 steps are required:

1. Wire the instrument (page 7).

2. Configure the instrument (page 14).

3. Check the operating parameters (page 22).

3

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Table of Contents

1/16 DIN, FOUR DIGIT HIGH/LOW LIMITROL..........2

Guide to simple set-up ......................................3

MOUNTING REQUIREMENTS..................................5

DIMENSIONS AND PANEL CUTOUT .......................6

WIRING GUIDELINES ...............................................7

PRELIMINARY HARDWARE SETTINGS ...............12

CONFIGURATION KEY FUNCTIONS .....................14

CONFIGURATION PROCEDURE ...........................14

OPERATING MODE ................................................20

Normal Display Mode .....................................20

Indicators ........................................................ 20

Key Functions in Normal Display Mode ..........21

Parameter Display Mode................................. 21

Key Functions in Parameter Display Mode .....21

OPERATING PARAMETERS................................... 22

ERROR MESSAGES ...............................................23

DEFAULT PARAMETERS ........................................24

SPECIFICATIONS ................................................... 26

CALIBRATION PROCEDURE.................................. 30

General Guidelines ......................................... 30

Calibration Parameters ................................... 30

Procedure .......................................................31

Entering Calibration Values .............................31

MAINTENANCE .......................................................35

CAUTION:

USE WIRE SUITABLE

FOR 75°C MINIMUM.

NOTES

• For supply connections use No 16 AWG or larger
wires rated for at least 75 °C.

• Use copper conductors only.

• Class 2 wiring must be a minimum of 1/4 inch from
any Class 1 conductors.

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4

MOUNTING REQUIREMENTS

Select a mounting location with the following
characteristics:

1) Minimal vibration.

2) An ambient temperature range between 0 and
50°C (32 and 122 °F).

3) Easy access to the rear of the instrument.

4) No corrosive gases (sulfuric gas, ammonia, etc.).

5) No water or other fluid (i.e. condensation).

6) Relative humidity of 20% to 80% non condensing.

The instrument can be mounted on a panel up to 15 mm
(0.591 in) thick with a square cutout of 45 x 45 mm (1.772
x 1.772 in). For outline refer to Dimensions and Panel
Cutout.

Bracket

Gasket

Panel surface texture must be better than 6.3 µmm.
The instrument is shipped with a rubber panel gasket (50

to 60 Sh). To assure the IP65 and NEMA 4 protection,
insert the panel gasket between the instrument and the
panel as shown below.

Install the instrument as follows:

1) Insert the instrument in the gasket.

2) Insert the instrument in the panel cutout.

3) Pushing the instrument against the panel, insert the
mounting bracket.

4) Torque the mounting bracket screws between 0.3
and 0.4 Nm (2.66 and 3.54 lbf-in).

5) To insure NEMA 4X/IP65 protection, make sure the
instrument does not move within the cutout .

Panel

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5

DIMENSIONS AND PANEL CUTOUT

48 mm

(1.890 in)

48 mm

(1.890 in)

75 mm

(2.953 in)

10 mm

(0.394 in)

60 mm

(2.362 in)

45 mm, -0, +0.6 mm

(1.772 in, -0, +0.024 in)

45 mm, -0, +0.6 mm

(1.772 in, -0, +0.024 in)

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122 mm (4.803 in) w/ RS-485

105 mm (4.134 in) w/o RS-485

6

WIRING GUIDELINES

Terminal Layout

+

C

6

OUT 2

NO

7

_

8

RTD

9

_

TC

+

10

11
12
13
14

DIG 1

LINEAR

15

A/A'

B/B'
RS485

C

NO

OUT 1

C

NC

PWR LINE

100/240Vac

1
2

3
4

24 Vac/dc

5

A) Measuring Inputs

NOTE: Any external components (like Zener diodes,
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

+

10

_

9

Shield

+

10

_

9

Shield

NOTE: When a relay output is used to drive an inductive
load, connect an external snubber network (RC) across
the terminals:

RC

in accordance with the following table:

daoL

C

tnerruC

(µ )FR(Ω)

Am04<740.00012/1caV062

Am051<1.0222 062caV

pmA5.0<33.0742 062caV

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NOTE:

1) Do not run input wires with power cables.

2) For TC wiring use proper compensating cable,
preferably shielded (see Thermocouple Compen­sating Cable Color Codes).

3) Shielded cable should be grounded at one end
only.

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7

Linear Input

+

10

+

mA,

mV

_

9

_

Shield

+

10

_

9

+

_

G

NOTE:

1) Do not run input wires with power cables.

2) High line resistance can cause measurement
errors.

3) When shielded cable is used, ground it at one end
only to avoid ground loop currents.

4) The input impedance is equal to:
Less than 5 Ω for 20 mAdc input
Greater than 1 MΩ for 60 mVdc input
Greater than 400 KΩ for 5 Vdc and 10 Vdc input

RTD Input

RTD

or

V

mA
mV

or

V

8

NOTE:

1) Do not run RTD wires with power cables.

2) Ground shielded cable at one end only.

109

8

3) Use the correct size copper wires.

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

B) Logic Input

This input is used as a remote reset.
Safety note:

- Do not run logic input wiring with AC power cables.

- Use an external contact with a contact rating
greater than 0.5 mA, 5 Vdc.

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

Logic input

14

RTD

109

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15

8

Thermocouple Compensating Cable Color Codes.

Thermocouple

Material

T Copper Constantan

J/L Iron Constantan

K Nickel Chromium

Nickel Aluminum

R Platinum/Platinum

13% Rhodium

S Platinum/Platinum

10% Rhodium

E Chromel

Constantan

B Platinum 30% Rh

Platinum 6% Rh

N Nicrosil / Nisil

British

BS 1843

+ White

- Blue
Blue

+ Yellow

- Blue
Black

+ Brown

- Blue
Red

+ White

- Blue
Green

+ White

- Blue
Green

+ Brown

- Blue
Brown
–
–

–

American

ANSI MC 96.1

+ Blue

- Red
Blue

+ White

- Red
Black

+ Yellow

- Red
Yellow

+ Black

- Red
Green

+ Black

- Red
Green

+ Violet

- Red
Violet

+ Grey

- Red
Grey
–

German

DIN 43710

+ Red

- Brown
Brown

+ Red

- Blue
Blue

+ Red

- Green
Green

+ Red

- White
White

+ Red

- White
White
–
–

–
–
–
–

French

NFE 18-001

+ Yellow

- Blue
Blue

+ Yellow

- Black
Black

+ Yellow

- Purple
Yellow

+ White

- Green
Green

+ White

- Green
Green
–
–

–
–
–
–

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9

C.1) Relay Outputs

OUT 1

Class 1

OUT 2
Class 1
(Alarm)

NO - OUT 1

1

C - OUT 1

2

NC - OUT 1

3

C

6

NO

7

The cable used for relay output wiring must be as far
away as possible from input or communication cables.
Relay output: Protected by varistor.
OUT 1: Form C contact rating of 3 Amps/250 Vac

resistive load.

OUT 2: Form A Contact rating of 2 Amps/250 Vac

resistive load.

Number of operations: 2 x 10

5

at the specified rating.

NOTES:

1) To avoid shock and possible instrument damage,
connect power last.

2) For power connections use 16 AWG or larger wires
rated for 75 °C.

3) Use copper conductors only.

4) Do not run input wires with power cables.

C.2) Inductive Loads

High voltage transients may occur when switching induc­tive loads. Through internal contacts these transients
may introduce disturbances which can affect the perfor­mance of the instrument. The same problem may occur
when a switch is used in series with the internal contacts
as shown below.

C

R

POWER

LINE

LOAD

For all the outputs, the internal protection (varistor)
assures protection up to 0.5 Amp on inductive loads.

It is good electrical practice to install an additional RC net­work across and as close to the external contacts as
possible.

The value of capacitor (C) and resistor (R) are shown in
the following table.

daoL

C

tnerruC

(µ )FR(Ω)

Am04<740.00012/1caV062

Am051<1.0222 062caV

pmA5.0<33.0742 062caV

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10

D) Serial Interface

For units built with optional RS-485 communication

I
N
S
T
R
U

A/A'

11

B/B'

12

M
E

13

N

COMMON

A'/A

B'/B

M
A
S
T
E
R

T

Maximum cable length: 1.5 km (9/10 mile) at 9600 baud.
NOTE: According to EIA specification for RS-485:
a) The “A” terminal of the generator shall be negative

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

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

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

The RS-485 interface can connect up to 31 instruments
with the remote master unit (see below).

I
N
S
T
R
U

A/A'

11

B/B'

12

M
E

13

N

A'/A

B'/B

COMMON

M
A
S
T
E
R

T

I

11

N
S
T

12

R
U
M

13

E
N
T

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