Proper Use; Maintenance And Inspection; Maintenance Measures And Intervals - Johnson Controls VSD II Series Installation Manual

System Overview

Proper Use

The VSD Series II frequency inverters are not domestic
appliances. They are designed only for use as HVAC or
pumping system components.
The VSD Series II frequency inverters are electrical apparatus
for controlling variable speed drives with three-phase motors.
They are designed for installation in machines or for use in
combination with other components within a machine or
system.
After installation in a machine, the frequency inverters must
not be taken into operation until the associated machine has
been confirmed to comply with the safety requirements of
Machinery Safety Directive (MSD) 89/392/EEC (meets the
requirements of EN 60204). The user of the equipment is
responsible for ensuring that the machine use complies with
the relevant EU Directives.
The CE markings on the VSD Series II frequency inverter
confirm that, when used in a typical drive configuration, the
apparatus complies with the European Low Voltage Directive
(LVD) and the EMC Directives (Directive 73/23/EEC, as
amended by 93/68/EEC and Directive 89/336/EEC, as
amended by 93/68/EEC).
In the described system configurations, VSD Series II
frequency inverters are suitable for use in public and
non-public networks.
A connection to IT networks (networks without reference to
earth potential) is permissible only to a limited extent,
because the device's built-in filter capacitors connect the
network with the earth potential (enclosure). On earth free
networks, this can lead to dangerous situations or damage to
the device (isolation monitoring required).
To the output of the frequency inverter (terminals U, V, W)
you must not:
connect a voltage or capacitive loads (for example, phase
●
compensation capacitors)
connect multiple frequency inverters in parallel
●
make a direct connection to the input (bypass)
●
Observe the technical data and connection requirements. For
additional information, refer to the equipment nameplate or
label at the frequency inverter, and the documentation.
Any other usage constitutes improper use.
12 VSD Series II LIT-12011772—October 2012 www.johnsoncontrols.com

Maintenance and Inspection

VSD Series II frequency inverters are maintenance free.
However, external influences may affect the function and the
lifespan of the VSD Series II frequency inverter. We
therefore recommend that the devices are checked regularly
and the following maintenance measures are carried out at
the specified intervals.
There are no plans for replacing or repairing individual
components of VSD Series II frequency inverters.
If the VSD Series II frequency inverter is damaged by
external influences, repair is not possible. Dispose of the
device in accordance with the respectively applicable
environmental laws and provisions for the disposal of
electrical or electronic devices.

Maintenance Measures and Intervals

Maintenance Measure
Clean cooling vents (cooling slits)
Check the fan function
Filter in the switching cabinet doors
(see manufacturer specifications)
Check the tightening torques of the
terminals (control signal terminals,
power terminals)
Check connection terminals and all
metallic surfaces for corrosion
Maintenance Interval
If required
6–24 months (depending on the
environment)
6–24 months (depending on the
environment)
Regularly
6–24 months (depending on the
environment)