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Honeywell
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6
6.
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Before commissioning, note the following directions and warnings:
Internal components and circuit boards of the drive (except for the galvanically
isolated I/O terminals) are live when it is connected to mains potential. Coming
into contact with this voltage is extremely dangerous and may cause death or
severe injury.
The motor terminals U, V, W and the brake resistor terminals (R+/R- (MR4-MR6)
or DC+/R+ and R- (MR7 and bigger)) are live when the drive is connected to
mains, even if the motor is not running.
The control I/O-terminals are isolated from the mains potential. However, the
relay outputs and other I/O-terminals may have a dangerous control voltage pres-
ent even when the drive is disconnected from mains.
Do not make any connections to or from the frequency converter when it is con-
nected to the mains.
After disconnecting the frequency converter from the mains, wait until the fan
stops and the indicators on the keypad go out (if no keypad is attached see the
indicators on the cover). Wait 5 more minutes before doing any work on the con-
nections of the drive. Do not open the cover before this time has expired. After
expiration of this time, use a measuring equipment to absolutely ensure that no
voltage is present. Always ensure abscence of voltage before electrical work!
Before connecting the drive to mains make sure that the front and cable covers of
the drive are closed.
Corner grounding is allowed for the drive types with ratings from 72 A to 310 A at
380…480 V supply and from 75 A to 310 A at 208…240 V supply. Remember to
change the EMC level by removing the jumpers. See chapter 6.3.
