M-Maxâ„¢ Series Adjustable Frequency Drive - Eaton Corporation
M-Maxâ„¢ Series Adjustable Frequency Drive - Eaton Corporation
M-Maxâ„¢ Series Adjustable Frequency Drive - Eaton Corporation
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Operational Hazard Warnings<br />
Observe the following Warnings and Cautions.<br />
WARNING<br />
Commissioning is only to be completed by qualified<br />
technicians.<br />
WARNING<br />
Hazardous voltage!<br />
The safety instructions on Page x must be followed.<br />
WARNING<br />
The components in the frequency inverter’s power<br />
section are energized if the supply voltage (line voltage)<br />
is connected. For instance: power terminals L1, L2/N, L3,<br />
R+, R–, U/T1, V/T2, W/T3.<br />
The control signal terminals are isolated from the line<br />
power potential.<br />
There can be a dangerous voltage on the relay terminals<br />
(22 to 26) even if the frequency inverter is not being<br />
supplied with line voltage (for example, integration of<br />
relay contacts in control systems with 230 Vac).<br />
WARNING<br />
The components in the frequency inverter’s power<br />
section remain energized up to five (5) minutes after the<br />
supply voltage has been switched off (intermediate<br />
circuit capacitor discharging time).<br />
Pay attention to hazard warnings!<br />
DANGER<br />
5 MIN<br />
WARNING<br />
Following a shutdown (fault, line voltage off), the motor<br />
can start automatically (when the supply voltage is<br />
switched back on) if the automatic restart function has<br />
been enabled.<br />
(See parameter “P6.13”.)<br />
CAUTION<br />
Operation<br />
Debounced inputs may not be used in the safety circuit<br />
diagram.<br />
Any contactors and switching devices on the power side are<br />
not to be opened during motor operation. Inching operation<br />
using the power switch is not permitted.<br />
Contactors and switching devices (repair and maintenance<br />
switches) on the motor side must never be opened while the<br />
motor is in operation when the frequency inverter is set to<br />
speed control operating mode (P11.8 = 1).<br />
Inching operation of the motor with contactors and switching<br />
devices in the output of the frequency inverter is not<br />
permitted.<br />
CAUTION<br />
Debounced inputs may not be used in the safety circuit<br />
diagram.<br />
Make sure that there is no danger in starting the motor.<br />
Disconnect the driven machine if there is a danger in an<br />
incorrect operational status.<br />
Note: The START button is only functional if the KEYPAD<br />
operating mode is activated.<br />
The STOP button is active in all operating modes. It<br />
can be deactivated with parameter (P6.16 = 0).<br />
Note: Operating ranges must be approved by the motor<br />
manufacturer if motors are to be operated with<br />
frequencies higher than the standard 50 or 60 Hz,<br />
otherwise the motors could be damaged.<br />
M-Max <strong>Series</strong> <strong>Adjustable</strong> <strong>Frequency</strong> <strong>Drive</strong> MN04020003E—April 2011 www.eaton.com 49