Rockwell Automation 825 Electronic Control and Protection System - Manual (Page 3)

Installations and Dimensions
see page 9, Fig. 6 / 7 / 8
Wiring the Main Circuit
see page 8
825-M* and 825-MCM*
without main current
transformer
Fig. 1
825-M* and 825-MCM* with
main current transformer
Fig. 2
825-M* and 825-MCM* with two-
phase main current transformer
and summation current trans-
former
Fig. 3
Summation current transformer:
Output current 5-500 mA, Connection k / l
Input module type:
825-MCM2
825-MCM20
825-MCM180
825-MCM630
825-MCM630N
Option 825-MMV
Fig. 5 a)
1T1 / 1T3 / 1T2...6T1 / 6T3 / 6T2
Inputs PT100 # 1...PT100 # 6
Temperature monitoring stator
winding and motor bearings.
Leads up to 10 m twisted, over
10 m screened.
Connect screen to xT2.
7T1 / 7T3 / 7T2
Input PT100 # 7
Temperature monitoring of coolant.
Leads up to 10 m twisted, over
10 m screened.
Connect screen to xT2.
Option 825-MLV
Fig. 5 b)
53 / 54
Auxiliary relay Aux # 4:
IEC 400 VAC / 125 VDC
UL / CSA 240 VAC / 125 VDC
I
th
= 4 A
63 / 64
Auxiliary relay Aux # 5:
IEC 400 VAC / 125 VDC
UL / CSA 240 VAC / 125 VDC
I
th
= 4 A
L1 / L2 / L3
Connection of phase voltage of
main circuit for phase sequence
and phase failure protection.
Series fuse 100 mA fast.
Above 400 VAC
(UL / CSA 240 VAC)
with voltage trans-
former.
Option 825-MST
Fig. 5 c)
23 / 24
Auxiliary relay Aux # 1:
IEC 400 VAC / 125 VDC
UL / CSA 240 VAC / 125 VDC
I
th
= 4 A
33 / 34
Auxiliary relay Aux # 2:
50 VAC / 30 VDC
I
th
= 4 A
43 / 44
Auxiliary relay Aux # 3:
50 VAC / 30 VDC
I
th
= 4 A
I+ / I-
Analog output of thermal motor
load, motor temperature (PT100),
motor current
4...20 mA, 0...300 W
- Indicating meter 825-MTUM
- PLC input
- Recorder
Leads up to 100 m twisted, over
100 m screened.
Y31 / Y32
Control Input # 1:
24 VDC / 24 VAC
Y41 / Y42
Control Input # 2:
24 VDC / 24 VAC
T1 / T2
PTC connection, max. 6 PTC in
series.
Leads up to 100 m twisted, over
100 m screened.
Connect screen to T2.
m 200 300 400 600 1000
mm 20.5 0.75 1 1.5 2.5
k / l
Input to summation current
transformer 5...500 mA.
Basic unit 825-M*
Fig. 5 d)
A1- / A2+
AC supply:
Voltage as printed on AC module,
see 1 Fig. 4.
DC supply:
Voltage as printed on DC module,
see 1 Fig. 4.
Note potential.
Y11 / Y12:
Emergency start of thermal trip
with push button or key-switch.
Y11 / Y13
Means of blocking settings with
jumper, push button or key-switch.
Y21 / Y22
Remote reset with push button or
key-switch.
13 / 14
Alarm contact:
IEC 400 VAC / 125 VDC
UL / CSA 240 VAC / 125 VDC
I
th
= 4 A
95 / 96 / 97 / 98
Main relays:
95 / 96 NC contact
97 / 98 NO contact
IEC 400 VAC / 125 VDC
UL / CSA 240 VAC / 125 VDC
I
th
= 4 A
When the main relay
MR is connected in the
non-fail-save mode, then
the terminal markings on
the unit have to be
adapted using the
marking strip
supplied.
Main current
transformer:
n A / 1 A
n A / 5 A
Input module
type:
825-MCM2
825-MCM20
Main current
transformer:
n A / 1 A
n A / 5 A
Input module
type:
825-MCM2
825-MCM20
Wiring the Control Circuit
see page 8
All installations, commissioning and maintenance must be carried
out by qualified personnel, taking local regulations into account.
Pay attention to the System Manual.
3
English