Keri Systems LC-508 Wiegand Elevator Control - Manual (Page 16)

Wiegand Elevator Control Panel
2305 Bering Drive 01942-001 Rev. D
San Jose, CA 95131 USA
(800) 260-5265 (408) 435-8400 FAX (408) 577-1792
Web: www.kerisys.com E-mail: [email protected]
Page 16 of 24
Quick S
tart Guide
LC-502W/LC-508W
5.2.4 Earth Ground and Power
The LC-502W panel requires 12 VDC power at 750 mA. You must make a quality earth ground
connection to the controller prior to connecting the DC power lines. The earth ground provides
protection for the controller and ensures the best possible operating conditions. Possible sources for
earth ground are a ground rod, a cold water pipe, a steel building frame, the electrical system
ground at the breaker/fuse box, or the telephone system ground. Make the earth ground and power
connections per the information in Table 6 and Figure 10.
Figure 10: Earth Ground and Power Connections
5.3 LC-508W Wiring Connections
The connections between the individual LC-500W/SB-500 controllers in the LC-508W Elevator
Control panel are already wired. All user connections are brought out to three terminal strips.
• one strip on the left side of the enclosure for all Floor Control Relay connections
• one strip on the bottom right of the enclosure for the controller power, the controller network
daisy-chain input, and the Wiegand reader daisy-chain input connections
• one strip on the bottom left of the enclosure for the controller network daisy-chain output and
the Wiegand reader daisy-chain output connections
Figure 11 on page 17 provides a diagram of the Wiegand reader terminal strip connections.
Table 6: Earth Ground and Power
Connections
TB-2 Pin Description
1 + 12 VDC Power Line
2 - 12 VDC Power Line
3 Earth Ground