Rockwell Automation GV3000 AC Pwr Module Ver. 5.0 Hardware Ref, Installation, and Troubleshooting - Manual (Page 61)

7Ć5
7.1 Stopping the Drive
WARNING
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.
Depending upon the requirements of the application, the GV3000 drive can be programmed to
provide either a coastĆtoĆrest or a rampĆtoĆrest operational stop without physical separation of the
power source from the motor. A coastĆtoĆrest stop turns off the transistor power device drivers. A
rampĆtoĆrest 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 terminals 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.
7.1.1 Compliance with EN 60204Ć1: 1992
This section applies to users who must comply with EN 60204Ć1: 1992, part 9.2.5.4, Emergency
Stop.
The GV3000 drive coastĆtoĆrest stop is a category 0 operational stop. The rampĆtoĆrest stop is a
category 1 operational stop. In addition, it is possible to implement a category 2 stop, with power
maintained to the motor at zero speed.
The required external hardwired emergency stop must be either a category 0 or 1 stop, depending
on the user's risk assessment of the associated machinery. In order to fully comply with EN60204Ć 1:
1992, part 9.2.5.4, at least one of the two stop methods must be a category 0 stop. Refer to Appendix
C for more information.
7.2 Wiring the Speed Feedback Device (Vector Regulation Only)
If the GV3000 drive is programmed to provide vector regulation, a speed feedback device (pulse
tachometer) must be installed. Drives using volts/hertz regulation do not require the use of a speed
feedback device. The pulse tachometer connects to terminals 4 to 9 of the terminal strip:
D Terminal 4: Pulse Tachometer Supply +15 VDC
D Terminal 5: Pulse Tachometer Phase A Differential Input
D Terminal 6: Pulse Tachometer Phase A Not Differential Input
D Terminal 7: Pulse Tachometer Phase B Differential Input
D Terminal 8: Pulse Tachometer Phase B Not Differential Input
D Terminal 9: Pulse Tachometer/Regulator Common
Use the following procedure to connect a pulse tachometer to the terminal strip:
Step 1. Connect the pulse tachometer's wires to terminals 4 through 9 of the terminal strip. See
figure 7.3. See table A.6 for additional pulse tachometer specifications.