Siemens ESP200 User Manual

7 Looping Option
Thefollowingtable demonstrates howthe looping process reduces
the current setting of theoverloadbythe numberof times thewires
passthrough the wind owsof the overload.
All current values areexpressed in amperes.
Overload Number Number of Times
Current of Wire Passes
RangeLoops Thru Window
Shownon label 10 - 40 01
OptionA 5.0 - 20 12
OptionB 3.0 - 12 23
OptionC 2.5 - 10 34
OptionD 2.0 - 84 5
OptionE 1.5 - 65 6
Current CT
Range Ratio
Cat #
3UB81234JW2 100-300 300.5 2
3UB81234KW2 133-400 400.5 2
3UB81234LW2 200-600 600.5 2
3UB81234MW2 250-750 750.5 2
3UB81234NW2 400-1220 1200.5 2
# of times
wire passes
through window
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 throughthe windows
repeatedly before connecting to the contactor. By loopingthe motor
leads throughthe windows in the overloadasecond time, the overload
will read twice the current actually going to the motor. Hence the
overload can protectamotor needing halfthe FLA capability of the
overload. An overload with a currentof10to40 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 starterby
looping three, four, or five times.
Hot Terminals
Possible cause: Loose wire connections
Action:
Clean connections and tighten to recommended torque.
Failure To Trip Out
Possible cause: Incorrect dial setting
Action:
Readjust dial setting to the FLA on the motor nameplate.
Overload Trips
Possible cause: Motor is overloaded
Action:
Remove cause of overload and reset overload relay.
Possible cause: Loss of phase
Action:
Replace burnt-out fuse, or reconnect wire in missing phase.
Possible cause: Dial setting is too low
Action:
Readjust dial setting to the FLA on the motor nameplate.
Possible cause: Unbalance Phase
Action:
Correct the power system.
Possible cause: Ground Fault
Action:
Fix the fault and restart.
Possible cause: Set at the wrong trip class
Action:
Reset the dip switches to the correct trip class.
6Troubleshooting
3
Siemens Industry, Inc. 5300 Triangle Parkway, Norcross, GA 30092 www.usa.siemens.com
5 Reset and Test Buttons
READY
RESET
Trip Class5 10 20 30
*
3min.5min. 10 min. 15 min.
**
0.5min.1min. 2min.3min.
ContactTest
Device Test
(electronic functions)
NC 95 96 NO 97 98
O
O
O
O
TEST
NC 95 96 NO 97 98
RESET
NC 95 96 NO 97 98
O
O
O
O
O
O
O
O
Fig. 8
8 ESP200 wiring with External CTs
Fig. 9
ESP200
FULL LOAD AMPS
RESET
TEST
CAT.NO.
48ATC3S00
3 UBB123-4CW2
95 96 A3+
A4- 97 98
5
6
4
3
12
10
7
8
9
5
TRIP CLASS
PHASE UNBAL ON
PHASE LOSS ON
OFF
OFF
RESET MODE MAN
GROUND FAULT ON
AUTO
OFF
10
20
30
X1
L1
X1
L2
X1
L3
Current Transformers (CT)
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.

Siemens ESP200 Specifications

General

Brand	Siemens
Model	ESP200
Category	Controller
Language	English