Hitachi HF-W2000 58 Instruction Manual page 144

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#1: The operation of the A contact and B contact are as follows:
A contact (MCALL):
Open when normal, closed when abnormal, open when power is cut.
A contact (PSDOWN,CPUSTOP,WDTTO):
Closed when normal, open when abnormal, open when power is cut.
A contact (GENDO*):
The contact state depends on the user program instruction. Open when power is cut or without program instruction.
B contact (PSDOWN,CPUSTOP,WDTTO):
Open when normal, closed when abnormal, closed when power is cut.
#2: RMTSHTDN and GENDI use the same contact (switched by the RAS software setting). RMTPWRON and GENDI2 use the
same contact (switched by the jumper pin setting). For details, see 6.6 Enabling the Remote Power-On Function.
#3: When you use the RMTPWRON function, ensure that no noise is added to the external contact. If the contact closes for 15 ms
or more during the soft power-off mode due to noise or other reasons, the power might turn on unexpectedly. Note that when
the OS or BIOS is running after the power turns on, the RMTPWRON function is disabled, and the contact can be used as a
GENDI2 input.
5-27
5. SPECIFICATION

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