PCI-7250/7251
8/16/24/32 Channels Relay
& Isolated Digital Input Cards
Features
32-bit PCI bus, plug and play
8 Relay actuator outputs
8 Photo isolated digital inputs
LED's indicators show activated relays
On-board relay driving circuits
Jumper Selectable for AC/DC isolated input
On-board digital input signal conditioning
circuits
Extendable to 32 Relays & 32 DI using
three PCI-7251 board
Specifications
Relay Output
Number of relays: 8
Relay type: Single-pole, double-throw (SPDT)
Output channels:
Relay # 0~3 are Form C (includes normally
open and close contacts)
Relay # 4~7 are Form A (includes normally
open only)
LED indicates each relay's ON/OFF status
for monitoring.
Contact Type: 120VAC
@ 0.5A or 24VDC @
1A
Contact resistance: Bifurcated
Relay ON/OFF time: 8 ms typical
Coil voltage: +5V @ 33mA for each relay
Isolated Inputs
Number of channels: 8
Photo isolators: PC-814
Input signal type: AC or DC
AC: don't care polarity
DC: with polarity
Input voltage range: 0 ~ 24VDC
or 24VAC 50 ~ 1,000Hz
Input Logic Level:
Logic Low: 0~2.4V
Logic High: 3~24V
Input filters: RC low pass filter
Input impedance: 1.2 KŁ[
Isolation voltage: 5,000 Vrms channel-to-system
power/ground
Response time:
20 Łg sec without AC Filter
2.2 ms with AC Filter
General Specifications
Operating temperature: 0° ~ 60°C
Storage temperature: -20° ~ 80°C
Humidity: 5~90%, non-condensing
Power consumption:
PCI-7250
+5VDC: 140mA typical
PCI-7251
+5VDC: 125mA typical
PCB dimensions:
PCI-7250: 162 mm x 107 mm
PCI-7251: 141 mm x 102 mm
Termination Boards
Ordering Information
PCI-7250
8 Relay & 8 Isolated DI Card
PCI-7251
Extension Card for PCI-7250
Note: The above products are shipped with
software development kit for DOS/WIn-95/98/NT/2000, PCIS-LVIEW and PCIS-VEE.)
View Manual View Specifications from Catalog
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