Eaton EMS2 Series - Example of a Reversing Starter; Terminal Assignment

2 Motor starters
2.3 Motor starter with safety function (DOS, ROS)
EMS2… Electronic motor starter 10/19 MN034003EN www.eaton.com 15
2.3.2 Example of a reversing starter
2.3.3 Terminal assignment
Table 5: Terminal assignment
Figure 6: Mutual (left) and separate (right)
voltage sources for supply and control inputs
A2
E
U
e
RL
A1 R L
A2
E
U
e
RL
A1 R L
Terminal Function
1L1 three-phase incoming unit
3L2
three-phase incoming unit
5L3 three-phase incoming unit
2T1 three-phase motor connection
4T2 three-phase motor connection
6T3 three-phase motor connection
A1 control voltage connection
A2 control voltage connection
ON Motor startup (with DOL starters)
Reference point is terminal A2
L
Motor startup in counterclockwise rotation (for reversing starters)
Reference point is terminal E
R
Motor startup in counterclockwise rotation (for reversing starters)
Reference point is terminal E
E
Reference point for control inputs L, R and ON
95 Relay output for fault messages
96
Relay output for fault messages
98
Relay output for fault messages
RES / MAN Input for manual resetting of error messages
RES / AUT Input for automatic resetting of error messages