Page
8
Issue 2 22/4/98
MPC2000D
MPC2000D PROTECTION ONLY WIRING DIAGRAM
N
74
73
72
71
29
30
70
69
17
18
19
20
3
4
31
32
MOTOR
CT1
CT2
CT3
CT4
L1
L2
L3
N
(Not always available)
13
15
14
16
N
L3
L2
L1
37
35
33
38
36
34
MPC2000D
(0.1K-30K)
(100-240 OHMS)
MEASUREMENT VOLTAGES
1
2
CASE
CT4
CT3
CT2
CT1
SWAMPING
RESISTOR
5
7
9
6
8
10
FOR INDICATION PURPOSES
NOTE:
RELAY SUPPLIED AS 1 AMP
OR 5 AMP AS REEQUIRED
LOCAL/REMOTE [OPEN =LOCAL]
PLC/SERIAL PORT [OPEN =PLC]
AUTHORISED KEY [CLOSED =AUTHORISED]
PLC RESET [NO]
EXTERNAL FAULT 2
EXTERNAL FAULT 3
SPEED SWITCH [OPEN =HIGH]
EXTERNAL EMERGENCY STOP [NC]
AUX 2 RELAY [TRIP]
AUX 1 RELAY [ALARM]
CONTACT SHOWN IN
DE-ENERGISED STATE
THERMISTOR
PT100
OVERLOAD TRIP
E/F TRIP
GND
LOGIC SUPPLY
ALT. AUX POWER SUPPLY
AUX. SUPPLY
INTERNAL
POWER
SUPPLY
ON
ALTERNATIVE RESIDUAL EARTH FAULT CONNECTION
21
22 23
24 25
26
27
28
21
22 23
24 25
26
27
28
39
42
45
40
43
46
41
44
47
39
42
45
40
43
46
39
40
41
42
43
44
45
46
47
48
49
50
55
56
54
(-)
(+)
3 RTD OR 3 THERMISTORS
DIP SWITCH SETTINGS
ON [THERMISTOR]
OFF [RTD]
RS485 SERIAL PORT
SHIELD
CHANNEL 1
CHANNEL 3
CHANNEL 2
51
52
53
CHANNEL 5
CHANNEL 4
SCREEN
11,12
OPTIONAL 2 RTD INPUTS
FOR CHANNELS 1,2&3
NOTE TERMINALS 11,12
& 54 ARE INTERNALLY
CONNECTED.
FOR SEPERATE INSTRUMENT
EARTHING TERMINAL 11
MUST BE CONNECTED TO
A SEPERATE EARTH FROM
THE CASE.
OTHERWISE CONNECT TO
THE CASE. (SEE SECTION 4.0)
