REXROTH RD 500 Series, Applications Manual

Page: 258 / 276

12-6
Troubleshooting RD 500 RD51
DOK-RD500*RD51*******-IB04-EN-P
No. Designation Message
Cause Remedy / comments
25 SS2 function Warning / fault
Only for option interface cards at option slot 1.
The drive converter detects a physical fault on the
interface cable from the higher-level control
computer. Erroneous data transfer along the fieldbus. Check that the PPO type (protocol type), baud rate,
parity, stop bit and slave address are correct.
If a bus error occurs in the form of an alarm or fault,
then the alarm or the fault or both messages can be
suppressed using parameter P0509; this means that
the system can continue to operate!
Only for CAN bus option:
The protocols sent on the CAN bus interface are
monitored. If a bus error occurs more than 127x, an
alarm is output. If a bus error occurs more than 255x, a
fault is signaled. The alarm or fault, or both messages
can be masked in parameter P0509; this means that
the system can continue to operate.
Only for Profibus option:
Either “No action” or “Fault” can be selected in
parameter P0524 when receiving Clear Data.
Caution: In this case, P0509 should be set to the “All
active” function!
This means that the control computer sends Clear Data
if there is an invalid protocol or a bus error.
Only for Interbus S option:
The response type can be set in parameter P0518 and
the monitoring time when a bus error occurs, in P0519.
Index 0 = process data, index 1 = PKW range.
26 SS2 time monitor Warning / fault
Only for option interface cards at option slot 1.
Within the parameterized response time (P0527), the
higher-level control computer does not send any data. Check connector SS2
Extend the response time (P0527), select another
response type (P0526).
27 Analog input 1 : I<4 mA Warning / fault
Causes outside of the device:
Short-circuit or interrupted cable on the setpoint line
to the analog input or to the optional analog inputs
(only for operating mode 4-20 mA or 2-10 V).
Check the setpoint cable
Causes in the parameterization:
Incorrect response type
Incorrect operating mode
Check the response type in P0564.0X / P0752.0X
Check the operating mode in P0201.0X / P0735.0X
28 Motor overtemperature Warning / fault
The drive converter detects an excessive resistance
at terminals X15.1 and 2.
The motor temperature is too high, temperature
sensor defective, sensor cable defective.
Erroneous parameterization.
Replace the sensor or sensor cable.
Check the temperature evaluation parameters (P0385
– P0389) to ensure that they are correctly set.
If a KTY84 has been selected, the actual motor can be
displayed in °C in the monitor using D1872; if a PTC
has been selected, the actual ohmic value can be
displayed using D1871.