Econ 7907EX User Manual

Installation & Operation Manual Proven Quality since 1892
ECON actuator Fig. 7907, type ELA80 – 3000 www.eriks.com
Rev.23 – August, 2023 7
3.1.3 ELA-Series Options
EXD Flameproof enclosure
EXTB Dust ignition proof
WTA Watertight enclosure (IP68 (10m/72hr) Nema 6P
ATS Additional torque switches (SPDT x 2ea, 230VAC – 16A)
EXT Rotating extension - 120°, 180° or 270° (90° is standard)
ALS Additional limit switches (SPDT x 2ea, 230VAC – 16A)
PIU Potentiometer unit (0~1KΩ)
PCU Proportional control unit (input, output 0~10 VDC, 4~20mA DC)
CPT
Current position transmitter (output 4~20mA DC)
ADCM AC/DC Multi-board
SICU Semi-Integral Control Unit (LCU-B + IMS + phase protect indicator) (5W max.)
ICU Intelligent Digital Control Unit (LCU-C + IMS + auto phase discriminator) (5W max.)
PRB ProfiBus (5VDC, 0.1A max., in redundant configuration, multiplied by 2)
MOB ModBus (5VDC, 0.1A max., in redundant configuration, multiplied by 2)
3.1.4 Duty Cycle
Duty cycle rating according IEC60034-1 S4. See table in paragraph 3.1.2 for rating figures.
Exceeding the actuator’s rated duty cycle may cause thermal overload.
Intermittent duty S4
The duty is a sequence of identical cycles which consist of starting time, operation time with constant
load and rest period. The rest period allows the machine to cool down so that thermal equilibrium is
not reached. The relative on-time at S4-25% or S4-50% is limited to 25% and 50% respectively.
3.1.5 Space Heater
Condensation in the actuator is possible due to wide fluctuation of the ambient temperature. The
heater integrated in the control unit prevents this in general.
Ceramic housing with thermostat to prevent over heating with 60℃ set temperature.
Heating Element
Self-regulating
Voltage Range (ELA80~100) (based on the power supply)
115V 5W 4.5KΩJ
230V 5W 18KΩJ
24V DC 5W 200ΩJ
12V DC 5W 47ΩJ
Voltage Range (ELA150~3000) (based on the power supply)
115V 10W 2KΩJ
230V 10W 8KΩJ
24V DC 10W 100ΩJ
12V DC
10W 27ΩJ
3.1.6 Hand Wheel and Declutching
ELA-series actuators are provided with a declutchable manual override
system.
• In order to manually operate the actuator, pull the manual
override lever towards the hand-wheel until. It will remain in position.
• Turn the hand-wheel until the valve reaches the required position.
• Turn clockwise to close and counter-clockwise to open.
Note: The manual override lever returns automatically to auto-position
when the actuator is operated electrically.

Econ 7907EX Specifications

General

Brand	Econ
Model	7907EX
Category	Controller
Language	English