Speed monitor interfaces, Table 3 speed monitor interface group 1, Trusted – Rockwell Automation T8846 Trusted Speed Monitor IFTA (SIFTA) User Manual
Page 12: Speed monitor ifta t8846
Trusted
TM
Speed Monitor IFTA T8846
Issue 2 Apr 10
PD-T8846
12
3.2. Speed Monitor Interfaces
This section details the interfaces between the T8846 SIFTA and the Trusted T8442 Speed Monitor.
There are three 20 way connectors on the FTA which provide the interface to the Trusted T8442
Speed Monitor. Each connector is dedicated to one speed input group and mates directly with the
Trusted TC-801 cable assembly.
Refer to Figure 3 for the location of the connectors.
Table 3 Speed Monitor Interface Group 1
Interface Pin Description
SK2
1
Group 1 VField (A) fused output
SK2
2
Group 1 VField (B) fused output
SK2
3
Not Connected
SK2
4
Group 1 Channel 1 MID Bias
SK2
5
Group 1 Channel 1 Passive (A) output
SK2
6
Group 1 0V (ground)
SK2
7
Group 1 Channel 1 Passive (B) output
SK2
8
Chassis Ground
SK2
9
Not Connected
SK2
10
Group 1 Channel 2 MID Bias
SK2
11
Group 1 Channel 2 Passive (A) output
SK2
12
Group 1 0V (ground)
SK2
13
Group 1 Channel 2 Passive (B) output
SK2
14
Chassis Ground
SK2
15
Not Connected
SK2
16
Group 1 Channel 3 MID Bias
SK2
17
Group 1 Channel 3 Passive (A) output
SK2
18
Group 1 0V (ground)
SK2
19
Group 1 Channel 3 Passive (B) output
SK2
20
Chassis Ground