Hitachi PXR-D Instruction Manual page 41

1-30 Connection of signals
1.5.3-3 Warning signal output
The following describes the wiring of the signal that is outputted to the outside for the
purpose of indicating that the IJ printer is in the warning mode.
(a) When using the NO contact (make contact)
Status indicator
lamp or the like
(b) When using the NC contact (break contact)
Status indicator
lamp or the like
For both the NO and NC contacts, the maximum capacities of the fault and
warning condition outputs are 30 VAC/0.5A, or 30 VDC/1 A. If any load having a
greater capacity is used, furnish a separate relay in between.
Further, if a motor, relay, or other inductive load is employed, a counter-
electromotive force may be generated to reduce the useful contact life.
Therefore, be sure to provide contact protection as suggested for the ready
output signal wiring.
TB2
7 NC
8 NO
9
COM
Power supply
TB2
7 NC
8 NO
9 COM
Power supply
8-9 contact
Warning
Closed
state
Normal
Open
state
7-9 contact
Warning
Open
state
Normal
Closed
state