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Open-loop Logic Inputs C2
70
Choices
contact cfirm
(Contact Confirm Signal)
Closure of the auxiliary contacts confirming
closure of the motor contactor (normally open).
drive enable
(Drive Enable)
Enables drive to run. This signal must be
asserted to permit drive to run. This does not
initiate run, just permits initiation.
extrn fault 1
(External Fault 1)
extrn fault 2
(External Fault 2)
extrn fault 3
(External Fault 3)
Closure of this contact will cause the drive to
declare a fault and perform a fault shutdown.
extrn /flt 4
(External /Fault 4)
Opening of this contact will cause the drive to
declare a fault and perform a fault shutdown.
fault reset
(Fault Reset)
If the FAULT RESET SRC (C1) switch is set to
EXTERNAL TB1, the drive’s fault circuit will be
reset when this signal is true. If the FAULT
RESET SRC (C1) switch is set to AUTOMATIC,
the drive’s fault circuit will be reset when this
signal is true and the automatic fault reset
counter (defined by FLT RESETS/HOUR (A1))
will be reset to zero.
NOTE: This input is edge sensitive and the fault
is reset on the transition from false to true.
mech brk hold
(Mechanical Brake Hold Signal)
Auxiliary contact closures confirming when the
mechanical brake is in the hold mode
(engaged).
mech brk pick
(Mechanical Brake Pick Signal)
Closure of auxiliary contacts confirming the
mechanical brake has been picked (lifted).
nc cntact cfirm
(NC - Contact Confirm Signal)
Closure of the auxiliary contacts confirming
closure of the motor contactor (normally closed).
no function
(No Function)
When this setting is selected for one of the TB1
input terminals, any logic input connected to that
terminal will have no effect on drive operation.
ospd test src
(Overspeed Test Source)
This function works only if the OVRSPEED
TEST SRC (C1) switch is set to EXTERNAL
TB1. A true signal on this input applies the
OVERSPEED MULT (A1) to the speed
command for the next run. After the run
command has dropped, the drive returns to
‘normal’ mode and must be re-configured to
perform the overspeed function again. The
OVERSPEED FLT level is also increased by
the OVERSPEED MULT (A1), allowing the
elevator to overspeed without tripping out on an
overspeed fault.
NOTE: This input must be taken false then true
each time that an overspeed test is run. If the
input is left in the true, it is ignored after the first
overspeed test.
run
(Run)
If drive is enabled through the DRIVE ENABLE
logic input, this function will start drive operation.
run down
(Run Down)
If drive is enabled through the DRIVE ENABLE
logic input, this function will start drive operation
with negative speed commands.
Note: if both RUN UP and RUN DOWN are true
then the run is not recognized.
Note: if DIR CONFIRM (C1) is enabled, this
input will not change the polarity of the speed
command and will be used to confirm the
polarity of the analog speed command as well
as starting the operation of the drive.
run up
(Run Up)
If drive is enabled through the DRIVE ENABLE
logic input, this function will start drive operation
with positive speed commands.
Note: if both RUN UP and RUN DOWN are true
then the run is not recognized.
Note: if DIR CONFIRM (C1) is enabled, this
input is also used to confirm the polarity of the
analog speed command as well as starting the
operation of the drive.
s-curve sel 0
(S-Curve Select bit-0)
s-curve sel 1
(S-Curve Select bit-1)
These two bits are used to select one of four s-
curve selections.
step ref b0
(Speed Selection bit-0)
step ref b1
(Speed Selection bit-1)
step ref b2
(Speed Selection bit-2)
step ref b3
(Speed Selection bit-3)
Four inputs, which must be used together as a
4-bit command for multi-step speed selection.