Detailed Description of the Parameters
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CTW900 | 99
N > Nx and Nt > Nx:
In this function, the two conditions must be met so that the output is activated. Therefore,
it is necessary that the present speed (N – P0002) and the total reference (Nt – P0046) be above the value of Nx
(P0288) so that the transistor will be saturated and/or the relay coil will be energized.
Without Alarm:
Keeps the output activated if no alarms are present on the converter.
Without Alarm and Without Fault:
If no faults or alarms are present on the converter, the output set for this
function will remain activated.
Bridge A in Conduction:
Indicates the operation of the bridge responsible for the spinning in the forward
direction (Bridge A).
Table 7.15
–Definitions of the symbols used in the digital output functions
Symbol
Corresponding
Parameter
Description
N
P0002
Present Speed
N*
P0001
Speed Reference
Nx
P0288
Speed Nx
(Speed reference point selected by the user)
Ny
P0289
Speed Ny
(Speed reference point selected by the user)
Ia
P0003
Armature Current
Ix
P0290
Current Ix
(Current reference point selected by the user)
Torque
P0009
Motor Torque
Tx
P0293
Torque Tx
(Torque reference point selected by the user)
Hx
P0294
Time Hx
(Time reference point selected by the user)
Nt
P0046
Total Speed Reference
Figure 7.15 a) to d)
– Details about the operation of the functions of the digital and relay outputs
