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Diagnostics Optimization CT MODBUS RTU Technical Data
246 E300 Design Guide
Issue Number: 1
Mode: Open-Loop, RFC-A, RFC-S
When set to Off (0), the motor is not magnetized, and when set to On (1), the motor is magnetized.
Internally this bit is set to On (1) when:
• In RFC-A only, Motor Percentage Flux (B18) >=90%
• The torque producing current limit has been ramped up to Symmetrical Current Limit (B16)) using Motor Torque Ramp Time (D02).
• Reference On (D10) = On (1), Reference must be enabled (Enabled, healthy, run signal present)
• The Elevator state machine must be > Idle (0)
• In open loop only, if Current Magnitude, Total Output Current (J22) >= Brake Control: Upper Current Threshold (D06) expressed as a percentage
of Motor Rated Current (B02).
• In open loop only, Start Optimizer Speed (G46) has been reached
This bit is set to Off (0) when any of the above conditions is not met.
This indication can be routed to a digital output to send to an elevator controller to indicate when to release the brake if it is not controlled by the
elevator drive.
This sets the time in ms for the torque producing current limit to be ramped up to Symmetrical Current Limit (B16) when starting and ramped down to
0 when stopping. This gives a smooth transfer of load holding between the motor and the mechanical brake on start and stop.
This feature also acts to gently apply the torque feed forward from the load cell if one is used.
The mechanical brake control function can be used to control an electro-mechanical brake via digital I/O. Brake Control Output (D03) = 0 when the
brake should be applied and 1 when the brake should be released. Normally this should be routed to a digital output to control the mechanical brake.
This sets the time delay in ms for the brake to be physically released. This is used during starting to determine if the brake can be considered fully
opened i.e. prior to starting the travel profile and disabling the position lock position loop (if enabled via Start Lock Enable (I22) in RFC-A and RFC-S).
D01 Motor Magnetized Indication
Mode Open-Loop, RFC-A, RFC-S
Minimum 0 Maximum 1
Default 0 Units
Type 1 Bit User Save Update Rate Background write
Display Format Standard Decimal Places 0
Coding RO,
D02 Motor Torque Ramp Time
Mode Open-Loop, RFC-A, RFC-S
Minimum -32768 Maximum 32767
Default 100 Units ms
Type 16 Bit User Save Update Rate Background
Display Format Standard Decimal Places 0
Coding RW
D03 Brake Control Output
Mode Open-Loop, RFC-A, RFC-S
Minimum 0 Maximum 1
Default Units
Type 1 Bit Volatile Update Rate 4 ms write
Display Format Standard Decimal Places 0
Coding RO, ND, NC, PT
D04 Brake Control Release Delay
Mode Open-Loop, RFC-A, RFC-S
Minimum 0 Maximum 10000
Default 500 Units ms
Type 16 Bit User Save Update Rate Background
Display Format Standard Decimal Places 0
Coding RW
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