Delta AH500 Hardware Operation Manual page 274

4.13.4.1 Wiring Input Terminals
The input signal is the direct-current power input. Sinking and sourcing are the current driving capability of a
circuit. They are defined below.

Sinking
Direct current
The current flows into the common terminal S/S.

Sourcing
Direct current
The current flows from the common terminal S/S.

Wiring the differential input terminals
The direct-current signals ranging in voltage from 5 V to 24 V can pass through the high-speed input
terminals X0.0+~X0.3+ and X0.0-~X0.3- on AH10PM-5A, and X0.0+~X0.3+, X0.0-~X0.3-, X0.8+~X0.9+,
and X0.8-~X0.9- on AH15PM-5A. (Only 24 VDC signals can pass through the other input terminals on
AH10PM-5A and AH15PM-5A.) The frequency of input signals can be up to 200 kHz.
If the frequency of input signals is less than 50 kHz and there is not much noise, these high-speed input
terminals can be connected to the direct-current power supply whose voltage is in the range of 5 V to 24
V. The wiring diagrams for AH10PM-5A are shown below.
Sinking:
Equivalent circuit of the input circuit
I/O
X0.8
S/S
Equivalent circuit of the input circuit
I/O
X0.8
S/S
C h a p t e r 4 I n s t a l l i n g H a r d wa r e a n d W i r i n g
Internal
circuit
Internal
circuit
4 - 1 0 7