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 16
4.9 Proportional Control Unit – PCU (Optional)
The actuators can be equipped with an additional PCU-PCB (Printed Circuit Board). This circuit board
includes a mounting kit and can be installed in any standard open-close actuator. The PCU converts an
open-close actuator into a modulating actuator.
Note: Please be aware that since the year 2020 a second version PCU (VAC) became available. This PCU can
be recognized by the “PCU-EB” marking on the PCB. This PCB has a slightly different setting
instruction, which can be found in paragraph 4.9.5..
4.9.1 PCU-A – Proportional Control Unit Alternating Current
PCU-A (1P and 3P) High performance Controller, using a 10 bit A/D converter and 8 bit
microprocessor technology.
PCU-A Features
Model
PCU-A (1 Phase and 3 Phase)
Power
85 ~ 260 VAC Free Voltage ± 10%, 50/60Hz, Max. 4 VA
Input Signal
4~20mA DC, 1~5V DC, 2~10V DC, 0~5V DC, 0~10V DC
Input Impedance
250Ω
Output Signal
4~20mA DC, 1~5V DC, 2~10V DC, 0~5V DC, 0~10V DC
Output Impedance
250Ω Max
Output Contact
1 (Fault monitor)
Deadtime Adjustment
0.05~7.5 seconds
Deadband Adjustment
0.0625~1mA (0.0625mA + step no. x 0.0625mA, 15 steps total)
Ambient Temperature
-10°C (14°F) up to +70°C (158°F)
Ambient Humidity
90% RH Max (non-condensation)
The factory settings of the PCU card are normally set according to the customer requirements at the
time of order. However, we strongly recommend that input power, signal input selection and DIP switches
are to be verified prior to the actuator start up.
Settings the PCU functions are shown in paragraph 4.9.3 and 4.9.4.
PCU-A 1P
PCU-A 3P

Econ 7907EX Specifications

General

Brand	Econ
Model	7907EX
Category	Controller
Language	English