Owner’s Manual
E2010 THYSSENKRUPP ELEVATOR Printed in USA February, 2010
Door Protection-4
Trouble-Shooting LEDs
There are two red trouble-shooting LEDs positioned near the
top of the TX detector. The states they can indicate are shown
below.
Figure 7 - Troubleshooting LEDs
LED Status Possible Cause
OFF No Power
OFF
FLASHING TX/RXconnectionopencrcuit
OFF
ON Triggered state,
OFF obstruction between detec tors
ON Normal scanning state
ON
SYSTEM CONNECTION
For trouble-free installation we recommend installing the 640
system with a Memco 280 power supply. However in many
situations the 640 c an be directly connected to the lif t
controller or door operator.
Using a Memco Power Supply
A Memco power supply eliminates conc ern about the
electrical environment into which the 640 is being installed
and simplifies wiring. (See Figure 8.)
Figure 8 - MEMCO Connections
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