Rockwell Automation GV3000/SE AC Drive 30-100HP, 230VAC V6.04 Hardware Ref, Install, Troubleshooting - Manual (Page 56)

7-6
GV3000/SE 230 VAC 30-100 HP Drive, Hardware Reference Version 6.04
7.1 Stopping the Drive
ATTENTION: The user must provide an external, hardwired
emergency stop circuit outside of the drive circuitry. This circuit must
disable the system in case of improper operation. Uncontrolled
machine operation may result if this procedure is not followed. Failure
to observe this precaution could result in bodily injury.
ATTENTION: When P.055 is set to ON, the STOP/RESET key is
functional only from the selected control source. As a safety
precaution, Reliance Electric recommends that an emergency stop
push button be located near the drive in an easily accessible location.
As a further safety precaution, you should post a warning on the drive
to alert personnel that the STOP/RESET key is not functional. Failure
to observe this precaution could result in severe bodily injury or loss of
life.
Depending upon the requirements of the application, the GV3000/SE drive can be
programmed to provide either a coast-to-rest or a ramp-to-rest operational stop
without physical separation of the power source from the motor. A coast-to-rest
stop turns off the transistor power device drivers. A ramp-to-rest stop fires the
transistor power device drivers until the motor comes to a stop, and then turns off
the power devices. The user can also program zero speed with power maintained
to the motor, but in this condition, the drive is not actually stopped. See the
description of terminal 23 and 24 or Stop Type (P.025) for more information on how
to program the operational stop.
In addition to the operational stop, the user must provide a hardwired emergency
stop external to the drive. The emergency stop circuit must contain only hardwired
electromechanical components. Operation of the emergency stop must not depend
on electronic logic (hardware or software) or on the communication of commands
over an electronic network or link.
Parameter P.055 (STOP/RESET Key Disable) can be used to change the operation
of the STOP/RESET key. See the parameter P.055 description in the software
manual for more information.
Note that the user-installed hardwired emergency stop may be used at any time to
stop the drive.
7.2 Wiring the Encoder Feedback Device
(FVC Regulation Only)
If the GV3000/SE drive is programmed to provide FVC regulation, an encoder must
be installed. Drives using V/Hz or SVC regulation do not require the use of an
encoder feedback device. The encoder connects to terminals 4 to 9 of the
regulator's terminal strip:
• Terminal 4: Encoder Supply +15 VDC (250 mA capacity)
• Terminal 5: Encoder Phase A Differential Input
• Terminal 6: Encoder Phase A Not Differential Input
!