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3 System Functions
3
3. Select an ARD with the nominal output power equal to or larger than the motor rated
power.
4. For the 380 V elevator ARD, only two phases are used for emergency evacuation output,
and you need to ensure that wiring to the controller is correct; the output is single-phase
380 V, and you need to ensure that the transformer meets the requirements on the input
side.
Other parameters related to emergency evacuation
Parameter No. Parameter Name Setting Range
F3-22 Acceleration rate at emergency evacuation 0.100 to 1.300 m/s2
F6-48 Emergency evacuation switching speed 0.010 to 0.630 m/s
F6-49 Evacuation parking oor 0 to F6-00
F8-09 Emergency evacuation operation speed at power failure 0.05 m/s
3.5 STO Function
Background
The safe torque off (STO) function, used in the system without contactor in the elevator control cabinet and
improving the safety level up to SIL3, disconnects the safety circuit, and prevents motor motion to ensure
elevator running safety.
Description
The controller must support the STO function and a STO card is required to implement the STO function, as
described in the following table.
Name Model Description
Special elevator controller Customized
Special NICE3000new with the STO
function
STO card MCTC-JCB-A2
STO card used together with the
drive board
The following gure shows the connection between the NICE3000
new
and the STO card.
Figure 3-11 Connection between NICE3000
new
and STO card
STO card
24V1
COM1
24V2
COM2
DNS+
DNS-
Drive board of
elevator controller
R
S
T
PB
U
V
W
POWER MOTOR