Справочник Пользователя для National Instruments CFP-2220

© National Instruments Corporation

If you need to clean the controller, wipe it with a dry towel.

Screw-terminal wiring............................ Use copper conductor wire with 

10 mm (0.39 in.) of insulation 
from the ends.

External digital I/O terminals ......... 16 to 28 AWG

Power supply terminals................... 14 to 30 AWG

Torque for screw terminals .................... 0.5 to 0.6 N · m 

(4.4 to 5.3 lb · in.)

Weight .................................................... 278 g (9.8 oz)

Connect only voltages that are within these limits.

V terminal to C terminal ........................ 35 V max, Measurement 

Category I

Measurement Category I is for measurements performed on circuits not 
directly connected to the electrical distribution system referred to as 
MAINS voltage. MAINS is a hazardous live electrical supply system that 
powers equipment. This category is for measurements of voltages from 
specially protected secondary circuits. Such voltage measurements include 
signal levels, special equipment, limited-energy parts of equipment, 
circuits powered by regulated low-voltage sources, and electronics.

Do not connect the system to signals or use for measurements within 

Measurement Categories II, III, or IV.

This product is designed to meet the requirements of the following 
standards of safety for electrical equipment for measurement, control, 
and laboratory use:

•

IEC 61010-1, EN 61010-1

•

UL 61010-1, CSA 61010-1

For UL and other safety certifications, refer to the product label or visit 

ni.com/

certification

, search by model number or product line, and click the appropriate link 

in the Certification column.