Dcp Behavior In Event Of Transmission Errors; Lift Controller - YASKAWA L1000A CIMR-LC F Series Technical Manual Addendum

Ac drive for lift applications

Table of Contents

• The lift controller has to send the starting command also in case of not receiving the drive controller's response

of the "I8" message.

Position Message ('I' '9')

The actual position of the lift car is sent from the lift controller to the drive controller after each stop. It is the

distance in mm between the actual position and the lowest floor level. That also applies to travels using the speed

assignments VI (inspection), V0 (crawl) or VN (re-leveling).

If the extended protocol mode was activated by the message 'I','1' before, the drive controller transmits the travel

distance in its response message. This information can be used by the lift controller to calculate the slip.

Position Message from Lift Controller

After each stop, while the drive is stationary, the lift controller sends the position.

STX

'I'

The function should not be used in combination with the Fast-Start function.

SIGN (Sign / Result) :

('E': invalid value, '+': positive value, '-': negative value)

P1 ... P6 :

Position (value in mm from lowest floor level)

Response to Position Message by Drive Controller

The drive controller's response message is dependent on the activated protocol type.

If the base protocol is activated or the drive controller supports only the base protocol, the drive responds with

the message:

STX

If the extended protocol is activated and supported by the drive controller, the drive controller responds with a

message containing the distance of its last travel measurement including sign.

STX

'I'

SIGN (Sign / Result) :

('E': invalid value, '+': positive value, '-': negative value)

D1 ... D6 :

Distance of the last travel in mm with sign calculated from motor encoder.

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