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A thermal protection system is provided for the braking resistor. If
Braking Resistor Rated Power
(10.030) is set to zero this protection system is disabled and the
Braking Resistor Thermal Accumulator
(10.039) is held at zero. If braking resistor thermal protection is required the
Braking Resistor Rated Power
(10.030),
Braking Resistor Thermal Time Constant
(10.031) and
Braking Resistor Resistance
(10.061) should be set up with the braking resistor parameters. The
thermal time constant of the resistor can be calculated from the single pulse energy rating (E in Joules) and continuous power rating (P in Watts) of the resistor.
Braking Resistor Thermal Time Constant
(10.031) = τ = E / P
The braking resistor is protected with a single time constant model as shown below.
The drive monitors the power flowing into the braking resistor and updates the
Braking Resistor Thermal Accumulator
(10.039). If bit 1 of
Action On Trip Detection
(10.037) = 0 and the accumulator reaches 100% an
Brake R Too Hot
trip is initiated. If bit 1 of
Action On Trip Detection
(10.037) = 1 and the accumulator reaches
100% the braking IGBT is disabled until the accumulator falls below 95.0%.
Parameter
10.031
Braking Resistor Thermal Time Constant
Short description
Set to the thermal time constant of the braking resistor
Mode
Open
‑
loop
Minimum
0.00
Maximum
1500.00
Default
0.00
Units
s
Type
32 Bit User Save
Update Rate
Background read
Display Format
Standard
Decimal Places
2
Coding
RW
See
Braking Resistor Rated Power
(10.030) .
Parameter
10.032
External Trip
Short description
Set to initiate an external trip
Mode
Open
‑
loop
Minimum
0
Maximum
1
Default
0
Units
Type
1 Bit Volatile
Update Rate
Background read
Display Format
Standard
Decimal Places
0
Coding
RW, NC
If
External Trip
(10.032) is set to one an
External Trip
.003 is initiated. A digital input can be routed to
External Trip
(10.032) to provide an external trip input function.
Parameter
10.033
Drive Reset
Short description
Set to initiate a drive reset
Mode
Open
‑
loop
Minimum
0
Maximum
1
Default
0
Units
Type
1 Bit Volatile
Update Rate
Background read
Display Format
Standard
Decimal Places
0
Coding
RW, NC
A 0 to 1 transition in
Drive Reset
(10.033) causes a drive reset. If a drive reset terminal is required a digital input should be routed to
Drive Reset
(10.033).
Parameter
10.034
Number Of Auto-reset Attempts
Short description
Set to the number of required auto-reset attempts
Mode
Open
‑
loop
Minimum
0
Maximum
6
Default
0
Units
Type
8 Bit User Save
Update Rate
Background read
Display Format
Standard
Decimal Places
0
Coding
RW, TE
Value
Text
0
None
1
1
2
2
3
3
4
4
5
5
6
inF
If
Number Of Auto-reset Attempts
(10.034) = 0 then no auto-reset attempts are made. Any other value will cause the drive to automatically reset following a trip for
the number of times programmed after a delay defined by
Auto-reset Delay
(10.035) subject to the minimum reset time allowed for the type of trip. Note that for some
158
Unidrive M200 Parameter Reference Guide
Issue: 01.05.00.10
Содержание unidrive m200
Страница 1: ...Parameter Reference Guide Unidrive M200 Open loop Mode Issue 01 05 00 10 ...
Страница 29: ...Menu 2 Frequency Ramps Mode Open loop Unidrive M200 Parameter Reference Guide Issue 01 05 00 10 29 ...
Страница 30: ...30 Unidrive M200 Parameter Reference Guide Issue 01 05 00 10 ...
Страница 83: ...Enable logic Unidrive M200 Parameter Reference Guide Issue 01 05 00 10 83 ...
Страница 100: ...Menu 7 Analog I O Mode Open loop 100 Unidrive M200 Parameter Reference Guide Issue 01 05 00 10 ...
Страница 113: ...Menu 8 Digital I O Mode Open loop Unidrive M200 Parameter Reference Guide Issue 01 05 00 10 113 ...
Страница 125: ...Unidrive M200 Parameter Reference Guide Issue 01 05 00 10 125 ...
Страница 144: ...Menu 10 Status and Trips Mode Open loop 144 Unidrive M200 Parameter Reference Guide Issue 01 05 00 10 ...
Страница 145: ...Unidrive M200 Parameter Reference Guide Issue 01 05 00 10 145 ...
Страница 204: ...204 Unidrive M200 Parameter Reference Guide Issue 01 05 00 10 ...