Appendix C - Siemens 7sg15 microtapp Operation Manual

Appendix C

Notes
1. Analogue connections show use with a star-connected VT, other arangements can
be used.
2. CT connection is shown on blue phase, any connection can used.
3. IO2 is provided on E12 case sizes only.
IO2 arrangement is for MT-XXX-XJ ordering option.
For MT-XXX-XK ordering option, all Output Contacts on IO2 are Normally-Open.
©2013 Siemens Protection Devices Limited
External Link for Line
Termination - only fitted on
Relay at end of Can-bus
Terminating Resistor is
internal to Relay
see note 3
see note 2
see note 1
VA
VB
VC
ISO Rx
ISO Tx
ISORTS
ISODTR
ISODTR
ISOGND
ISODTR
7SG15 MicroTAPP Description of Operation
PSU
13
14
15
21
23
25
27
26
28
CANH IO1
1
3 CANL
CAN GND
5
7
9 B0
11 B1
13 B2
Digital
15 B3
TPI
17 B4
19 B5
21 COM
23 A+
25 wiper Analogue
TPI
27 A-
IO2
1
3
5
7
9
11
13
15
17
19
21
23
25
27
AN1
23
24
Ir
25
Vr
26
27
Vs
28
FASCIA
2
3
Front serial
4
comms port 2a
5
25 way 'D'
6
connector
7
(female)
20
comms ports
4
5
6
7
8
9
10
11
12
17
19
18
20
2
4
6
8
10
12
14
16
18
20
22
24
26
28
2
4
6
8
10
12
14
16
18
20
22
24
26
28
CPU
IRIG-B
Tx-1
Rx-1
Tx-2b
Rx-2b
Rear F.O.
Chapter 1 Page 37 of 38