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3 609 929 408/2.1 | LTH
Electric Drives and Controls
| Bosch Rexroth AG
45/60
2 Power Unit LTH
2.7.2
LED-Displays
The operating status of the power unit as well as error messages are displayed by different LEDs on the
front panel.
LED-Display
Color
Significance
EXTERN
green
External program selection (via interface X13)
without designation
green
Internal program selection
(LED next to program selector switch)
USP
red
Overvoltage in intermediate circuit of static
frequency converter
NTF
red
Power supply defect
TFVM
red
Temperature error of voltage supply module
(isolation transformer)
BTBVM
green
Voltage supply module ready for operation
BTB
green
Power unit ready for operation
FG
green
Release (via interface X8)
FGI
green
- Internal release
- No error
- Motor rotating
PV
green
Proportional behaviour of speed regulator
(via interface X8)
FI
red
Current defect (short circuit)
BL
red
Motor blocked
LI
green
Left, in conjunction with step selection
(not active when operated with SE 200)
ST1
yellow
Speed step 1 selected (via interface X8)
(not active when operated with SE 200)
ST2
yellow
Speed step 2 selected (via interface X8)
(not active when operated with SE 200)
ST3
yellow
Speed step 3 selected (via interface X8)
(not active when operated with SE 200)
TF
red
- Temperature error, power unit
- Temperature error, motor
- Power tool cable not connected
EC 37
green
Motor type EC 37 selected
EC 48
green
Motor type EC 48 selected
Table 2:
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