Trouble Shooting
24
Electrical Linear Actuators for Continuous Modulating Control LME620AI / LME620AN (Contrac)
43/68-13 EN
10.2 Failures at brake, fuse or wiring
E 2.1: actuator can be moved
over entire range via drive but-
tons on LCP
E2.2: Motor / brake wiring acc. to wiring diagram? (see chpt. 6.3
No
E1.1: Yes
No
Yes
E 2.3: Disconnect actuator and valve. Actuator can be moved?
No
Yes
E3.4:Motor winding resistance
acc. to table 3
E 3.5: Check brake. „Click
sound“ audible?
E 3.7: Remove motor (Oil!) Gearing
smoothly rotable over entire range?
R 2.2:
Correct
wiring
R 2.3:
Motor de-
fective
R 2.4:
Adjust
brake gap
R 2.6:
Act. runs
mech.
hard
R 2.7:
Motor /
brake
defective
R 2.8:
Valve runs
hard
No
Yes
No
Yes
No
Yes
Yes
R 2.1 See 10.3
