Magnetek DSD 412, Техническое руководство

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DRIVE SETUP AND ADJUSTMENT
62
Functions #183 - #187
Logic Output Selects
The function of relay and open-collector logic
output channels, K3-K7 on the Drive Control
PCB, are programmable. Each output has
several choices of functions. The descriptions
below identify how each option works. Table
4.2.3 identifies how to map a particular
function to a particular output channel. [For
example to program output K6, A1TB1-83 to
indicate when the drive is at zero speed,
option “J”, set function 186 to be “2”.] The
factory default values (1) will program K3-K7
to the same function as older software SA274.
Logic Output Options
A – Excessive Field Current
Relay K3 is picked during normal operating
conditions with N.O. contact closed. Relay K3
drops and contact opens if measured motor
field current ever exceeds 125% of Rated
Field current, function 50. When programmed
to control output K4, the output will be active
during normal operation, and become inactive
if motor field current ever exceeds 125% of
Rated Field current, function 50. This function
can be used as a warning of a malfunction
condition that could cause damage to the
motor field.
B – High CEMF or Low Line
Output becomes active if motor CEMF
becomes greater than 1.09 X drive VAC input,
or if VAC input falls below 0.9 X Rated VAC,
function 9. This is a warning indication that
there may be operating or adjustment
problems associated with too much CEMF or
a drooping power line.
C – Run Engaged
Output becomes active when the drive speed
regulator is in operation. This output is
inactive during armature current ramp-down
or if the contactor is open. May be used as an
indication that the drive is in control and that
the elevator brake may be released.
D – Moving Up
Output becomes active when encoder velocity
is greater than the setting of function 63 in the
UP direction. May be used to verify proper
car direction.
E – Moving Down
Output becomes active when encoder velocity
is greater than the setting of function 63 in the
DOWN direction. May be used to verify
proper car direction.
F – LOW SPEED
Output becomes active when encoder speed
is less than the setting of function 64. May be
used to indicate low speed for door pre-
opening logic.
G – FIELD is UP
Output becomes active when motor field
current has risen above the threshold value
programmed in function 32, or drive is in
operation. May be used to indicate when the
drive Start command will function without
delay.
H –SPEED ERROR is LOW
Output becomes active when Speed Error is
less than function 121 for longer than function
120 seconds. May be used to indicate that
the drive is correctly following the
programmed velocity profile.
I – SPEED ERROR is HIGH
Output becomes active when Speed Error is
greater than function 121 for longer than
function 120 in seconds. May be used to
indicate that the drive is not following the
programmed velocity profile. This is the
opposite logical state of H.
J – ZERO SPEED
Output becomes active when encoder speed
is below the setting of function 63 in either
direction. May be used to indicate that
deceleration is complete and the brake may
be set without any bumps.
K – MOVING
Output becomes active when encoder speed
is greater than the setting of function 63 in
either direction. This is the opposite logical
state of J.
L – LIFT BRAKE
Output K6 becomes active when elevator
brake should be lifted. Will de-energize when
the brake should be dropped.