Maintenance Mode
Cha pte r C
Cha pte r C
2.2 Di check Displays the status of digital input. In the maintenance main menu of Fig. 1.3.1, select "Di Check," and press the <
> key to display the Di check screen shown in Fig. 2.2.1.
Pressing the < > key (previous page) or the < > key (next page) changes the pages. To go back to the maintenance main menu, press the <
> key.
(The items differ depending on the model.)
Fig. 2.2.1 Di check screen
<Description of display contents> Port
State
Di1 to Di28: Input to AML
Close: Contact ON
Ds11 to Ds18:
Input to serial port 1
Open: Contact OFF
Ds21 to Ds28:
Input to serial port 2
Reading method of Di signal (State) Di signal “State” shows “Open” and “Close” of the each switch contact. However, Main and Aux. winch two-blocking detection switch (circuit) contacted with the series circuit. Therefore when either switch detects the overwound and the switch contact becomes “Open”, then, both contacts become “Open”. In a word, State of Di5 changes two signals at the same time. These functions are not provided in other Ai and Pi, etc.
C-7
W301-0471E
