Emerson Bettis 2000 Series E796 M2CP Installation And Maintenance Manual page 22

Section 6: M2CP Wiring Diagram Symbols
September 2018
Figure 25
9
R2
R5
10
Showing Open and Close coils, Mechanical Interlock, and Electrical Interlock Contacts O
(21, 22) & C (21, 22)
Figure 26
C2
TO1
To prevent (TSO) contact tripping when valve has been jammed closed - LSC contact allows
valve to open slightly. Contact then open, ensuring torque protection for remaining travel
Figure 27
2
4
6
Figure 28
Local OFF Remote
(hand)
16
Figure 29
19
Reversing Contactor
ZR3 C1
R5
R4
22 21
C
C
O
22 21
ZR4 C2 R6
Nuisance Trip
Circuit Breaker
1 L1
3 L2
5 L3
Selector Switch N.C. & N.O. Double Break
(auto)
D S1
15
C S2
S3
14
S5
17
S6
18
S7
19
S4
3 Phase Motor with overload relay heaters & contractor contacts
Installation and Maintenance Manual
E2K-402-0817 Rev. 3
M2CP Wiring Diagram Symbols