DRIVE SETUP
87
remain active. (Dropping of the external
Brake Pick relay will reduce voltage to
the elevator brake coil.)
Elevator Stop with Brake Control:
1. Automatic setting of the Brake and drive
shutdown sequence may begin at any
speed.
2. The Drive RUN command is released by
customer’s logic. This will set the
internal reference speed to zero and
start the Must Stop Timer. The velocity
regulator will continue to control velocity
and current, driving the speed to zero
via the decel rate.
3. When the drive measures encoder
speed as being zero (adjustable by #63)
the Brake Lift and Brake Pick outputs
will de-energize. The drive velocity
regulator will continue to hold zero
speed while the brake drops, as set by
the Brake Drop Timer #90.
4. When the Brake Drop Timer expires,
motor armature current ramp-down will
occur, as set by #85. This will gradually
transfer torque from motor to brake to
help prevent brake ‘thumping’.
5. When Current ramp-down is complete,
the drive will cease operating and open
the contactor.
6. If Brake Auto Stop #92 is ON, AND a
zero speed command is present, AND
the drive is stopped, the sequence of 2
– 5 above will be activated.
NOTE: The drive will turn OFF with the
Drive Run and Enable commands still
active. These signals must be cycled to
recover and re-start from this auto-stop
operation.
7. If the Must Stop Timer #91 expires
before zero speed is achieved, the
Brake Lift and Brake Pick relay outputs
will be de-energized and the drive will
shut down regardless of the actual
velocity. This is a secondary back up
means of ensuring that the elevator will
stop
Содержание DSD 412
Страница 1: ...DSD 412 DC Elevator Drive Technical Manual CS00407 rev 06...
Страница 6: ...6...
Страница 102: ...MAINTENANCE 102 Figure 24 Connector and E prom Locations...
Страница 103: ...MAINTENANCE 103 Figure 25 Test Point Locations...
Страница 115: ...OUTLINE DRAWING 100A 115 Figure 26 Drive Chassis Outline DSD 412 100 Amp...
Страница 116: ...OUTLINE DRAWING 190A 116 Figure 27 Drive Chassis Outline DSD 412 195 Amp...
Страница 117: ...OUTLINE DRAWING 300A 117 Figure 28 Drive Chasis Outline DSD 412 300 Amp...
Страница 118: ...LAYOUT DRAWING 100A 118 Figure 29 Layout DSD 412 100 Amp A3 A1 A2 A2 L1 NEG GND L2 L3 POS...
Страница 119: ...LAYOUT DRAWING 195A 119 Figure 30 Layout DSD 412 195 Amp A3 A1 A2 A2...
Страница 120: ...LAYOUT DRAWING 300A 120 Figure 31 Layout DSD 412 300 Amp A3 A1 A2 A2...
Страница 121: ......