6 DCP Interface
22 YASKAWA TOEPC710616134G AC Drive L1000A Technical Manual Addendum
0 : v ≥ 0.3 m/s
1 : v < 0.3 m/s
Bit S5 : Desired distance / Speed accepted
DCP3 and DCP4:
0 : During Emergency Stop or Stall Prevention
1 : The speed was accepted by the drive controller
Bit S6 : Mechanical Brake
DCP3 and DCP4:
Corresponds to the mechanical brake relay of the drive controller.
0 : Mechanical brake closed
1 : Mechanical brake open
Bit S7 : Error in last message received
DCP3 and DCP4:
This bit is set if the drive controller has detected a checksum error in the last message from the lift controller and
has therefore ignored it. In this situation, the lift controller repeats the telegram automatically.
■ Data Bytes
Process Data Communication Data Checksum
1 2 3 4 5 6
Status Byte
(S7 ... S0)
Data Byte 1 Data Byte 2 Communication Byte 1 Communication Byte 2 Checksum
The content of the two data bytes depends on the type of transmitted message. Three different kinds of
information can be transmitted:
• Extended status of the drive controller
• 15-bit deceleration distance
• 16-bit deceleration distance
Extended status of the drive controller
Bit 0 : V
Unlock
Speed for Unlocking Zone
The actual speed is slower than the maximum speed for unlocking zone (v < 0.8 m/s).
0 : The actual speed is faster or equal than the max. speed for unlocking zone (v >= 0.8 m/s)
1 : The actual speed is slower than the max. speed for unlocking zone (v < 0.8 m/s)
Bit 1 : V
Border
Border Speed
The actual speed is slower than the adjustable border speed [d1-30].
0 : The actual speed is faster or equal than the border speed (v >= v
Border
)
1 : The actual speed is slower than the border speed (v < v
Border
)
Bit 2 : V
Over
Overspeed
The actual speed is slower than the adjustable overspeed [d1-31].
0 : The actual speed is faster or equal than the overspeed (v >= v
Over
)
1 : The actual speed is slower than the overspeed (v < v
Over
)
Bit 3 : Reserved
Currently not supported.
Bit 4 - 8 : Reserved for Weight Detection
Currently not supported.
Bit 9 : Emergency Power: Reduced DC Bus Voltage (Battery Supply/UPS)
The drive controller has reduced voltage (supplied by battery/UPS) during emergency power.
0 : Reduced DC Bus voltage not active
1 : Reduced DC bus voltage active