HYDAC ETS 1700 User Manual

Electronic Temperature Switch
ETS 1700

User Manual

Issue date 28.02.00

1. Functions of the ETS 1700

• Display of the current temperature in °C or °F or in a scale defined by the user.

• Switches the 4 relay outputs according to the temperature and the pre-set switching points

and hystereses or switch-back points.

• Records the maximum temperature since the unit was switched on.

• Menu for basic setting (adaptation of the ETS 1700 to the particular application).

• Two different types of programming enable.

2. Mounting

The ETS 1700 is mounted via the 4 mounting holes in the rear panel of the housing. In critical
applications (e. g. strong vibrations or knocks), the ETS 1700 must be mounted on rubber
buffers (DIN vibration mounts). A mounting kit is available on request (see Point 14.2 "Other
Accessories").
When supplied the connection for the temperature sensor TFP 100 is accessible from the
bottom and the electrical connection is accessible from the top. The front panel can be turned
through 180°, so that the electrical connection can be made from underneath and the connection
for the temperature sensor can be made from the top (see Point 10 "Changing the mounting
position”).
The electrical connection must be carried out by a qualified electrician according to the relevant
regulations of the country concerned (VDE 0100 in Germany).
When connecting the temperature sensor TFP 100 and the analogue output, screened lines
must always be used (e.g. LIYCY 4 x 0.5 mm²). The temperature sensor housing must be
earthed via the

Additional assembly notes which have been shown to reduce the effect of electromagnetic
interference:

• Make line connections as short as possible.

• Use screened lines.

• The cable screening must be fitted by qualified personnel subject to the ambient conditions

and with the aim of suppressing interference.

• Direct proximity to connecting lines of user units or electrical or electronic units causing
interference must be avoided as far as possible.

connection (next to the terminal strip).

3. Pin connections

3.1 Sensor connection

A screened connection line and a 5-pole connector are supplied with the ETS 1700. The
appropriate 4-pole connector (ZBE 03) is supplied with the TFP 100. These must be connected
in accordance with the following pin connection and wiring diagrams.

Pin connection

Wiring diagram

Intern al view of pin connect ions (on the ET S 1700)
5-pole Binder connect or, series 723

1 2 3 4 5

Pin 1

= + supply

Pin 2

3

4

5

2

1

= + signal

Pin 3

= reserved

Pin 4

= - signal

Pin 5

= - supply

= plug housi ng for

screen

Intern al view of pin connections (on the TFP 100)

4-pole Binder connector, series 714

1 2 3 4

2 3

1

Pin 1

= + supply

Pin 2

= + signal

Pin 3

= - signal

Pin 4

4

= - supply

3.2 Relay outputs, analogue output, supply voltage

Relay 4
= Switching point 4

Relay 3
= Switching point 3

Relay 2

= Switching point 2

Relay 1
= Switching point 1

Analogue output (0 V)

Analog ue o utput (signal +)

Supply (0 V)
Supply (+ UB)

14

13

12

11

10

9

8

7

6

5
4

PE

3

2

1

Sensor

resistance

ETS 1 70 0
5-pole

Binder conn ector ,
series 723

screened
connection line

4-pole Binder

connector, series
714

TFP 100

4. Operating keys on the membrane keypad

HYDAC ETS 1700

undo screws
to remove

operating panel

°C

ON

ON

m

o

d

e

OFF

SP1

OFF

SP2

r

e

s

e

t

ON
OFF

SP3

ON

m

a

x

OFF

+

_

SP4

4-digit
digital display

keys for setting the switching points
and additional fun c tions

5. Digital display

After switching on the supply voltage, the unit briefly displays ”ETS” and then displays the
current temperature.

2 s

Notes:

• In the basic settings the display can be altered so that, once switched on, the unit displays a
switching point or the maximum value permanently. In this case ”S.P. 1”, ”S.P. 2”, ”S.P. 3”,
”S.P. 4”, or ”MAX” appears briefly on the display following the switch-on message. The
current temperature can be displayed briefly by pressing the ”+” or ”-” key.

• If the current temperature exceeds the nominal temperature of the unit, it can no longer be
displayed and the display begins to flash.

• If the current temperature is below 0.5 °C, then 0 is displayed.

6. Output function

6.1 Relay outputs

The ETS 1700 has 4 relay outputs. One switching point and one switch-back point and/or one
hysteresis can be set for each relay. The appropriate relay pulls in when the pre-set switching
point is reached and drops back when the temperature falls below the switch-back point.

Whether the unit operates with adjustable hystereses or adjustable switch-back points is
determined via the ”switch-back mode”, in the basic settings (see Point 8).

Switch-back mode is set to "hysteresis":
The pre-set hysteresis determines the switch-back point (switch-back point = switching point

minus hysteresis).
Switch-back mode is set to ”switch-back point”:
The switch-back point is set directly.

Abbreviations: "S.P.1" .. "S.P.4" = switching points 1..4

"HYS.1" .. "HYS.4" = hystereses 1..4
"r.S.P.1" .. "r.S.P.4" = switch-back points 1..4

6.2 Analogue output

Analogue output signal 4..20 mA or 0..10 V (adjustable in the "Basic setting" menu)

6.3 Setting the switching points and switch-back points / hystereses

• Press appropriate key

• Switching point/switch-back point/hysteresis number is displayed e.g. "S.P. 1"

• After 2 seconds the current setting flashes.

• Using the "+" and "-" keys, alter the setting.

• After 3 seconds the display switches back..

6.3.1 Setting a switching point

+ +

ON

m

o

d

e

OFF

SP1

press ON key display set swi tching point

6.3.2 Setting a hysteresis

(Only possible if the switch-back mode is set to ”hysteresis”.)

2 s

= lar ger valu e

+

+
_

3 s

_

= smaller value

temperature

display

ON

m

o

d

e

OFF

SP1

*

press OFF key

6.3.3 Setting a switch-back point

(Only possible if the switch-back mode is set to ”switch-back point”.)

ON

m

o

d

e

OFF

SP1

display

2 s

2 s

set hystere sis

= lar ger valu e

+

*

press OFF key display set switch-back point

= lar ger valu e

+

Notes:

+

+
_

3 s

_

= smaller value

+

+

_

3 s

_

= smaller value

temperature

display

temperature

display

• If ”LOC” appears in the display when trying to alter the settings, programming is disabled.
Corrective action: set hardware and software programming enable to ”ON”. (See Point 9

"Programming enable")

• If the ”+” or ”-” key is held down during alteration, the value automatically advances in larger
increments.

• If a setting has been altered, ”PROG” appears briefly in the display when the display switches
over. The new setting is then saved in the unit.