Yaskawa MP940 - Manual (Page 342)

Maintenance and Inspection
8.1.1 Daily Inspections
8-2
8.1 Inspection Items
This section summarizes daily and regular inspection items that must be performed by the cus-
tomer.
8.1.1 Daily Inspections
The following table lists the daily inspection items.
Table 8.1 Daily Inspection Items
No. Inspection Item Inspection Details Criteria Action
1 Installation conditions of
Module, etc. Check the mount-
ing screws for
looseness. Check
whether the covers
are all in place. The screws and cov-
ers must be secured
correctly. Retighten the screws.
2 Connection conditions Check the terminal
screws for loose-
ness. The screws must be
tight. Retighten the screws.
Check the connec-
tors for looseness. The connectors must
be tight. Retighten the connec-
tor set screws.
Check the gap
between crimp ter-
minals There must be an
appropriate gap
between the terminals. Correct as necessary.
3 Indica-
tors RDY indicator Check whether the
indicator is lit. The indicator must be
lit. (It is abnormal if
the indicator is unlit.) See Chapter 9 Trou-
bleshooting.
RUN indicator Check whether the
indicator is lit while
the system is in
RUN state. The indicator must be
lit. (It is abnormal if
the indicator is unlit.) See Chapter 9 Trou-
bleshooting.
ALM indicator Check whether the
indicator is unlit. The indicator must be
unlit. (It is abnormal if
the indicator is lit.) See Chapter 9 Trou-
bleshooting.
BAT indicator Check whether the
indicator is unlit. The indicator must be
unlit. (The battery
voltage is too low if
the indicator is lit.) Replace the battery.
See Chapter 8.2.2
Battery Replacement.
PRT1 indicator Check whether the
indicator comes on
and goes off cor-
rectly. Serial port 1 sending.
PRT2 indicator Check whether the
indicator comes on
and goes off cor-
rectly. Serial port 2 sending.