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Diagnostics Optimization CT MODBUS RTU Technical Data
312 E300 Design Guide
Issue Number: 1
This sets the maximum operating speed for the fan during a travel, where:
• A value from 1 to 10 is the maximum speed that the fan will use where the fan speed is automatically optimized dependant on the actual heatsink
temperature. When the travel completes the fan will be switched off. Lower values will decrease acoustic noise but will increase the chance of
over-temperature trips.
• A value of 0 forces the fan to run at full speed during a travel, and is switched off when the travel ends. This setting gives the lowest possibility of
drive thermal trips where the fan is switched off at the end of a travel.
• A value from -1 to -10 is the maximum speed that the fan will use where the fan speed is automatically optimized dependant on the actual
heatsink temperature of the drive. When the travel completes the fan will remain active until the heatsink is fully cooled. Lower values will
decrease acoustic noise but will increase the chance of over-temperature trips.
If Drive Over Temperature Alarm (L22) = On (1) then the fan will be forced to operate at full speed to bring the heatsink temperature down rapidly
regardless of the operating state.
When set to Creep To Floor (0), the elevator drive operates in Creep to floor control mode. In this mode Creep Speed Select (G52) selects which of
the speeds, V1 Speed Reference (G01) to V10 Speed Reference (G10) is the creep speed, and remaining speeds are the elevator operating speeds.
When set to Direct To Floor (1), the elevator drive operates in Direct to floor control mode. In this mode V1 Speed Reference (G01) > V10 Speed
Reference (G10) sets the elevator operating speeds.
If analog speed reference is selected, Control Input Mode (H11) = Analog Run Prmit OR Analog 2 Dir (0 or 1), then this parameter has no effect.
H18 Fan Maximum Speed
Mode RFC-A, RFC-S
Minimum -10 Maximum 10
Default 10 Units
Type 8 Bit User Save Update Rate Background
Display Format Standard Decimal Places 0
Coding RW
H19 Elevator Control Mode
Mode RFC-A, RFC-S
Minimum 0 Maximum 1
Default 0 Units
Type 8 Bit User Save Update Rate Background
Display Format Standard Decimal Places 0
Coding RW, Txt, US
Value Text
0 Creep To floor
1 Direct To floor
Velocity
Direct to floor
Time
Time
Creep to floor
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