J+J
subject to technical changes
Manual J4C S20-S300
-PAGE 1-
Product description
The electromechanical J+J quarter-turn actuators are designed to control and regulate industrial valves. For this purpose, the
drive has a large number of supporting systems and a freely configurable cam system. In the standard version, the drives are
pre-adjusted to 0°-90°
(0° = closed / 90° = open)
. Other working angles are also available. The following manual will guide you
through all the necessary steps for installation and operation of the actuator.
Read this manual carefully before installation and commissioning in order to avoid mistakes!
For special models, the enclosed additional instructions and the type label / wiring diagram of the device apply additionally.
Function
The drive automatically detects the connected operating voltage. Depending on the control, it moves in clockwise or
counter-clockwise direction into its predefined end position, which is set via the cam system and interrogated by limit switches.
The signaling is done before reaching the end position also via the cam system and two other limit switches, which are
potential-free interrogated. While the brushless motor drives the main shaft via the gearbox, the DOME position indicator
permanently shows the position of the valve. In addition, the operating status is displayed via the multicolored status LED.
To prevent condensation in the housing when the outside temperature fluctuates, the actuator has an automatic heater, which
protects the interior.
For this, the actuator needs a permanent power supply.
If the valve is blocked or has a high torque, the electronic torque limiter protects against damage to gear and motor.
In the event of a power failure or emergency intervention, the manual override can be switched on via the changeover switch
and the actuator can then be manually turned via the handwheel.
Connections
The mechanical connection is made via a standardized interface according to DIN 3337 / ISO 5211.
For this purpose, each drive has a multi-flange plate and is available with various shaft outputs.
The electrical connection is made via industrial connectors (see connection plug).
Options
Optional functions are available for a wide range of applications (for more information see data sheets):
• BSR
Battery safety return /
DPS
Digital positioning system / Potentiometer / different wiring options
• Gold platet end switches
für lastlose Abfrage der Endlagenrückmeldung (z.B. SPS) 0,1A 30VDC
Maintenance
Maintenance work is not necessary on J+J actuators. A regular check of the function is recommended according to the safety
requirements of the system, especially for rarely used actuators.
Important instructions
The operating instructions must be read carefully and completely before installation.
For special models, the additional instructions are always valid.
The faultless and safe operation of the devices requires proper transport, professional storage,
installation and assembly as well as careful operation and maintenance.
When operating electrical devices, certain parts of these devices are inevitably under dangerous voltage.
Not noticing the general electrical safety regulations may result in serious personal injury or property
damage. Only qualified personnel may work on or near these devices. The staff must be familiar with all
safety instructions and maintenance according with this operating instruction.
Notes for planning
Before using the electric actuator, all circumstances relating to the connection, fitting and surrounding area must be clarified.
Otherwise long-term damage or a functional failure may occur.
Environment and installation position
Do not install J+J actuators overhead (flange upwards).
It is always important to pay attention to the accessibility of the manual override and visibility of position indicator and status LED.
In applications with vibrations in the pipeline, line compensators shall be installed.
If actuators are used outdoor, adequate protection (roofing) against climatic influences must be provided. Strong sunlight can
damage the drive due to heat development and UV radiation. Icing of the drive can lead to the unusability of the manual override.
To avoid condensation, the internal heater must always be active (see electrical connection).
Geändert: 12.12.2018
Name: MU
J+J
®
Deutschland
GmbH
Brunnenweg 7
31061 Alfeld
Tel.: +49 5181 85590-0
Fax.: +49 5181 85590-29
www.juj-deutschland.de
