Failures At Brake, Fuse Or Wiring - ABB LME620AI Service Instruction

10.2 Failures at brake, fuse or wiring

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