Yaskawa Remote Display Unit RDU for use with MicroTrac DSD LAN - Manual (Page 6)

6
the alphanumeric display. The XY
coordinate system used is as follows:
KEYPAD, FRONT VIEW
X = 0 1 2 3 4
| | | | |
Y = 0 — 00 10 20 30 40
1 — 01 11 21 31 41
2 — 02 12 22 32 42
3 — 03 13 23 33 43
PB1 ("NAME" push button) = 99
PB2 ("NEXT" push button) = 98
ERROR MESSAGES
When the RDU detects an error
condition, it shows an error message in the
alphanumeric display. The RDU reactions
and the error condition that caused the
reaction are as follows:
RDU REACTION ERROR CONDITION
Shows “COMM. 35 seconds have
FAILURE” on alpha- elapsed since RDU
numeric display has been updated
and blanks the from RDC
numeric display
Shows “ - ” for the Received invalid
number numeric value
Bottom segment Received invalid
of most significant numeric value
digit is lit
Shows “ERR - WD Watchdog timed out
TIMEOUT” and
halts
RDU REACTION ERROR CONDITION
Shows “ERR - INT Timer overflow inter-
TIMER” and halts rupt occurred and
should not have
Shows “ERR - INT A/D interrupt
A/D” and halts occurred and should
not have
Shows “ERR - INT HSI interrupt
HSI” and halts occurred and should
not have
Shows “ERR - INT HSO interrupt
HSO” and halts occurred and should
not have
Shows “ERR - INT HSI.0 interrupt
HSI.0” and halts occurred and should
not have
Shows “ERR - INT External interrupt
EXT” and halts occurred and should
not have
RD 791-10