EXcel4 Controller
Page 15
2.7
Fail-locked
This kind of lock requires power to unlock:
EXcel terminal Lock connection
20
Door 1 Lock relay Common
pole
21
Door 1 Lock relay n/o
34
Door 2 Lock relay Common
pole
35
Door 2 Lock relay n/o
47
Door 3 Lock relay Common
pole
48
Door 3 Lock relay n/o
53
Door 4 Lock relay Common
pole
54
Door 4 Lock relay n/o
2.7.1
Fail-locked Drawing (Less than 2A lock)
N/O
Com
54
53
35
34
48
47
21
20
Door
1
Door
2
Door
3
Door
4
ACU Connections
for a fail-locked
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 locked (i.e. powered -open)
Figure 7 - Fail locked drawing
2.7.2
Fail-open
This kind of lock is locked when power is applied:
EXcel terminal Lock connection
19
Door 1 Lock relay n/c
20
Door 1 Lock relay Common pole
33
Door 2 Lock relay n/c
34
Door 2 Lock relay Common pole
46
Door 3 Lock relay n/c
47
Door 3 Lock relay Common pole
52
Door 4 Lock relay n/c
53
Door 4 Lock relay Common pole
