User Manual

Turning on the power and verifying the connections

Checking the digital input/output unit (Mirror mode)

If the output unit and the engine are correctly connected in Mirror mode and the PORT B SELECTOR of the DIO8 is in

the 5-8 position, the I/O UNIT ID indicator will show the ID number of that unit (i.e., the number of the OUTPUT con-

nector on the engine to which the INPUT A connector of the DIO8 is connected), and a dot ( . ) will be displayed at each

side of the number.

If the PORT B SELECTOR switch of the DIO8 or

the word clock synchronization are not correct, the

I/O UNIT ID indicator of the DIO8 will show one

of the following error displays.

•

UL (unlocked)

....The word clock of the DIO8 is

not synchronized with the

PM1D system. Check the con-

nections of the DIO8’s WORD

CLOCK IN connector, or the

word clock setting of the CS1D

(

→

p.28).

•

ID number and A (or b) displayed alternately

Since control signals from the CS1D forcibly

switched the valid engine to A (or B), the setting of

the PORT B SELECTOR switch of the DIO8 does

not match the actual operation. This display does

not signify an actual error. However as necessary,

check the setting of the PORT B SELECTOR

switch or the setting of the CS1D.

I/O UNIT ID

PORT B SELECTOR

5-8

1-4

POWER

ON/ OFF

I/O UNIT ID

ID number of the DIO8

(when the INPUT A connector of the DIO8

is connected to the OUTPUT 3 connector

of the engine)