Emerson E300 Series Design Manual page 362

Safety Product Mechanical
information information installation
Source xx
Control system 00
Control system 00
Control system 00
Control system 00
Control system 00
Power system 01
Power system 01
J75 Monitor Temperature Select 2
Mode Open-Loop, RFC-A, RFC-S
Minimum 0
Default 1002
Type 16 Bit User Save
Display Format Standard
Coding RW
See Monitor Temperature Select 1 (J74).
J76 Monitor Temperature Select 3
Mode Open-Loop, RFC-A, RFC-S
Minimum 0
Default 1
Type 16 Bit User Save
Display Format Standard
Coding RW
See Monitor Temperature Select 1 (J74).
J77 Inverter Temperature
Mode Open-Loop, RFC-A, RFC-S
Minimum -250
Default
Type 16 Bit Volatile
Display Format Standard
Coding RO, ND, NC, PT
Inverter Temperature (J77) shows the estimated junction temperature of the hottest power device within the drive inverter. If this temperature exceeds
the switch down threshold defined for the power stage the switching frequency is reduced.
J78 Percentage Of DC Link Thermal Trip Level
Mode Open-Loop, RFC-A, RFC-S
Minimum 0
Default
Type 8 Bit Volatile
Display Format Standard
Coding RO, ND, NC, PT
Percentage Of DC Link Thermal Trip Level (J78) gives the percentage of the maximum allowed temperature as estimated by the thermal model of the
d.c. link components.
362
Electrical Getting
User Menu A Commissioning
installation started
y
0 01: Control board thermistor 1
0 02: Control board thermistor 2
0 03: I/O board thermistor
1 00: Inverter thermal model
3 00: Braking IGBT thermal model
0 zz: Thermistor location defined by zz in the power system
Rectifier number zz: Thermistor location defined by zz in the rectifier
Advanced
Diagnostics Optimization CT MODBUS RTU Technical Data
Parameters
zz
Maximum 1999
Units
Update Rate Background read
Decimal Places 0
Maximum 1999
Units
Update Rate Background read
Decimal Places 0
Maximum 250
Units °C
Update Rate Background write
Decimal Places 0
Maximum 100
Units %
Update Rate Background write
Decimal Places 0
E300 Design Guide
Issue Number: 1