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Honeywell
Safety 7(96)
1
1. SAFETY
1.1
Warnings
1
The components of the power unit of the frequency converter are live
when NXL is connected to mains potential. Coming into contact with
this voltage is extremely dangerous and may cause death or severe
injury. The control unit is isolated from the mains potential.
2
The motor terminals U, V, W (T1, T2, T3) and the DC-link/brake resistor
terminals –/+ (in NXL ≥1.1 kW) are live when NXL is connected to mains,
even if the motor is not running.
3
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 present even when NXL is disconnected from mains.
4
The frequency converter has a large capacitive leakage current.
5
If the frequency converter is used as a part of a machine, the machine
manufacturer is responsible for providing the machine with a main switch
(EN 60204-1).
6
Only spare parts delivered by Honeywell can be used.
HOT SURFACE
7
The heat sink of types MF2 and MF3 may be hot when the frequency
converter is in use. Coming into contact with the heat sink may cause
burns.
1.2
Safety instructions
1
The Honeywell NXL frequency converter is meant for fixed installations
only.
2
Do not perform any measurements when the frequency converter is
connected to the mains.
3
After disconnecting the frequency converter from the mains, wait until the
fan stops and the indicators on the display go out. Wait 5 more minutes
before doing any work on NXL connections.
4
Do not perform any voltage withstand tests on any part of NXL. There is
a certain procedure according to which the tests shall be performed.
Ignoring this procedure may result in damaged product.
5
Prior to measurements on the motor or the motor cable, disconnect the
motor cable from the frequency converter.
6
Do not touch the IC-circuits on the circuit boards. Static voltage discharge
may damage the components.
ONLY A COMPETENT ELECTRICIAN MAY CARRY OUT
THE ELECTRICAL INSTALLATION
WARNING