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Operation 4-21MN2408
Figure 4-9 Engine Control Connections
1
2
3
4
5
6
7
8
9
10
11
12
17
16
15
14
13
38
37
GRD
CR
MP2
MP1
19
18
24
23
B –
B +
+–
CRANK
RUN
25
26
27
28
29
30
31
32
33
34
24
35
36
22
21
20
PROGRAMMABLE
CONTACT #4
PROGRAMMABLE
CONTACT #3
PROGRAMMABLE
CONTACT #2
PROGRAMMABLE
CONTACT #1
COMMON FAIL CONTACT
(OPERATES ON AN ALARM OR
SHUTDOWN CONDITION)
IN
IC
IB
IA
VN
VC
VB
VA
VC
VB
VA
1A
1A
1A
N
GRD
GENERATOR OUTPUT
CURRENT SENSING
TRANSFORMERS
5 Aac SECONDARY
(DELETE PHASE C
FOR SINGLE PHASE
SYSTEMS)
10A
GENERATOR
OUTPUT VOLTAGE
(DELETE PHASE VC
FOR SINGLE PHASE
SYSTEMS)
MEC 20
RUN CIRCUIT
(FUEL SOL., GOV.)
GRD
DIGITAL FAULT INPUT
CONTACTS
(MEC 2 = 1–4
MEC20 = 1–12)
REMOTE START CONTACT
REMOTE FAULT RESET
(CLOSE TO RESET)
REMOTE EMERGENCY STOP
(CLOSE TO STOP)
ENGINE TEMPERATURE SENDER
OIL PRESSURE SENDER
SPEED SENSING
MAGNETIC PICKUP
RUN CIRCUIT
CRANK PILOT RELAY
(A
(B
(C
12VDC (24VDC)
STARTING
BATTERY
(25, 26, 27 Not used in MEC 2)
(Not used in MEC 2)