Econ ELSA130, Инструкция по установке и эксплуатации, Страница: 25 / 30

Installation & Operation Manual
ECON actuator Fig. 7917EX, type ELSA50 – 260 www.eriks.com
Rev. 0 – April 10
th
, 2019 24
5.7 Troubleshooting of modulating controller
In case LD3 does not light or any of LD 5 to LD9 lights when the actuator is
motorized, please refer to steps below for basic troubleshooting.
Status of
LEDs
Possible problems Solution
LD3 does
not light up
a. No power supplied.
b. Incorrect connection of the lines
#8, #9 of the potentiometer
c. Modulating controller failed.
a. Check the power supply as well as the
wires connected to terminals #4 & #5,
please refer to section 5.
b. Verify the actuator is wired properly as per
wiring diagram.
c. Send back to the factory for inspection.
LD5 lights
up
a. An incorrect signal type
inputted.
For example, preset with 2-10 V
input but input 4-20 mA.
Or preset with 4 - 20 mA input
but input 2 - 10V signal. In this
case, the actuator still works in
2 - 7V. When the signal is over
7.2 V the LD5 lights.
b. Input a voltage exceeding the
rated. For example, preset with
2-10 V input but input 13.5V.
Verify if the switch 1 is set in accordance with
the type of input signal.
Please refer to section 5.3.
LD 6 lights
up Motor thermal protector started.
a. The duty cycle exceeded the rated.
b. The contact of motor thermal protector
(MOT) disconnected.
LD7 lights
up
a. Signal output short circuit.
b. The input signal type 2-10 V
with reversed polarity. .
a. Verify if the signal output with reversed
polarity. The negative pole should be
connected to terminal #11 and the positive
pole should be connected to terminal 12
b. Verify if the signal input with reversed
polarity when applying 2-10V, the negative
pole should be connected to terminal #6
and the positive pole should be connected
to terminal #7.
LD8 lights
up
Motor over-current. a. Duty cycle exceeded the rated.
Please refer to 3.6 and reduce the duty rating.
b. Check the load.
Check if the motor rotor is locked (For
example: Valve is stuck by foreign objects).
LD9 lights
up Local setting mode - Setting
position for open & close. After completing setting, press “SET” button to
quit.