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Related Manuals for CR-Tec LT 25
Summary of Contents for CR-Tec LT 25
- Page 1 Low Temperature Electric Actuators Installation and Operation Manual Système de chauffage Positionnement Indice de protection Facteur de marche 25Nm -50°C IP68 POSI POSITIONS Enclosure protection Duty cycle Heating system Positioning...
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Page 2: Table Of Contents
POSI model ........................ Description Wiring Instructions Electronic board Electric diagram Parameter selection sequence 3-position model ...................... Description Contacts state Electric diagram Technical data ......................CR-TEC Engineering Inc. • info@crtec.com • www.crtec.com • 203-318-9500... -
Page 3: Safety Instructions
Do not mount the actuator less than 30 cm of a electromagnetic disturbances source. Do not position the equipment so that it is difficult to operate the disconnecting device. CR-TEC Engineering Inc. • info@crtec.com • www.crtec.com • 203-318-9500... -
Page 4: Position Indicator
(+ valve connection 12 mm 12 mm 15 mm 19 mm plate height) Minimum distance above the valve for H = 400 mm H = 375 mm actuator mounting Plate (DV25-45-75) CR-TEC Engineering Inc. • info@crtec.com • www.crtec.com • 203-318-9500... -
Page 5: Exploded View
13 Pilot and power supply terminal 14 Heating system terminal 15 Threaded hole ISO M20 16 Earth screw 17 Mechanical end stops 18 F05/F07 plate (LT25-45-75) 19 17 mm star sleeve (LT25-45-75) CR-TEC Engineering Inc. • info@crtec.com • www.crtec.com • 203-318-9500... -
Page 6: Electronic Boards
=> check that the valve torque is not superior to the maximum torque stand by the actuator => check that the actuator do not exceed the duty cycle indicated (possible overheat) To re-start the actuator, reverse the sense of rotation or switch the power off and on. CR-TEC Engineering Inc. • info@crtec.com • www.crtec.com • 203-318-9500... -
Page 7: Electric Connection - Warnings
Connection to feedback microswitches: • 4 to 24 V DC and 12 to 250 V AC • minimum current 100 mA • maximum current 5 A (resistive), 0.5 A (motor), 0.125 A (capacitive loads) CR-TEC Engineering Inc. • info@crtec.com • www.crtec.com • 203-318-9500... -
Page 8: Electric Connection (Models Without Positioning)
In case of low temperature (< -20 °C), the actuator must be powered 3 hours before using (terminals 1-2- 3-4 and 10-11). This time is necessary for the enclosure to reach functioning temperature. CR-TEC Engineering Inc. • info@crtec.com • www.crtec.com • 203-318-9500... -
Page 9: Description
Use solid wires, 18 AWG maximum (250 VAC/VDC / 5A Max) SUGGESTED CUSTOMER WIRING 3-Position Switch Control On-Off Switch Control POSITION OUTPUT SWITCHES Open Open Close 100V-240V 50/60Hz (100V-350V DC) 15V-30V 50/60Hz (12V-48V DC) — CR-TEC Engineering Inc. • info@crtec.com • www.crtec.com • 203-318-9500... -
Page 10: Posi Model
In case of low temperature (< -20 °C), the actuator must be powered 3 hours before using (terminals 1-2-3- 4 and 10-11). This time is necessary for the enclosure to reach functioning temperature. CR-TEC Engineering Inc. • info@crtec.com • www.crtec.com • 203-318-9500... - Page 11 Instruction terminal block K3 jumper Feed back terminal block Green and red LEDs Adjustment button MEM Yellow LED : power supply indication Adjustment button CLOSE Potentiometer Adjustment button OPEN Motor connexion K1 jumper CR-TEC Engineering Inc. • info@crtec.com • www.crtec.com • 203-318-9500...
- Page 12 The card resolution is 1° 10 kOhm input impedance if control with voltage (0-10 V) and 100 Ohm input impedance if control with current (0-20 mA or 4-20 mA) CR-TEC Engineering Inc. • info@crtec.com • www.crtec.com • 203-318-9500...
- Page 13 In the case of an over torque, the motor stops and the 2 LEDS lights then together to indicate the action of the torque limiter. To re-start it, you must either reverse the sense of rotation, either switch the power off and on. CR-TEC Engineering Inc. • info@crtec.com • www.crtec.com • 203-318-9500...
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Page 14: 3-Position Model
In case of low temperature (< -20 °C), the actuator must be powered 3 hours before using (terminals 1-2- 3-4 and 10-11). This time is necessary for the enclosure to reach functioning temperature. CR-TEC Engineering Inc. • info@crtec.com • www.crtec.com • 203-318-9500... - Page 15 Terminal temperature maximum 194°F / 90 °C • Use solid wires, 18 AWG maximum (250 VAC/VDC / 5A Max) HEATING Ph / + N / - 15V-30V 50/60Hz (12V-48V DC) 100V-240V 50/60Hz (100V-350V DC) — SNAA710000 CR-TEC Engineering Inc. • info@crtec.com • www.crtec.com • 203-318-9500...
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Page 16: Technical Data
The actuator tolerates voltage fluctuation of the electrical grid up to ± 10 % of its nominal system operating voltage The actuator tolerates temporary overvoltages of the electrical grid. CR-TEC Engineering Inc. • info@crtec.com • www.crtec.com • 203-318-9500... - Page 17 CR-TEC Engineering Inc. • info@crtec.com • www.crtec.com • 203-318-9500...
- Page 18 CR-TEC Engineering Inc. • info@crtec.com • www.crtec.com • 203-318-9500...
- Page 19 CR-TEC Engineering Inc. • info@crtec.com • www.crtec.com • 203-318-9500...
- Page 20 CR-TEC Engineering Inc. CR-TEC Engineering Inc. 15 Orchard Park Road Unit 18 Telephone 203-318-9500 | Fax 203-245-2575 Catalog DSBA3700 | Rev. 02/21/2022 info@crtec.com | www.crtec.com...
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