Keithley KPCI-PDISO8A, Руководство пользователя, Страница: 29 / 72

KPCI-PIO32IOA and KPCI-PDISO8A User’s Manual Installation 3-13
Input and output connections
Figure 3-4 shows typical input and output connections for one channel. IPnA and IPnB are the
control inputs, while OPnA and OPnB are the switching outputs (n is the channel number). See
Table 3-2 for terminal designations).
Signal voltages are as follows:
• Maximum control input voltages are: ±60V DC (logic high); ±1V DC (logic low).
• Outputs can switch both DC voltages (±60V DC maximum) and AC voltages (30V RMS
maximum) with a maximum load current of 350mA. An output relay is turned on (closed)
when the corresponding control input is placed at a logic high.
NOTE DC control inputs require approximately 80
µ
A at 2.5V input and
approximately 3.5mA at 60V input.
Figure 3-4
Typical KPCI-PIO32IOA and KPCI-PDISO8A input/output connections
Vec (Source)
Optional
Switch
IPnA*
IPnB*
KPCI
Board
External
Source
Ground
LOAD
(Motor, Relay, etc.)
OPnA*
OPnB*
Control
Inputs
Switching
Outputs
*n = Channel Number