Jung 1735DS User manual
LB management
Speed regulator
Speed regulator
Art. no.: 1735DS
Operating instructions
1 Safety instructions
Electrical devices may only be mounted and connected by electrically skilled persons.
Serious injuries, fire or property damage possible. Please read and follow manual fully.
Danger of electric shock. Always disconnect before carrying out work on the device or load.
Danger of electric shock. Device is not suitable for disconnection from supply voltage. The load
is not electrically isolated from the mains even when the device is switched off.
These instructions are an integral part of the product, and must remain with the end customer.
2 Intended use
– Speed controller for controlling the speed of single-phase motors e.g. induction or shaded
pole motors
– Mounting in appliance box according to DIN 49073
– Operation with suitable cover
3 Product characteristics
Product characteristics
– Device is operating in leading edge phase control
– Operation without neutral conductor possible
– Switch-on via soft start to maximum speed
– Minimum speed can be saved permanently
– Connection of extensions possible
– Electronic short-circuit protection with permanent switch-off after approx. 100 ms
– Electronic over-temperature protection
4 Operation
Switching motor or adjusting speed
The operation on the main device and the 3-wire rotary extension is identical.
￭ Press the control button briefly: Motor switches on or off.
￭ Turn the control button to the right: Speed is increased.
￭ Turn the control button to the left: Speed is reduced.
Basic operation using 2-wire extension with push-button top or push-button
￭ Press briefly: Motor switches on or off.
￭ Press and hold: The speed is changed as long as the button is pressed, at maximum up
to the respective end value.
Push-button: The adjustment direction is changed with each new long actuation.
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Speed regulator
5 Information for electrically skilled persons
5.1 Fitting and electrical connection
DANGER!
Mortal danger of electric shock.
Disconnect the device. Cover up live parts.
Fitting and electrical connection
L
1
N
16 A
AC 230 V ~
L
M
L
Imax = 1,8 A
N1
1NL
~
(4)
(2)
(1)
(5)
(6)
(3)
Figure1: Connection diagram with optional extensions
(1) Button Test
(2) LED display
(3) Rotary axle
(4) 3-wire rotary extension
(5) 2-wire extension
(6) Push-button, NO contact
The connection of a central extension is not possible.
Operation without neutral conductor possible.
Only connect illuminated push buttons if they have a separate N terminal.
Precondition: The maximum motor current (Imax) must not exceed the switching current of 1.8 A.
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Speed regulator
Figure2: Clampable conductor cross-section
￭ Connect the device according to the wiring diagram (Figure 1). Observe the clampable
conductor cross-sections (Figure 2).
￭ Install the device in the appliance box.
The motor can be switched by briefly pressing the Test button (1).
￭ Set the minimum speed, see chapter Setting the minimum speed.
￭ Mount the cover.
Reset the overheating protection / short-circuit protection
If the electronic overheating or short-circuit protection has been triggered, disconnect the speed
controller from the mains.
5.2 Commissioning
Setting the minimum speed
DANGER!
Mortal danger of electric shock.
The following work must be carried out under mains voltage and therefore may only
be carried out by an electrician!
Only use insulated tools for the work! Cover up live parts in the working environ-
ment.
The minimum speed must be set so that the motor does not stop at the lowest speed set-
ting.
Prerequisites: Speed controller is ready for operation and the central plate is not mounted.
￭ Press the button Test (1) until LED (2) lights up.
The current operating state remains the same.
After 45 seconds without an actuation, the LED (2) goes out and the device exits the set-
ting mode. The minimum speed remains unchanged.
￭ Briefly turn the rotary axle (3).
LED (2) flashes. The speed controller sets the highest adjustable minimum speed.
￭ Turn the rotary axle (3) to the left or right to set the minimum speed. While doing so, take
the motor follow-up into account.
￭ Save the setting: Press the Test button (1) for less than 1 second or do not press for
45 seconds.
The LED (2) goes out. Speed controller switches off.
6 Technical data
Rated voltage AC 230 V~
Mains frequency 50 / 60 Hz
Standby power < 0.5 W
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LB management
Speed regulator
Power loss max. 4 W
Ambient temperature -5 ... +45 °C
Switching current at 25 °C 60 mA ... 1.8 A
max. motor current (Imax) 1.8 A
Reduction of switching current
per 5°C in excess of 25°C -10%
when installed in wooden or dry construction walls -15%
when installed in multiple combinations -20%
Number of extension units
3-wire rotary extension 10
2-wire, push-button unlimited
Total line length
pwr cable max. 100 m
Extension max. 100 m
7 Troubleshooting
Motor stops at lowest speed setting
Cause: The set minimum speed is too low.
Increase the minimum speed.
Motor speed is too fast at lowest speed setting
Cause 1: The set minimum speed is too high.
Reduce the minimum speed.
Speed controller has switched off and cannot be switched on again.
Cause 1: overheating protection has tripped.
Reduce the connected load.
Disconnect the speed controller from the mains by switching off the circuit breaker.
Let the speed controller cool down for at least 15 minutes.
Switch on the circuit breaker and speed controller again.
Cause 2: short-circuit protection has tripped.
Disconnect the speed controller from the mains by switching off the circuit breaker.
Eliminate short-circuit.
Switch on the circuit breaker and speed controller again.
Short-circuit protection is not based on a conventional fuse, no metallic separation of the
operational current.
8 Warranty
The warranty is provided in accordance with statutory requirements via the specialist trade.
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LB management
Speed regulator
ALBRECHT JUNG GMBH & CO. KG
Volmestraße 1
58579 Schalksmühle
GERMANY
Telefon: +49 2355 806-0
Telefax: +49 2355 806-204
www.jung.de
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