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MPH-02, MPB-02, MPD-02
Diagnostic Messages and Status Displays
Status of Digital Inputs/Outputs
Check for Inadmissible Bit
Numbers
Checks in Transition Command
DOK-INDRV*-MP*-02VRS**-FK01-EN-P
Configuration of Digital I/Os for Integrated Safety
Technology
In order to use the digital I/Os for the safety technology integrated in the
drive, the corresponding assignments have to be made via the
parameters P-0-0681 and P-0-0682:
• inputs
(e.g. P-0-3212, Safety technology signal control word,
channel 1)
• outputs
(e.g. P-0-3214, Safety technology signal status word,
channel 1)
Digital Inputs/Outputs on Control Section
The status of the digital inputs/outputs is displayed in parameter
P-0-0303, Digital I/Os, status display.
The following applies to P-0-0303:
• bit set ("1")
→ At the assigned input/output a HIGH level (+24 V) is provided or the
"bb" contact is closed.
• bit not set ("0")
→ At the assigned input/output a LOW level (0 V) is provided or the
"bb" contact is opened.
When entering data in parameter P-0-0301, Digital I/Os, bit numbers, a
check is run to find out whether the indicated bit number is a valid bit of
the parameter (IDN) configured in parameter P-0-0300.
The following applies:
• 2-byte parameter
→ only bit numbers between 0 and 15 allowed
• 4-byte parameter
→ only bit numbers between 0 and 31 allowed
Note:
In the case of invalid inputs or inputs/outputs that haven't been
configured yet, "-1" is displayed as bit number.
The following monitoring functions are used for guaranteeing an efficient
configuration of the digital I/Os and preventing invalid configurations:
• If the limit switch function (Limit+/-) was activated in P-0-0090 (bit 1)
but not assigned to any digital input via P-0-0300, the error message
C0246 Trav. range lim. switch not ass. to dig. input will appear
when progressing to the operating mode. This message is output to
avoid moving the drive without configured limit switch function.
• For double axis devices the digital I/Os basically can be assigned to
both axes. This is the reason why an input or output is sometimes
configured for both axes. In this case the error message C0247 Dig.
output already assigned to another axis will be displayed.
• C0248 Dig. input assigned differently to axes
• If the bit number entered in P-0-0301 is too large, the error message
C0249 Dig. I/Os: bit number too large will be generated.
Extended Drive Functions
9-53
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