Chapter 6 Maintenance and Inspection
6F8C1259
6.1.2 Periodical inspection
Check the following items regularly (about once every 6 months). Also, check
them when the ambient condition or environment changes.
WARNING
Be extremely careful when measuring the power
supply voltage at the power terminal part of the
module during an inspection.
Otherwise, it may cause an electric shock.
Mandatory
WARNING
Do not modify, repair, disassemble, or
adjust the device, module, or board.
It may cause an electric shock, fire, injury, or failure.
In case of an operation error or failure, contact one of
Toshiba's sales representatives.
Prohibited
Table 6-1 Periodical inspection items
Item Inspection details Criteria
Installation state
Check if the I/O base unit is fixed firmly to DIN rail and if
the module of the I/O base unit is secured.
No looseness or backlash
Check for looseness of the cable connector and damage
of the cable.
No looseness or damage
PA912 module Measure voltage at the I/O base unit terminal block of
BU90A.
Within specified values
Check the state display LED. Illuminates normally
PROFIBUS
slave I/O
Check the input state display LED. Illuminates normally
Check the output state display LED. Illuminates normally
Check if the I/O terminal block is secured. No looseness or backlash
Check for looseness of the terminal screw. No looseness
Check for damage of the wiring cable. No damage
Ambient
environment
Check if the temperature, humidity, vibration, dust are
within the specified values.
Within the general specifications
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