Magnetek HPV 900 Series 2, Техническое руководство

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User Switches C1 Submenu
88
Parameter
[Alphanumeric]
Description Choices
Default
Hidden
item
Run
lockout
ENGLISH
(U3)
METRIC
(U3)
PreTorque
Latch
i,ii
[C134]
(Pre-Torque Latch
i ,ii
)
This parameter determines if the pre-
torque signal is latched.
NOTE: If PreTorque Source has been set
to NONE, the setting does not have any
effect on the operation of the drive.
Some car controllers send both pre-torque
and speed commands. To facilitate this,
the HPV 900 Series 2 has the option of
latching the pre-torque command.
If pre-torque latching is selected using the
Pre-Torque Latch parameter, a FALSE to
TRUE transition on the pre-torque latch
clock latches the value on the pre-torque
channel into the drive. This channel is
allowed to change any time except during
this transition without affecting the value
of the latched pre-torque command.
The Pre-Torque Latch Clock controls
when the pre-torque command is latched.
The Pre-Torque Latch clock parameter
(PTorq LATCH CLCK) determines the
source of this latch control. The two
choices for latch control are the serial
channel or a logi
c i
nput (EXTERNAL TB).
The speed regulator uses the latched pre-
torque command when the internal Speed
Regulator Release signal is asserted.
Once the pre-torque command is used the
latch and the
pre-torque
command is
cleared.

not latched
i ,ii
[0]

latched
i ,ii
[1]
NOT LATCHED
i,ii
Y
i ,ii
Y
i ,ii
PTorq Latch
Clck
i,ii
[C135]
(Pre-Torque Latch Clock
i ,ii
)
If the PRE-TORQUE LATCH has been set
to LATCHED, then this parameter
chooses the source for latch control. If set
to EXTERNAL TB, the Pre-Trq Latch
signal on TB1 must be selected.

external tb
i ,ii
[1]

serial
i ,ii
[2]
EXTERNAL TB
i,ii
Y
i ,ii
Y
i ,ii
i
Parameter accessible through CLOSED LOOP (U9) Operation
ii
Parameter accessibly through PM (U9) Operation
iii
Parameter accessible through OPEN LOOP(U9) Operation