YASKAWA SI-ES3, Technical Manual, Page: 41 / 62

8 Object Dictionary
YASKAWA ELECTRIC SIEP C730600 64A 1000-Series Option SI-ES3 Technical Manual 41
„
6046 (Hex) - vl Velocity Min Max Amount
This object provides two subindexes to set the minimum and maximum speed reference in r/min.
„
6048 (Hex) - vl Velocity Acceleration
The vl velocity acceleration specifies the acceleration time. The quotient of the subindexes delta speed and delta time
determines the acceleration time. The object values correspond to the acceleration time setting in the drive.
Behavior: At power-up, the option will sync the E1-04 (Max output frequency) against the delta speed (sub-index 1) and
calculate the delta time (sub-index 2) accordingly. If the E1-04 (Max output frequency) changes during runtime, the
option will adapt the internal delta speed attribute according the change of E1-04 linearly to provide the proper
delta-speed.
Index (Hex) Subindex Content Access PDO Mapping Value Range Unit
6046
1
vl velocity min amount Read/Write Rx/Tx
0...(2
32
-1)
r/min
Minimum speed reference allowed
MEMOBUS/Modbus register: 0x028A, d2-02 (Frequency reference lower limit)
Note: The parameter specifies the % rate of E1-04 maximum output frequency. Internal parameter
calculations are needed.
2
vl velocity max amount Read/Write Rx/Tx 0...(2
32
-1) r/min
Maximum speed reference allowed
MEMOBUS/Modbus register: 0x0289, d2-01 (Frequency reference upper limit)
Note:
The parameter specifies the % rate of E1-04 maximum output frequency. Internal parameter
calculations are needed.
Index (Hex) Subindex Content Access PDO Mapping Value Range Unit
6048
1
Acceleration delta speed Read/Write Rx/Tx 0...(2 23 -1) r/min
T = MEMOBUS/Modbus register: 0x0200, C1-01 (Unit: 0.1/0.01 s) (Acceleration time 1)
M = MEMOBUS/Modbus register: 0x0303, E1-04 (Unit: 0.1 Hz) (Max output frequency)
P = MEMOBUS/Modbus register: 0x0211, E2-04 (Motor pole count)
Mrpm = (120*M)/P
dt = Delta time, sub-index 2
Delta speed (ds) = Mrpm (At power-up)
T = (dt*M)/ds
Note: Unit of T (C1-01) is linked to C1-10.
2
Acceleration delta time Read/Write Rx/Tx 0...65535 s
T = MEMOBUS/Modbus register: 0x0200, C1-01 (Unit: 0.1/0.01 s) (Acceleration time 1)
M = MEMOBUS/Modbus register: 0x0303, E1-04 (Unit: 0.1 Hz) (Max output frequency)
P = MEMOBUS/Modbus register: 0x0211, E2-04 (Motor pole count)
Mrpm = (120*M)/P
ds = Delta speed, sub-index 1
Delta time (dt) = (ds*T)/Mrpm (dt)
T = (dt*M)/ds
Note: Unit of T (C1-01) is linked to C1-10.