TDSi EXcel4 - Fail-Open Drawing (Less than 2 A Lock); Connecting a DC Lock Rated at more than 2 A; Figure 8 - Fail Open Drawing; Figure 9 - DC Lock Release Diagram

EXcel4 Controller Page 16
2.7.3 Fail-open drawing (Less than 2A lock)
Com
N/C
53
52
34
33
47
46
20
19
Door
1
Door
2
Door
3
Door
4
ACU Connections
for a fail Open Lock
Release
Lock Release
Suppressor
Shield or Ground wire
should be connected to
lock release casing if
possible
To Separate appropriate
Power Supply
Shield or Ground wire
must NOT be connected to
ACU chassis if lock
release is mounted on a
grounded metal surface
Connecting a fail open (i.e. power locked)
Figure 8 - Fail open drawing
2.7.4 Connecting a DC Lock Rated at MORE than 2A
Cable screen must NOT
be connected to
controller chassis if lock
is grounded
Lockstrike
Relay pole
Relay n/oRelay pole
Fail
Locked
Fail
Open
Lockstrike
Relay n/c
To
Power
Supply
Lock release
Suppressor
Suppressor
Coil
Coil
pole
n/o
Secondary
Relay
Figure 9 - DC lock release diagram