—————— TPD32-EV ——————
248
the set limits or not.
I2t Motor
• If
Motor I2t ovrld
is set to
Activity = Ignore
,
the current is reduced from
Overload current
parameter value
to
Base current
parameter value when
Motor I2t accum
=
100% (Overload current
2
x Overload time)
•
If
Motor I2t ovrld
is set to
Activity = Warning
,
the current is maintained at
Overload current
parameter value
also when
Motor I2t accum
= 100% (Overload current
2
x
Overload time)
n
ote
!
Motor I2t accum
is equal to 100% if (
Overload current
2
x
Overload time
) is reached but
in any case the limit maximum is [(150% FLC)2 x 60 sec]
I2t Drive
The current is limited to
T current lim
(+/-) value until
Drive I2t accum
= 100% i.e. equal to [(150% Derated Drive
Current
(*)
)
2
x 60 sec]. When this value is reached, the drive is
disabled.
I2t Motor & Drv
The current is limited to
T current lim
(+/-) value until reaching
Drive I2t accum
= 100% [(150% Derated Drive Current
(*)
)
2
x
60 sec] if
Motor I2t ovrld
Activity is set to Warning & Ignore
or, If set to Disable drive until reaching
Motor I2t accum
=
100% (Overload current
2
x Overload time).
(*)
Derated Drive Current:
If using the drive with Standard sizes (Size selection = Standard) the Derated Drive Current is
calculated as follows:
• Derated Drive Current = Drive size x Derating_fact (see table "Table 6.14.6.1: I2t derating"
If using the drive with American sizes (Size selection = American) the Derated Drive Current is
calculated as follows:
• Derated Drive Current = Drive size.
The motor overload function is designed to allow the current selected with
Overload
Current
for a time equal to
Overload Time
.
(I load² - I ovld²)*ts[sec] = ((Over Curr / 100)² - 1²)*I Flc² * (Overload time)
I flc = full load current
The motor overload function gives the possibility to have 1.5 the
Overload current
for 60 sec.
If the threshold is higher than the value is limited to:
(I load² - I Flc²)*ts[sec] = (1.5² - 1²)*I Flc² * 60
The
Motor ovrld preal.
is available on digital output (code 65), it is 1 with
Motor I2t
accum
= 90 % and 0 when
Motor I2t accum
= 0.
The
Overld available
signal is available on digital output (code 6), it is 0 with
Motor
I2t accum
= 100 % and 1 with
Motor I2t accum
0.
The
Drive ovrld preal.
is available on digital output (code 66), it is 1 with
Drive I2t
accum
= 90 % and 0 when
Drive I2t accum
= 0.
The
Overld available
signal is available on digital output (code 67), it is 0 with
Drive
I2t accum
= 100 % and 1 with
Drive I2t accum
0.
Summary of Contents for TPD32-EV-...-2B
Page 1: ... Instruction manual Industrial Application DC drives TPD32 EV ...
Page 372: ... TPD32 EV 372 9 BLOCK DIAGRAM 9 1 CONTROL BLOCK DIAGRAMS ...
Page 373: ... Instruction manual 373 ...
Page 374: ... TPD32 EV 374 ...
Page 375: ... Instruction manual 375 ...
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Page 377: ... Instruction manual 377 ...
Page 378: ... TPD32 EV 378 ...
Page 379: ... Instruction manual 379 ...
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Page 501: ... Instruction manual 501 APPENDIX 3 ACCESSORIES A3 1 EAM Adapter Kit EAM1579 EAM1580 ...
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