Electrical Test Values
20
Electrical Linear Actuators for Continuous Modulating Control LME620AI / LME620AN (Contrac)
43/68-13 EN
8
Electrical Test Values
NOTICE
Check wiring and proper terminal connections before you start the test procedure.
8.1
Test values (position sensor)
The in- / output signals are assigned to terminals of the electronic unit as follows:
8.2
Test values
Brake voltage:
DC 135 V with AC 115/AC230 V mains supply
Motor voltage:
check for currents symmetry (i. e. with clip-on ammeter)
8.3
Winding resistance (motor)
STOP
STOP
Disconnect the voltage supply and the actuator plug prior to any resistance measuring. Make sure that
switching off the actuator does not affect the process.
Depending on the actuator version proceed as follows:
8.3.1
LME620AI (integrated electronic unit)
- remove the plug
- remove the actuator hood with electronic unit
- check pins at pin carrier; see fig. 20 for pin reference
8.3.2
LME620AN (separate electronic unit)
- remove plug
- measure between pins at actuator plug; see fig. 17 + 19 for pin reference
term. 17:
DC +15 V; +/- 15% (supply); refer to
term 22
term. 18:
only used for cable length detection
with EAS822
term. 19:
clock
term. 20:
data
term. 21:
reference potential for position signal
term. 22:
reference potential for temp. signal
and supply voltage
term.
23:
position proportional voltage signal
(0.4... 4.4 V); refer to term. 21; end po-
sitions of actuator must be adjusted
term. 24:
temperature proportional voltage sig-
nal; refer to term. 22;
(
∆
V approx. 22.4 mV / °C;
approx. 1.8 V at 20°C)
(see fig. 25 for terminal position)
Fig. 25: Signal terminal location
signal terminals
