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Diagnostics Optimization CT MODBUS RTU Technical Data
184 Installation and System Design Guide
Issue Number: 1
Table 7-26 Additional control functions
Elevator drive feature Additional detail
Operating mode
Creep to Floor Default operating mode available for all operating modes OL, RFC-A and RFC-S
Direct-to-floor Direct to floor operation available for closed loop RFC-A and RFC-S modes
Low voltage DC mode
Low voltage DC operation
External Backup battery supply
UPS + additional UPS protection
Low power function Automatic control over power consumption during operation
Control interface
Control input modes
Analog speed reference
Analog Run Prmit (0), Analog 2 Dir (1)
Digital speed references (Priority -7 speeds, Binary - 10 speeds)
Priority 1 Direction (2), Priority 2 Directions (4)
Binary 1 Direction (3), Binary 2 Directions (5)
Serial communications (Modbus RTU) Control and Status word
Control Word (6)
Drive Control and Position (DCP) protocol
DCP3 (7), DCP4 (8)
Position feedback
RFC-A, RFC-S position feedback checks during auto tune … reversed position feedback detection,
position feedback loss, wire break detection, position feedback communications error detection
Elevator drive firmware features
Power supply loss Detection of loss of the drives power supply
Auto tune Rotating – Stationary and Inertia auto tune options
ENP Electronic NamePlate support for SC.EnDat, SCHipferace, EnDat 2.1 and 2.2
Motor phase rotation Motor phase rotation U, V, W option through Elevator drive parameter
Motor fluxed Motor fluxed detection for induction motors during start
Motor phase loss Detection of loss of motor phase on drive enable
Position feedback phase rotation Position feedback phase rotation, Incremental encoders, option through Elevator drive parameter
Brake control Motor Brake control + monitoring
UCM Brake Contact Monitoring
TUV Nord Motor brake contact monitoring certified for UCM.
Supports up to 4 Motor brakes
Safe Torque Off (STO)
TUV Nod approved Safe Torque Torque (STO)
Used for additional TUV Nord approved zero output motor contactor solutions
Motor contactor control
Output motor contactor control + monitoring. Application note available for zero output motor
contactor solution using drives Safe Torque Off (STO)
Zero output motor contactor solution
Single or zero output motor contactor solution TUV Nord approved to EN 81-20 and EN 81-50
application note available
Load measurement Load measurement provides both the level of load and direction used for backup, rescue operation
Inertia compensation Inertia compensation to optimise the Elevator drive control based upon the Elevator system
Load cell Analog input to support external Elevator system load cell compensation
Fast start
Fast start of the Elevator system through Fast control sequence over energising the motor, control
sequence and control of car doors
Peak curve Ensures constant stopping distance independent of floor distance and when stop signal is received
Short floor landing Short floor landing used for short floor distances less than 0.7 m
Rapid slow down
Used to support rapid deceleration to a safe low speed, Creep speed for continued operation to
next floor during a fault
Floor sensor correction
Stopping distance correction for floor sensor correction signals positioned around 50 to 500 mm
from floor level
Fast stop Fast stop typically used for inspection operation and maintenance work
Fast disable Used for operation with output motor shorting contactor, inspection control
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