Power Stage Temperature; Drive Cooling Fan - Emerson SP1201 Installation Manual

Safety Product
Introduction
Information information
Table 9-9 Power stage temperature 1 (Pr 7.04) in °C
Drive size Trip temperature Trip reset temperature
SP0xxx TBA
SP1xxx 110
SP2xxx 115
SP3xxx 120
SP4xxx 72
SP5xxx 72
SP6xxx 92
SPMxxxx 96
Table 9-10 Power stage temperature (Oht2)
Drive size Trip temperature
SP6xxx
SPMxxxx
Additional monitoring is used with drives sizes SP6xxx and SPMxxxx to detect failure of the power stage cooling fan. If this fan fails the monitoring
point used to derive power stage temperature 1 that is nearest the fan will rise temperature above it s normal level, but not above the trip temperature
for power stage. This is detected and can initiate an Oht2 trip. The trip thresholds are show below.
Table 9-11 Power stack temperature 2 (Pr 7.05) in °C
Drive size Trip temperature
SP0xxx TBA
SP1xxx 92
SP2xxx 100
SP3xxx 98
SP4xxx 78
SP5xxx 78
SP6xxx 78
SPMxxxx 78
Table 9-12 Power stack temperature 3 (Pr 7.36) in °C
Drive size Trip temperature
SP0xxx TBA
SP1xxx N/A
SP2xxx N/A
SP3xxx N/A
SP4xxx N/A
SP5xxx N/A
SP6xxx 85
SPMxxxx 125
The control board temperature is also monitored and displayed in Pr 7.06. If the temperature displayed exceeds 92°C an O.Ctl trip is initiated, and this
trip can only be reset if the temperature falls below 87°C. If the temperature exceeds 85°C a "hot" alarm is displayed. If the temperature is outside the
range from -20°C to 150°C it is assumed that the monitoring thermistor has failed and an HF29 hardware fault trip is initiated.

Drive cooling fan

The drive cooling fan is controlled by the temperature from monitoring points and other actions as follows:
1. If Pr 6.45 = 1 the fan is at full speed for at least 10s.
2. If an option module indicates that it is too hot the fan is at full speed for at least 10s.
3. For drive sizes SP0xxx to SP2xxx the fan is at full speed if the drive is enabled and the highest power circuit temperature (Pr 7.04 or Pr 7.05) or
the temperature calculated for the case of the IGBT package exceed the threshold for the drive. The fan is at its low speed if this temperature falls
to 5°C below the threshold or the drive is disabled and the temperature is below the alarm level for Pr 7.04 and Pr 7.05.
4. For drive sizes SP3xxx to SPMxxxx the fan speed is controlled above its minimum level if the drive is enabled and the highest power circuit
temperature (Pr 7.04, Pr 7.05 or Pr 7.36) or the temperature calculated for the case of the IGBT package exceed the lower threshold for the drive.
The maximum fan speed is reached when the highest of these temperatures exceeds the upper threshold. The fan is at its minimum speed if the
drive is disabled and the temperature is below the alarm level for Pr 7.04, Pr 7.05 and Pr 7.36.
The thresholds are given in Table 9-13 in °C.
Unidrive SP Regen Installation Guide
Issue Number: 2
System Mechanical Electrical
design installation installation
Alarm temperature
TBA
105
110
115
67
67
87
91
67
71
Trip reset temperature
TBA
87
95
93
73
73
73
73
Trip reset temperature
TBA
N/A
N/A
N/A
N/A
N/A
80
100
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TBA
100
100
100
68
68
85
88
Alarm temperature
TBA
85
95
94
72
72
72
72
Alarm temperature
TBA
N/A
N/A
N/A
N/A
N/A
80
120
Technical Component
Parameters
data sizing
Diagnostics
123