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5 Reset and Test Buttons
Contact Test
RESET
Fig. 8
Trip Class
5
3 min.
*
0.5 min.
**
Note: Must have at least 80% of Motor amps for this test to work.
* The device must be energized with a running motor for at least the
minimum time, shown in the table.
** Then the test button can be pushed and held until the device trips.
The trip time depends on the selected Trip Class as shown in the table.
READY
NC 95 96
NC 95 96
NO 97 98
O
O
O
O
6 Troubleshooting
Hot Terminals
Possible cause: Loose wire connections
Action:
Clean connections and tighten to recommended torque.
Failure To Trip Out
Possible cause: Incorrect dial setting
Readjust dial setting to the FLA on the motor nameplate.
Action:
Overload Trips
Possible cause: Motor is overloaded
Remove cause of overload and reset overload relay.
Action:
Possible cause: Loss of phase
Replace burnt-out fuse, or reconnect wire in missing phase.
Action:
Possible cause: Dial setting is too low
Action:
Readjust dial setting to the FLA on the motor nameplate.
Possible cause: Unbalance Phase
Correct the power system.
Action:
Possible cause: Ground Fault
Fix the fault and restart.
Action:
Possible cause: Set at the wrong trip class
Reset the dip switches to the correct trip class.
Action:
Siemens Industry, Inc.
5300 Triangle Parkway, Norcross, GA 30092
Device Test
(electronic functions)
10
20
5 min.
10 min.
15 min.
1 min.
2 min.
TEST
RESET
NO 97 98
NC 95 96
O
O
O
O
O
O
7 Looping Option
for ESP200 with windows
In applications involving the use of 12 or 14 AWG wire, usually motors of
5HP or less, the wires maybe looped and passed through the windows
repeatedly before connecting to the contactor. By looping the motor
leads through the windows in the overload a second time, the overload
will read twice the current actually going to the motor. Hence the
overload can protect a motor needing half the FLA capability of the
overload. An overload with a current of 10 to 40 amperes can be used for
a motor FLA between 5 to 20 amperes.
Similarly, motors that require only one-third, one-fourth, or one-fifth the
overload's FLA capability can use the same size ESP200 starter by
looping three, four, or five times.
The following table demonst rates how the looping process reduces
the current setting of the overload by the number of times the wi res
pass through the wind ows of the overload.
All current values are expressed in amperes.
30
Shown on label
3 min.
Option A
Option B
Option C
Option D
Option E
8 ESP200 wiring with External CTs
NO 97 98
O
O
Fig. 9
Cat #
3UB81234JW2
3UB81234KW2
3UB81234LW2
3UB81234MW2
3UB81234NW2
www.usa.siemens.com
Overload
Number
Current
of
Range
Loops
10 - 40
0
5.0 - 20
1
3.0 - 12
2
2.5 - 10
3
2.0 - 8
4
1.5 - 6
5
Current Transformers (CT)
L1
L2
X1
X1
6
5
7
8
ESP200
4
9
10
3
12
FULL LOAD AMPS
TEST
CAT.NO.
4 8 AT C 3 S 0 0
RESET
95
96
A3+
Current
CT
Range
Ratio
100-300
300.5
133-400
400.5
200-600
600.5
250-750
750.5
400-1220
1200.5
Number of Times
Wire Passes
Thru Window
1
2
3
4
5
6
L3
X1
TRIP CLASS
5
20
10
30
PHASE UNBAL ON
OFF
PHASE LOSS ON
OFF
RESET MODE MAN
AUTO
GROUND FAULT ON
OFF
3 U B B 1 2 3 - 4 C W 2
A4-
97
98
# of times
wire passes
through window
2
2
2
2
2
3
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