Danfoss TI 180 E Manual página 6

General
Electronic motor protection relay TI 180 E is a
compact unit with integrated current transform-
ers for motor current measurement.
With TI 180 E a motor can be protected
against:
- thermal overload
- overcurrent (indication by flashing)
- single-phasing and asymmetry
- overtemperature
(thermistor measurement)
Checks
Supply voltage U and frequency must be
s
identical to that shown on the upper side of the
unit.
Rated motor operating current I
the current range of the relay, 20-180 A (which
can be adjusted down to 2.5-5 A, as described
under "Connection").
Installation
TI 180 E is designed for wall mounting using
four M5 screws (fig. 1) or on standard rail EN
50022-35 × 7.5. or 35 × 15 (fig. 2).
For dimensions, see fig. 15.
Connection, contactor and electronic
motor protection relay
- conductor bars 037H3027 and three M6
screws onto Danfoss contactor CI 105,
or
- conductor bars 037H3028 and three M6
screws onto Danfoss contactor CI 141/170 EI
(fig. 2A).
Without conductor bars:
Recom.
range (I ) Motor cable
e
A
Fed straight
20 - 180
through
2 × windings
10 - 20
fig. 3
4 × windings
5 - 10
fig. 4
8 × windings
2.5 - 5
Connection to contactor and motor can be
made easier by looping the cable as required
before installing the unit.
6
TI 180 E as secondary relay
As secondary relay, TI 180 E can also protect
motors with full-load currents if more than 180
A and high-voltage motors for operating
voltages of more than 1000 V.
Recommended current transformer data:
Min. operating voltage =
rated operating voltage of motor
Min. primary current =
operating current of motor
Class and overcurrent factor: 5 P 10
Secondary
current
Circuit diagrams
2-phase current measurement (fig. 5)
3-phase current measurement (fig. 6)
Finger protection of main terminals
Use finger protection 037H3246 for TI 180 E/
must be within
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CI 105 and 037H3409 for TI 180 E/CI 141/CI
170 EI (fig. 2B).
Control connections (fig. 7, A-D)
A: (-)A2, (+)A1: Supply voltage U
B:98-97, 96-95: Output contact
C: 3-off (r1,r2,r3) For remote reset module RRM.
D: 1T1, 2T2 :
Settings
Rated operating current of motor (fig. 7, L)
Motor operating current I
Cable cross-section
TI 180 E setting: I
[A] and number of loops (see "Connection").
mm 2 AWG
Setting range
4 - 95 10 - 0000
From 20 to 180 A in steps of 1 A
2.5 - 25 14 - 10
Setting examples, fig. 8
Example 1
1 - 6 14
I = 120 A
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Slide switches 6 and 8 moved to the right
0.75 - 2.5 14
Contact 6 = 20 A
Contact 8 = 80 A
Basic value = 20 A
I = 120 A
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No. of
Rated current setting
windings
20-40 = (2,5-5) × 8
5 A 8
20-40 = (0,5-1) × 40
1 A 40
Connection (option) shown in
diagram on RRM (fig. 11).
Thermistor connection
(overtemperature protection).
If this function is used, first
remove the factory-mounted
resistor RT (1 kohm) and then
connect the PTC temperature
sensors built into the motor to
terminals 1T1 and 2T2.
(See IEC 947-4)
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in amperes or product of I
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DKACT.PS.C20.A1.6D
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