SAFETY INSTRUCTIONS
Product Specific Precautions
10
Product Specific Precautions
High voltages capable of causing severe
injury or death by electrical shock are
present in this unit.
•
Do not remove VFD cover for wiring or periodic inspec
-
tions while power is applied, or the unit is in operation.
•
Capacitors inside the drive can still hold lethal voltage
even after power has been disconnected. ALWAYS check if
DC bus charge LED is off and DC voltage on the terminals
DC (+1) and DC (-) is less than 30VDC before working on
VFD wiring. The DC bus capacitors may hold high-voltage
charge for several minutes after the VFD power is discon
-
nected.
•
Perform wiring after VFD has been mounted. Otherwise,
electric shock or bodily injury can occur.
•
Do not apply power to a damaged VFD or to VFD with
missing parts.
•
Do not use VFD if power or motor cable is damaged.
•
Do not handle the VFD or control devices with wet hands
or when standing on a wet or damp surface, or in water.
Risk of bodily injury, electric shock,
or property damage.
•
Install VFD on a non-flammable surface. Do not place
flammable materials nearby.
•
Disconnect the input power if VFD has been damaged.
•
Do not touch VFD after shutting down or disconnecting it.
It can remain hot for a few minutes.
•
Do not allow lint, paper, wood chips, dust, metallic chips
or other foreign material into the drive.
•
Some VFD parameters are set as default to automatically
start VFD in some applications. Disable these parameters
if automatic start is not safe for personnel or equipment.
•
If restart after fault reset is selected, the VFD can start
automatically after fault reset.
•
If required, provide an emergency mechanical brake to
prevent any hazardous conditions if VFD fails during oper
-
ation.
Risk of damage to drive or other equipment.
•
Install and wire VFD according to the instructions in this
manual.
•
Take protective measures against ESD (Electrostatic Dis
-
charge) before touching control boards during inspection,
installation or repair.
•
Do not connect power factor correction capacitors, surge
suppressors, or RFI filter to the VFD output.
•
Check if input power voltage is within acceptable range
before applying power to VFD.
•
Set correct motor data from the motor nameplate and
overload protection parameters for proper motor overload
protection.
•
Do not modify VFD internal components and circuits.
•
Power factor capacitors and generators may become over
-
heated and damaged due to harmonics distortion created
by VFD.
•
The use of any disconnecting device (contactor, disconnect
etc.) in motor circuit during VFD run can cause damage to
VFD power components. Stop VFD before opening the
motor circuit with disconnect or contactor.
•
Use, if possible, an inverter rated or motor with insulation
Class F or higher. For submersible pump motors, use Class
B or higher. The VFD generates high frequency output
pulses with spikes, which can deteriorate motor winding
insulation and eventually damage the motor. The longer
distance to the motor the higher amplitude of these volt
-
age spikes will be applied to motor winding. Any cables
with paralleled wires will increase the amplitude of these
spikes at motor terminals.
•
VFD can operate motor at frequencies higher than 50HZ or
60Hz. Verify the maximum allowed speed with motor and
machinery manufacturers prior to increasing output fre
-
quency because it can overheat motor or damage machin
-
ery.
Содержание Cerus X-Drive
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Страница 3: ...CERUS X DRIVE INSTALLATION AND OPERATION MANUAL Firmware Version 1 1 Franklin Electric Co Inc ...
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