Type B Vital Relays - Alstom

Installation
Table 3–3. Microchron II Timer Relay (DC) Installation Procedure (Cont.)
Step
Procedure
4 CAUTION
To prevent possible damage to the Microchron II Timer Relay, it is
necessary to use a filter unit when the timer is to be operated from
unfiltered full-wave, rectified AC, unless there are standby
batteries. If the timer is powered with unfiltered, rectified AC
voltage without a filter unit, it will not operate and could possibly
damage the timer.
If the power source is unfiltered AC, then follow Step 5 to install a filter unit on
the relay.
For filtered DC or filtered rectified AC, go to step 6.
5 Install a filter board onto the relay plugboard as shown:
(+)
6E
3E
52 51
TE
R1
A
CR1
+
C1
TYPICAL CIRCUIT
4E
(–)
66
56
46
65
55
45
64
54
44
63
53
43
62
52
42
FILTER BOARD 58496-116-01
includes 3E-4E mounting
hardware and 3 connectors
61
51
41
CR1 A TO 52
6D
6C
C1
R1
1C
1D
TO 51
4E
3E
TO 6E
SOLDERTAB
SIDE VIEW
REAR VIEW
6E
4E
3E
1E
NOTE:
PLUGBOARD KITS
P/N 59686-007-14 FOR CRIMP TERMINALS
P/N 59686-007-12 FOR SOLDER TERMINALS
P1457, Rev. Nov/07 3–8 Alstom Signaling Inc.