NORD Drivesystems BU0290 - Manual (Page 62)

PROFINET bus module for NORD frequency inverters SK 200E
62 Subject to technical amendments BU 0290 GB-4312
This error is also triggered if process data with an invalid control word (Bit 10 in control word = 0) is received.
This function is activated when the first valid process data telegram is received.
General monitoring of frequency inverter process data
SK 500E series frequency inverters offer the facility for monitoring the active bus interface by means of the
parameter (P513) "Telegram timeout". If the frequency inverter does not receive a telegram within the time
entered here, it assumes that there is a general fault with the bus communication and reports an error.
Note: With SK 200E series frequency inverters, the function of this parameter is implemented by parameter
(P120). Communication errors are therefore reported via the bus module. Parameterisation of (P513) is
therefore not necessary. (P513) should be left at the factory setting.
Option monitoring
With the parameter (P120) "Option monitoring", SK 200E series frequency inverters provide the facility for
monitoring connected technology units (SK xU4-
…) with regard to their current functional status. Generally,
this function corresponds to monitoring via parameter (P513). This parameter (P513) should therefore be left
at the factory setting.
7.1.2 PROFINET error monitoring
An error in the frequency inverter (P700) or in the SK TU4-PNT (P170) results in a diagnostic alarm which is
transmitted to the control unit as an "incoming event". The error value is coded as follows:
Error number (Value from P700 or P170) + 100 h = Alarm number of the diagnostic alarm
Example:
During operation, the error E10.3 (P700 Index 1 = 103) = Timeout occurs via the P151 monitoring. The
SK TU4-PNT sends a diagnostic alarm with the value 359 (= 100h + 103 = 256 + 103 = 359) to the control unit.
Format Error number Alarm code Alarm number
Decimal 10.3 = 103
dec
256
dec
103 + 256 = 359
dec
Hexadecimal = 67
hex
100
hex
= 167
hex
If the error is no longer present a diagnostic alarm ("incident removed") is sent, which resets the error in the
control unit.
With the aid of parameter P163, e.g. during commissioning, various alarms can be sent in order to test the
operation of the control program.
Loss or switch-off of an inverter connected via the system bus:
On loss of connection of the SK TU4-PNT to an FU connected via the system bus an alarm with the error
number 1000 (in the diagnostic buffer of the IO controller --> 256+1000=1256) is sent. This error is not saved
in P170 and is only intended to give information about the loss of the FU as a switch-off of the connected FU
may be part of the application.