Protect Switch 400V motors
Version:
2.0 | 14.02.2021
instruction manual | 1145616-00000
page
22
from
28
8.1.3.2 Status LEDs Motor protection ELR (-Q1)
Status
Signal | Description
PWR
ERR
L
R
Fault
acknow
ledgem
ent
Green
Red
Yellow
Off
No supply voltage
present
-
Ready for operation
Supply voltage present
-
Drive switched on
Anti-clockwise (L)
-
Clockwise (R)
-
Internal error
Internal equipment fault -
Equipment must be changed
Nm
External fault in
control circuit or
peripherals (need
for maintenance)
Motor protection function: The motor current is greater than the specified motor rated
current: Cooling down time runs (20 mins.)
Fault during anti-clockwise
Aut
Fault during clockwise
Aut
"L" or "R" flash after 2 mins. have passed: Manual reset possible
Fault during anti-clockwise
Man
Fault during clockwise
Fault when restoring system
status:
Manual acknowledgement after 2
mins. possible
Man
Symmetry:
The variation between
the two motor currents is more
than 33 %
Man
Blocking:
The maximum measurable motor current is exceeded for more than 2 secs.
Fault during anti-clockwise
Man
Fault during clockwise
Man
Message: Power
transmission path
remains connected
Message with control signal applied:
- 2 or more phases missing
- No motor connected
- Motor current on at least
two phases > 2 secs. less than the
minimum settable current value
Message for anti-clockwise
Ne
Message for clockwise
Ne
Explanation:
LED off
LED flashing
LED on
Aut = Automatic / Man = Manual / Nm = Not possible / Ne = Not required
