Installation

 

1

Earth

 

 

3

Ground

10

19

2

Hot

AC/DC

 

11

20

 

L1

Line

 

Neutral

12

21

Voltage

 

L2/N

 

 

4

13

22

 

 

 

 

 

5

14

23

 

 

 

 

 

6

15

24

 

 

 

 

 

7

16

25

 

 

 

 

 

8

17

26

 

 

 

 

 

9

18

27

 

 

 

1PROTECTIVE BONDING (grounding) of this controller and the enclosure in which it is installed, shall be in accordance with National and local electrical codes. To minimize electrical noise and transients that may adversely affect the system, supplementary bonding of the controller enclosure to local ground using a No. 12 (4 mm2) copper conductor is recommended. Before powering the controller, see “Prelimnary Checks” in this section of the Product Manual.

2It is the user’s responsibility to provide a switch and non-time delay (North America), quick-acting, high breaking capacity, Type F (Europe), 1/2A, 250V fuse(s), or circuit- breaker for 90-264 Vac applications; or 1 A, 125 V fuse or circuit breaker for 24 Vac/dc applications, as part of the installation.

3CAUTION Applying 90-264 Vac to an instrument rated for 24 Vac/dc will severely damage the instrument and is a fire and smoke hazard.

Figure 2-5 Mains Power Supply

22

UDC2500 Universal Digital Controller Product Manual

4/07

Page 36
Image 36
Honeywell UDC2500 manual Earth Ground Hot, Ac/Dc, Line Neutral Voltage L2/N