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Open-loop User Switches C1
67
STALL TEST ENA
(Stall Test Enable)
When enabled, the function checks that motor
current goes at or above a percentage (defined
by STALL TEST LVL(A1)) for defined amount of
time (defined by STALL FAULT TIME(A1)). If
the motor current exceeds the defined
parameters a STALL TEST FAULT will be
declared.
STALLP REGEN ENA
(Regeneration Stall Prevention Enable)
When enabled, the Stall Prevention (Current
Limit) function is enabled during regeneration.
When the defined regeneration current limit is
reached (REGEN TORQ LIMIT(A1)), the stall
prevention function will increase speed in an
effort to shed load. Also, the responsiveness of
the stall prevention function is determined by the
Current Limit Integral Gain (ILIMT INTEG
GAIN(A4)) parameter.
S-CURVE ABORT
(S-Curve Abort)
This parameter, S-CURVE ABORT (C1),
addresses how the S-Curve Speed Reference
Generator handles a reduction in the speed
command before the S-Curve Generator has
reached its target speed.
Disabled
With a normal S-curve function, a change in the
speed command is never allowed to violate the
defined acceleration or jerk rates. If a reduction
in the speed command is issued before the S-
Curve generator has reached its target speed,
then the jerk rate dictates what speed is reached
before the speed may be reduced.
Enabled
The optional S-Curve abort has been selected.
In this case when the speed command is
reduced, the speed reference immediately starts
to reduce violating the jerk limit (thus no jerk out
phase), which could be felt in the elevator.
For optional S-Curve abort to be active requires
that:
•
The speed command source must be
selected as Multi-step (SPD COMMAND
SRC (C1) =multi-step).
•
The S-curve Abort function must be
ENABLED (S-CURVE ABORT (C1) =
enabled).
STOP MODE SEL
(Stopping Mode Selection)
This parameter defines the stopping method. If
the parameter is set to ‘ramp’, the drive will do a
controller stop, apply DC injection braking, and
set the BRAKE PICK logic output to false (or set
mechanical brake, if drive is controlling the
brake). If the parameter is set to ‘coast’, the
drive will immediately disable the drive outputs
and set the BRAKE PICK logic output to false
(or set mechanical brake, if drive is controlling
the brake).
MAINS DIP ENA
(Mains Dip Enable)
When enabled, the function will reduce the
speed (by the percentage defined by the MAINS
DIP SPEED (A1) parameter) when the drive
goes into ‘low voltage’ mode. ‘Low voltage’
mode is defined as when the drive declares a
UV alarm, which is defined by the Input line-to-
line voltage (INPUT L-L VOLTS(A4)) parameter
and the Undervoltage Alarm Level (UV ALARM
LEVEL(A4))
DB PROTECTION
(Dynamic Braking Resistor Protection Selection)
The dynamic braking IGBT is limited as to when
it can be turned “on” (i.e. send power to the
dynamic braking resistors).
The dynamic braking IGBT is allowed to be “on”
while the drive is running (i.e. while the speed
regulator is released) and for a period of ten (10)
seconds after the drive is stopped. If the
dynamic braking IGBT is still “on” ten seconds
after the drive stops running, the drive will turn
“off” the dynamic braking IGBT (thus stop
sending power to the dynamic braking resistors)
and declare a “DB VOLTAGE” fault or alarm
(whether fault or alarm, depends on setting of
this parameter).
AUTO STOP ENA
(Auto Stop Enable)
When enabled, this function will cause the drive
to perform a controlled stop when the speed
reference is removed but the run input is
maintained. The drive will resume running if a
new speed reference is issued.
Содержание HPV 600
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