Igbt Junction Temperature; Drive Thermal Protection Accumulator; Power Circuit Temperature 3 - Emerson 2202 Advanced User's Manual

Parameter
Menu 7 Introduction
x.00
NOTE
Analog output terminal update rate is 21ms.
Frequency output, Pr 7.19 = Pr 2.01 (Post ramp reference)
0 Fr 0V represents 0Hz/0rpm
+10V represents the value of Pr 1.06 (Maximum set speed clamp)
Load output, Pr 7.19 = Pr 4.02 (Active current)
1 Ld
V --------------------------------------------------------------------------------- -
=
out
2
2 A 0 to 200% output current = 0 to 10V
Where:
3 Por
10V
AC_VOLTAGE_MAX = 0.7446 x DC_VOLTAGE_MAX
7.34

IGBT junction temperature

Bit SP
Coding
±200 °C
Range
Update rate Background
The IGBT junction temperature is calculated using Heatsink temperature (Pr 7.04) and a thermal model of the drive power stage. The resulting
temperature is displayed in this parameter. The calculated IGBT junction temperature is used to modify the drive switching frequency to reduce losses
if the devices become too hot (see Pr 5.18 on page 80).
7.35

Drive thermal protection accumulator

Bit SP
Coding
Range 0 to 100%
Update rate Background
In addition to monitoring the IGBT junction temperatures the drive includes a thermal protection system to protect the other components within the
drive. This includes the effects of drive output current and DC bus ripple. The estimated temperature is displayed as a percentage of the trip level in
this parameter. If the parameter value reaches 100% an O.ht3 trip is initiated.
7.36

Power circuit temperature 3

Bit SP
Coding
Range -128°C to 127°C
Update rate Background
This parameter displays the temperature on the input rectifier on Commander SK size 6 only.
108
Parameter Keypad and
description format display
Active current
× Drive rated active current
3 × AC_VOLTAGE_MAX
------------------------------------------------------------------------------------------------------------------------------------------------------------------- -
=
FI DE Txt VM DP ND
1
FI DE Txt VM DP ND
1
FI DE Txt VM DP ND
1
www.controltechniques.com
Serial CT Modbus
communications RTU
× 10
× RATED_CURRENT_MAX ×
1000
RA NC NV PT US RW BU
1 1
RA NC NV PT US RW BU
1 1
RA NC NV PT US RW BU
1 1
PLC Ladder
CTSoft Menu 0
programming
2
PS
PS
1
PS
Commander SK Advanced User Guide
Advanced parameter
descriptions
Issue Number: 9