Emerson E300 Series Design Manual page 246

Safety Product Mechanical
information information installation
Mode: Open-Loop, RFC-A, RFC-S
D01
Mode Open-Loop, RFC-A, RFC-S
Minimum 0
Default 0
Type 1 Bit User Save
Display Format Standard
Coding RO,
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.
D02
Mode Open-Loop, RFC-A, RFC-S
Minimum -32768
Default 100
Type 16 Bit User Save
Display Format Standard
Coding RW
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.
D03
Mode Open-Loop, RFC-A, RFC-S
Minimum 0
Default
Type 1 Bit Volatile
Display Format Standard
Coding RO, ND, NC, PT
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.
D04
Mode Open-Loop, RFC-A, RFC-S
Minimum 0
Default 500
Type 16 Bit User Save
Display Format Standard
Coding RW
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).
246
Electrical Getting
User Menu A Commissioning
installation started
Motor Magnetized Indication
Motor Torque Ramp Time
Brake Control Output
Brake Control Release Delay
Advanced
Diagnostics Optimization CT MODBUS RTU Technical Data
Parameters
Maximum 1
Units
Update Rate Background write
Decimal Places 0
Maximum 32767
Units ms
Update Rate Background
Decimal Places 0
Maximum 1
Units
Update Rate 4 ms write
Decimal Places 0
Maximum 10000
Units ms
Update Rate Background
Decimal Places 0
E300 Design Guide
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