gefran AGy -L Instruction Manual page 5

If the front plate has to be removed because of ambient temperature higher than 40 degrees, the user has to
ensure that no occasional contact with live parts may occur.
Do not connect power supply voltage that exceeds the standard specification voltage fluctuation permissible.
If excessive voltage is applied to the drive, damage to the internal components will result.
Do not operate the drive without the ground wire connected. The motor chassis should be grounded to earth
through a ground lead separate from all other equipment ground leads to prevent noise coupling.
The grounding connector shall be sized in accordance with the NEC or Canadian Electrical Code.
The connection shall be made by a UL listed or CSA certified closed-loop terminal connector sized for the
wire gauge involved. The connector is to be fixed using the crimp tool specified by the connector manufac-
turer.
Do not perform a megger test between the drive terminals or on the control circuit terminals.
Because the ambient temperature greatly affects drive life and reliability, do not install the drive in any
location that exceeds the allowable temperature. Leave the ventilation cover attached for temperatures of
104° F (40° C) or below.
If the Drive's Fault Alarm is activated, consult the chapter 10. TROUBLESHOOTING of this instruction book,
and after correcting the problem, resume operation. Do not reset the alarm automatically by external
sequence, etc.
Be sure to remove the desicant dryer packet(s) when unpacking the drive. (If not removed these packets
may become lodged in the fan or air passages and cause the drive to overheat).
The drive must be mounted on a wall that is constructed of heat resistant material. While the drive is
operating, the temperature of the Drive's cooling fins can rise to a temperature of 194° F (90°C).
Do not touch or damage any components when handling the device. The changing of the isolation gaps or
the removing of the isolation and covers is not permissible.
Protect the device from impermissible environmental conditions (temperature, humidity, shock etc.)
No voltage should be connected to the output of the drive (terminals U2, V2 W2). The parallel connection of
several drives via the outputs and the direct connection of the inputs and outputs (bypass) are not permis-
sible.
A capacitative load (e.g. Var compensation capacitors) should not be connected to the output of the drive
(terminals U2, V2, W2).
The electrical commissioning should only be carried out by qualified personnel, who are also responsible for
the provision of a suitable ground connection and a protected power supply feeder in accordance with the
local and national regulations. The motor must be protected against overloads.
No dielectric tests should be carried out on parts of the drive. A suitable measuring instrument (internal
resistance of at least 10 k /V) should be used for measuring the signal voltages.
In case of a three phase supply not symmetrical to ground, an insulation loss of one of the devices con-
nected to the same network can cause functional problem to the drive, if the use of a delta/wye transformer
is avoided (see par. 3.4).
Note!
If the Drives have been stored for longer than two years, the operation of the DC link capacitors may be
impaired and must be "reformed".
Before commissioning devices that have been stored for long periods, connect them to a power supply for
two hours with no load connected in order to regenerate the capacitors, (the input voltage has to be applied
without enabling the drive).
Note!
The terms "Inverter", "Controller" and "Drive" are sometimes used interchangably throughout the industry. We
will use the term "drive" in this document.