Areva MiCOM P225 Quick start guide

MiCOM P225
Motor Protection Relay
Technical Guide
P225/EN T/B11

Technical Guide P225/EN T/B11
MiCOM P225 Page 1/2
MOTOR PROTECTION RELAY
MiCOM P225
CONTENT
Connection Diagram P225/EN CO/B11
Technical Data P225/EN TD/B11
User Guide P225/EN FT/B11
Menu of the HMI P225/EN HI/B11
Commissioning and Maintenance P225/EN CM/B11
Communication P225/EN CT/B11
Default Setting Value P225/EN SV/B11
Installation Guide P225/EN IN/B11
Test Report P225/EN RS/B11

P225/EN T/B11 Technical Guide
Page 2/2 MiCOM P225
BLANK PAGE

Connection Diagrams P225/EN CO/B11
MiCOM P225
CONNECTION DIAGRAMS

Connection Diagrams P225/EN CO/B11
MiCOM P225 Page 1/12
CONTENT
1. CONNECTION DIAGRAMS 3
1.1 MiCOM P225 typical connection 3
1.2 Typical application diagram 4
2. CONNECTION 5
2.1 Earth connection 5
2.2 Auxiliary power 5
2.3 Current inputs 5
2.4 Voltage measurement input 5
2.5 Binary inputs 5
2.6 Output relays 5
2.7 Front port connection (RS232) 6
2.8 RS485 rear port 7
2.8.1 Description 7
2.8.2 Connection 7
2.8.3 RS485 cable 8
2.8.4 Protocol converter: RS232 -> K-Bus 8
2.8.5 RS232 / RS485 converter 8
2.9 Analogue outputs 8
2.10 RTDs 9
2.11 Thermistors 10
2.11.1 PTC type thermistors 11
2.11.2 NTC type thermistors 11

P225/EN CO/B11 Connection Diagrams
Page 2/12 MiCOM P225
BLANK PAGE

Connection Diagrams P225/EN CO/B11
MiCOM P225 Page 3/12
1. CONNECTION DIAGRAMS
1.1 MiCOM P225 typical connection
A
uxiliar
y
v
olta
g
e
i
n
p
ut L1
Phase rotatio
n
o
o
C
B
C
T shortin
g
links make before (b) and (c) disconnect
(
3) Earth connection are t
y
pical onl
y
(
2) CT connection are t
y
pical onl
y
N
o
t
a
:
(
1
)
(
c
)
(a
)
a
a
(
b
)
19
23
21
{
S
hort terminal break before
(
c
)
L
on
g
terminals
P
ro
g
rammable
P
ro
g
rammable trippin
g
W
atch do
g
(4)
o
utput rela
y
3
4
26
24
22
33
+
-
{
Modu
l
e
t
e
rmin
a
l
b
l
oc
k
s
(
with inte
g
ral case earth link)
v
i
e
w
ed
fr
o
m r
ea
r
S
peed switch si
g
nal
i
n
p
ut L2
P
ro
g
rammable
i
n
p
ut L3
P
ins terminals (pcb t
y
pe)
(
d
)
A
lternative :The earth current in
p
ut is connected to the sommation of the three
p
hase CTs.
A
lternative : Connection to 2
p
hase CTs + a core balanced CT.
C
A
B
P2
S
2
S
1
S
P1
5
A
48
5
A
47
46
45
44
5
A
5
A
43
42
41
56
1
A
1
A
55
5
4
53
5
2
1
A
5
1
1
A
50
49
{
RL2
RL
1
L
L
10
8
12
2
4
{
6
6
{
WD
36
35
37
37
R
L
3
18
14
16
R
L
5
RL4
9
7
{
5
1
3
{
(
4) The MICOM P220 rela
y
is shown with power suppl
y
off
( : Link terminals 30 and 32 if the relay
2
9
RS
4
85
c
omm
u
ni
ca
tion
is
co
nn
ec
t
ed
a
t th
e
e
n
d
o
f th
e
-
*
3
2
3
1
+
30
p
ort
c
onn
ec
tion
R
S 485 bus
)
.
(
5) The shieldin
g
is bonded to the earth point located next to the connector.
(
6) Important : the analo
g
ue output option shall be used either in active source mode or in passive source mode
+
-
+
-
+
-
T
he earth current in
p
ut is connected to a core balanced CT.
o
utput rela
y
o
utput re
l
a
y
P
ro
g
rammable
P
ro
g
rammable
o
utput rela
y
o
utput rela
y
P
ro
g
rammable
i
n
p
ut L4
P
ro
g
rammable
P
ro
g
rammable
i
nput L5
C
ase earth
P
22
5
M
i
CO
M
2d
2b
2z
4d
4b
4
z
co
mm
o
n
R
TD
3
RTD2
RTD1
G
reen connector
R
TD
5
R
TD
6
10
d
RTD4
If
10 RTD option :
(
6
)
If 2 analogue output option :
If 3 thermistors option
:
n
28
b
28
z
2
-24 V
o
lt
+
-
T
h
e
rmi
s
t
o
r2
ac
tiv
e
sou
r
ce
m
ode
Analogue output 1
g
28
b
28
d
{
A
nalo
g
ue output 1
4b
4d
T
h
e
rmi
s
tor1
2b
2d
RTD7
R
TD
8
R
TD
9
R
TD1
0
6
z
6
b
6
d
8
z
8
b
8
d
10
b
10
z
12z
1
2
b
1
2
d
14z
1
4
b
1
4
d
16
z
16
b
16
d
18
z
18b
18
d
20
z
20
b
20
d
40
39
-
25
+
T
hermistor
3
6
d
6
b
V
olta
g
e input
{
2
-24 V
o
lt
3
2b
3
2b
3
2z
i
n
p
ut L6
P
ro
g
rammable
c
ommon
c
ommon
co
mm
o
n
co
mm
o
n
c
ommon
c
ommon
co
mm
o
n
co
mm
o
n
c
ommon
passive source mode
Analogue output 2
id
ac
tiv
e
sou
r
ce
m
ode
C
ase earth
P
0
22
8
EN
a
2b
4b
C
ase earth (5)
8
d
2d
4d
8
z
4z
2z
S1
S
2
S
2
P2
S
1
P1
5
A
5
A
5
A
5
A
1
A
1
A
48
47
46
45
44
43
42
41
56
55
5
4
5
2
53
1
A
1
A
50
5
1
49
47
55
53
3
49
5
1
37
45
43
41
39
35
33
29
31
48
56
5
4
5
2
50
38
3
46
44
42
40
4
36
3
34
3
32
3
30
3
24
27
28
26
2
1
22
20
16
18
14
7
9
5
3
8
12
10
6
4
C
A
B
A
B
C
S
2
A
P2
S1
S1
1
S
2
S
1
S
P1
41
5
A
5
A
43
42
1
A
1
A
56
55
5
4
1
A
1
A
53
5
2
5
1
50
49
45
48
5
A
5
A
47
46
44
-
+
+
-
+
-

P225/EN CO/B11 Connection Diagrams
Page 4/12 MiCOM P225
1.2 Typical application diagram
27
+
-
Pro
g
rammabl
e
In
p
ut L
6
Mi
CO
M P22
5
2
5
1
9
17
1
3
1
5
1
3
5
8
1
0
12
6
4
2
22
2
4
33
34
-
+
-
+
-
+
-
+
55
47
4
8
56
41
4
9
42
50
4
3
51
44
52
4
5
53
4
6
54
5A
1A
36
35
37
14
1
6
1
8
3
2
b
30
d
/z
2
8
2
6
+
-
+
-
32
31
-
+
+
-
+
Pro
g
rammabl
e
In
p
ut L
4
Pro
g
rammabl
e
In
p
ut L
3
trippin
g
Pro
g
rammabl
e
Out
p
ut RL
3
Pro
g
rammabl
e
Watchdo
g
Out
p
ut RL
4
Pro
g
rammabl
e
Pro
g
rammabk
e
Out
p
ut RL
2
C
ore balanced
CT
CT
p
hase
A
CT
p
hase
B
CT
p
hase
C
tem
p
eratur
e
S
tato
r
F
use
A
B
C
C
ontactor coi
l
V
aux
On
Of
f
Emer
g
ency sto
p
Kl
a
x
on
Si
g
nallin
g
lam
p
Auxiliar
y
Suppl
y
V
aux
Emer
g
ency startu
p
Ext
e
rn
a
l r
eset
F
use
b
low
n
5
2
a
Auxiliar
y
A
A
C
ontacto
r
In
p
ut L
1
Out
p
ut RL
5
Pro
g
rammabl
e
Analo
g
ue outpu
t
In
p
ut L
2
V
aux
C
ommunicatio
n
10 RTD's in
p
ut
s
(
g
reen connector
)
P
C/
PL
C
su
p
erviso
r
Am
b
i
e
n
t
tem
p
eratur
e
Bearin
gs
tem
p
eratur
e
M
o
t
or
14
PL
C
Si
g
nallin
g
Si
g
nallin
g
P0
2
3
1
ENa
In
p
ut L
5
2
3
-
Pro
g
rammabl
e
21
+
PL
C
Analo
g
ue outpu
t
+
b
-
Load bearin
gs
tem
p
eratur
e
7
1
1
9
4
0
39
Rotation
p
has
e
C
B
A
Line A-Line
C
V
T
Th
e
rm
a
l
s
t
a
t
e
v
a
l
ue
r
eset
used
f
or
s
t
a
rt inhi
b
iti
o
n
p
ur
p
ose
output rela
y
THE MiCOM P225 IS SHOWN WITH POWER SUPPLY OFF.

Connection Diagrams P225/EN CO/B11
MiCOM P225 Page 5/12
2. CONNECTION
The rear face of the MiCOM P225 relay comprises at least 2 connectors. The relay may
have an optional green third connector dedicated to the connection:
− of 10 temperature RTD sensors or 3 thermistors
− of 2 analogue outputs.
2.1 Earth connection
The case shall be earthed according to the local standards.
2.2 Auxiliary power
The auxiliary power for the MiCOM P225 relay can be either Direct (range 24 - 60 Vdc, 48-
150Vdc, 130-250Vdc) or Alternating (100-250Vac –50/60Hz). The range of voltage is
specified on the relay indicator plate under the top flap of the front face. The power should
be connected to terminals 33 and 34 only.
A minimum 1.5mm² wire size is recommended.
2.3 Current inputs
The MiCOM P225 relay has 4 analogue inputs for phase and earth currents. The nominal
value of current of these measuring inputs is either 1 Amp or 5 Amp (according to the wiring
diagram). The operator can, for the same relay, mix the 1 and 5 Amp inputs (phase and
earth).
A minimum 2.5mm² wire size is recommended.
2.4 Voltage measurement input
The MiCOM P225 relay has one voltage input for phases A and C. The nominal value of
that input is either comprised between 57 and 130 Volts, or between 220 and 480 Volts.
A minimum 1mm² wire size is recommended.
2.5 Binary inputs
The MiCOM P220 relay has six opto-insulated logic inputs of which five are programmable.
Each input has its own polarity and it shall be powered :
− with a dc voltage (relay auxiliary voltage ranges : 24-60 Vdc and 48-150 Vdc),
− with either a dc voltage or an ac voltage (relay auxiliary voltage range : 130-250
Vdc/100-250 Vac).
Please refer to Chapter TD – Technical Specifications – of this guide for more informations.
The control and signalling functions to which the programmable logic inputs are assigned
can be selected by means of the AUTOMAT. CTRL menu.
A minimum 1mm² wire size is recommended.
N.B.: A 52a contact (CB auxiliary contact: open when CB is opened)
shall be wired to the binary input n°1 (terminals 22-24).
2.6 Output relays
Six output relays are available on the MiCOM P225 relay. Five relays are programmable, the
last relay being assigned to the signalling of an equipment fault (WATCH DOG). All these
relays are of the changeover type (1 common, 1 normally opened, 1 normally closed).
The protection and control functions to which these relays are assigned can be selected via
the AUTOMAT. CTRL menu.

P225/EN CO/B11 Connection Diagrams
Page 6/12 MiCOM P225
2.7 Front port connection (RS232)
The front communication port is provided by a 9-pin female D-type connector located under
the bottom hinged cover. It provides RS232 serial data communication (asynchronous
RS232 connection according the IEC60870 requirements) and is intended for use with a PC
locally to the relay (up to 15m distance).
The relay is a Data Communication Equipment (DCE) device. Thus the pin connections of
the relay’s 9-pin front port are as follows:
Pin no. 2 Tx Transmit data
Pin no. 3 Rx Receive data
Pin no. 5 0V Zero volts common
The relay should be connected to the serial port of a PC, usually called COM1 or COM2.
PCs are normally Data Terminal Equipment (DTE) devices which have a serial port pin
connection as below (if in doubt check your PC manual):
Pin no. 2 Rx Receive data
Pin no. 3 Tx Transmit data
Pin no. 5 0V Zero volts common
For successful data communication, the Tx pin on the relay must be connected to the Rx pin
on the PC, and the Rx pin on the relay must be connected to the Tx pin on the PC.
Therefore, providing that the PC is a DTE with pin connections as given above, a ‘straight
through’ serial connector is required, i.e. one that connects pin 2 to pin 2, pin 3 to pin 3, and
pin 5 to pin 5.
The cable between the MiCOM relay and the PC is a standard RS232 shielded cable (male
connector on the MiCOM relay side, usually female connector on PC side).
MiCOM P225 Relay
Laptop
P0232ENa
Serial communication port (COM1 or COM2)
Serial data connector (up to 15m)
Battery 9 pin front port
FIGURE 1 - PC<->FRONT PORT CONNECTION

Connection Diagrams P225/EN CO/B11
MiCOM P225 Page 7/12
2.8 RS485 rear port
2.8.1 Description
The rear RS485 interface is isolated and is suitable for permanent connection whichever
protocol is selected. The advantage of this type of connection is that up to 31 relays can be
‘daisy chained’ together using a simple twisted pair electrical connection.
2.8.2 Connection
The communication connection (port RS485) is assigned on terminals 31-32 according to the
MiCOM P225 relay wiring diagram.
30
32
34
36
38
40
42
44
46
48
50
52
54
56
29
31
33
35
37
39
41
43
45
47
49
51
53
55
4
6
8
10
18
20
1
3
5
7
9
1413
17
19
22
24
26
28
21
23
25
27
1615
12
11
2
Rear terminals
communication
connections
P0180ENa
FIGURE 2 - RS485 CONNECTION
The total communication cable from the master unit to the farthest slave device is a spur,
and no branches may be made from this spur. The maximum cable length is 1000m and the
maximum number of devices per spur is 31. Polarity is not necessary for the 2 twisted wires.
The transmission wires should be terminated using a 150 Ωresistor at both extreme ends of
the cable. To this effect, link terminals 30 and 32, if the relay is connected at the end of the
RS485 bus, as indicated in figure 3.
Terminal 29 of each MiCOM relay shall be connected to the RS485 cable shielding, as
mentioned figure 3.
For only one MiCOM relay connected to the RS485 bus, link terminal 29 to the case earth as
indicated in figures 2 and 3.
For one and only
MiCOM relay
connected to the
RS485 bus,
terminal 29
is linked to
the case earth
RS485 bus
Shielding
2 core screened cable
Terminal 29 shall be
connected to the
RS485 cable shield
At the extreme end of the
RS485 bus, link terminals
30 and 32
Relay connected
at the extreme
end of the RS485 bus
P0181ENa
FIGURE 3 - RS485 CONNECTION

P225/EN CO/B11 Connection Diagrams
Page 8/12 MiCOM P225
2.8.3 RS485 cable
It is recommended that a 2 core screened cable is used with a maximum total length of 1000
m or 200 nF total cable capacitance.
Typical specification:
• Each core: 16/0.2 mm copper conductors, PVC insulated
• Nominal conductor area: 0,5 mm2per core
• Screen: Overall braid, PVC sheathed
• Linear capacitance between
conductor and earth: 100 pF/m
2.8.4 Protocol converter: RS232 -> K-Bus
KITZ 101,102 and 201 can be used.
Configuration is: 19200 bauds, 11 bits, full duplex.
2.8.5 RS232 / RS485 converter
The following RS232/RS485 converters have been tested by AREVA T&D:
• RS_CONV1 converter suitable for a short length and for up to 4
connected relays
• RS_CONV32 industrial converter, suitable for up to 31
connected relays.
2.9 Analogue outputs
The MiCOM P225 relay can include two optional analogue outputs assigned on the 28d-28b-
28z and 32d-32b-32z terminals (green coloured connector) which allow certain data and
measuring values to be reassembled on a current loop towards an automatic controller. The
selections of the type of analogue outputs (options: 0-20 mA or 4-20 mA) and of the type of
data to be reassembled are effected in the CONFIG. SELECT submenu.
It is recommended that a 2-core screened cable is used. The cable shielding shall be
bonded to the MiCOM relay case earth connector.
N.B.: The analogue outputs shall be used either in active source mode
(terminals 28d-28b et 32d-32b), or in passive source mode (terminals
28z-28b et 32z-32b). This is an exclusive OR logic.
(1) If the current loop monitoring device is
not earthed (floating potential), the
cable shielding shall be bonded to the
MiCOM relay case earth connector. In
the other case, do not connect the
cable shielding.
(2) A multi 2 core screened cable may be
used (1 shielding common for all the
2 core wires).
(1)
(1)
Current loop
monitoring device
0-20 mA
or 4-20 mA
Current loop
monitoring device
0-20 mA
or 4-20 mA
Shielding
P0233ENa
Shielding
Screened cable (2)
Earthing
Case earth
connector
MiCOM P225
green connector
28d
28b
32d
32b
FIGURE 4 - CONNECTION FOR ANALOGUE OUTPUT IN ACTIVE SOURCE MODE

Connection Diagrams P225/EN CO/B11
MiCOM P225 Page 9/12
2.10 RTDs
The P225 relay can, as an option, be connected to 10 RTD's, which enables it to monitor
temperature (PROTECTION G1 or PROTECTION G2 menu). The choice of these types of
RTD sensors is effected in the CONFIG. SELECT submenu.
It is recommended that connections between the relay and the RTD's are made using a 3-
core screened cable with a total resistance less than 25 Ωin case of PT100, Ni100 or Ni120
RTD. For Cu10 RTD, the cable total resistance shall be less than 2.5 Ω. The wire also
should have a minimum voltage rating of 300 Vrms. Impedance of cores connected to both
terminals 2d and 2b (see figure 5) shall be of identical value. The cable shielding shall be
bonded to the MiCOM relay case earth connector.
Typical specification:
• Each core: 7/0.2 mm copper conductors heat
resistant PVC
• Nominal conductor area: 0.22 mm2per core
• Screen: Nickel-plated copper wire braid heat
resistant PVC sheathed.
• Conductor impedance: Strictly identical for 2 of the 3 cores.
Accuracy difference less than 1%
2z
Earthing
Shielding
Screened cable
RTD1
2b
2d
MiCOM P225
green connector
P0429ENa
Case earth
connector
FIGURE 5 - RTD CONNECTION

P225/EN CO/B11 Connection Diagrams
Page 10/12 MiCOM P225
2.11 Thermistors
The P225 relay can, as an option, be connected to 3 thermistors which allows it to protect
against over-temperature conditions (PROTECTION G1 or PROTECTION G2 menu). The
choice between these types of thermistor is effected in the CONFIG. SELCT submenu.
It is recommended that connections between the relay and the thermistors are made using a
screened 2-core cable with a total resistance less than 100 Ω. The wire also should have a
minimum voltage rating of 300 Vrms. Impedance of the 2 cores shall have similar values.
The cable shielding shall be bonded to the MiCOM relay case earth connector.
Typical specification:
• Each core: 7/0.2 mm copper conductors heat
resistant PVC
• Nominal conductor area: 0.22 mm2per core
• Screen: Nickel-plated copper wire braid heat
resistant PVC sheathed.
2z
Earthing
Shielding
Screened cable
Thermistor 1
2b
2d
MiCOM P225
green connector
P0430ENa
Case earth
connector
FIGURE 6 - THERMISTOR CONNECTION

Connection Diagrams P225/EN CO/B11
MiCOM P225 Page 11/12
2.11.1 PTC type thermistors
For PTC type thermistor, it is usually possible to connect to the same input several
thermistors in series as indicated in figure 7.
P0431ENa
2d
2b
4d
4b
6d
6b
MOTOR
Thermistor placed on
phase A winding
Thermistor placed on
phase C winding
Thermistor placed on
phase B winding
Thermistors placed on
the motor mechanical
bearings
Thermistor input 1
Thermistor input 2
MiCOM P225
green connector
Thermistors placed on
the driven load
mechanical bearings
LOAD
Thermistor input 3
FIGURE 7 - PTC THERMISTORS CONNECTED IN SERIES
2.11.2 NTC type thermistors
For NTC type thermistors, it is recommended that only one thermistor is connected to each
MiCOM relay input.
Exceptionally, certain NTC type thermistors can be connected in parallel to the same input.
However, we do not recommend such a connection.

P225/EN CO/B11 Connection Diagrams
Page 12/12 MiCOM P225
BLANK PAGE

Technical Specifications P225/EN TD/B11
MiCOM P225
TECHNICAL
SPECIFICATIONS