VDD
Vibration Diagnostic Device
User Manual
Document in original language | · 003
GB
© Copyright Systemair AB
All rights reserved
E&OE
Systemair AB reserves the rights to alter their products without notice.
This also applies to products already ordered, as long as it does not affect the previously agreed specifications.
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1 General information .. ....... .... ......... .... .... ......... ..1
1.1 Notice symbols . .... ......... .... .... ..... .... .... ...1
1.1.1 Instruction symbols.. .... .... ......... ..1
2 Important safety information . .... .... .... ..... .... .... ...1
3 Warranty....... .... .... ......... .... .... .... ..... .... .... .... ..1
4 Extension of maintenance intervals . .... .... ......... ...1
5 Description ... .... .... ..... .... .... ......... .... .... ......... ..2
5.1 Intended use .... .... .... ......... .... .... ......... ...2
5.2 Components of VDD. .... .... ..... .... .... .... ..... .2
5.3 Connection data.... .... .... ......... .... .... .... ....2
6 Preconditions ..... .... .... ......... .... .... .... ......... .... ..2
6.1 Preconditions to be considered on
site ... .... ......... .... .... .... ......... .... .... ........2
7 Limit values ...... .... .... ......... .... .... ......... .... .... ...3
8 LED display .... .... .... ......... .... .... ..... .... .... .... .... ..4
9 External process signals .... ......... .... .... ......... .... ..5
10 History values. .... .... ......... .... .... .... ..... .... .... .... ..5
11 Accessories.... .... .... .... ..... .... .... .... ......... .... .... ..5
12 Wiring of the VDD. .... ......... .... .... ......... .... .... .... .6
Contents
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1 General information
1.1 Notice symbols
Note:
Useful information and instructions
1.1.1 Instruction symbols
General information |
1
Instruction
♦ Carry out this action
♦ (if applicable, further actions)
Instruction with xed sequence
1. Carry out this action
2. Carry out this action
3. (if applicable, further actions)
2 Important safety information
♦ Read the operating instructions completely and carefully.
♦ Observe and respect local conditions, regulations and laws.
♦ Tampering with the device can affect the safety of operators and machinery.
3 Warranty
Tampering with the VDD is not permitted and will lead to an exclusion of liability and warranty.
4 Extension of maintenance intervals
Systemair axial fans without VDD need to be maintained after a 20,000/40,000 hours of operation (depending on the
type of motor bearing) or at the latest after 5 years.
The maintenance intervals can be prolonged using VDD, as shown in the table below.
after hours of operation: at the latest after:
without VDD with VDD without VDD with VDD
motor with closed bearings 40000 hours 60000 hours
motor with open bearings 20000 hours 40000 hours
5 years 8 years
5 years 8 years
If the fan is operating with VDD, maintenance action is necessary after above specified time or if the limit values for vi-
bration (see 7 Limit values) are exceeded.
Steps to maintain a Systemair axial fan:
• Check the condition of the shaft sealing rings and shaft bearings and take action if necessary.
• If the motor is equipped with a relubrication device, relubricate according to the specifications of the motor
manufacturer.
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Description
1
2
3
1
3
|
2
5 Description
5.1 Intended use
Fan monitoring and visualisation of
• Vibration velocity (V
• Warning/alarm signal if limit values are exceeded.
• Record of the vibration history values for the last 3 years.
) of motor bearing and fan casing.
rms
5.2 Components of VDD
The VDD is completely parametrised, pre-wired and mounted on the fan. This system is (only) available in combination
with a Systemair Axial fan.
1
Vibration sensor on the casing and
evaluation unit
VNB001
2
Vibration sensor on the motor
VTV122
3
Terminal box
5.3 Connection data
Power supply 9.6...30V DC / 0.33 A
6 Preconditions
• Each fan leaves our plant in an electrically and mechanically perfect condition. This is ensured by 100% inspection,
including a vibration measurement.
6.1 Preconditions to be considered on site
• The fan installation must be carried out according to the fan manual.
• It is fully expected that the foundations upon which the fan is mounted will provide the support and stability necessary to meet the vibration criteria of the fan as it is delivered from the factory.
• The fan manufacturer cannot be responsible for the effects of vibration of drive components added after the factory
test run.
• The fan must be installed with vibration dampers suitable for the respective weight.
• The parameters of the VDD are adjusted according to its fan. Changing any settings of the evaluation unit leads to an
exclusion of liability and warranty.
• The VDD can be installed outside with a weather protection.
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Limit values |
7 Limit values
Limit values for in situ operation adjusted for the VDD. These values were evaluated under consideration of ISO
14694:2003 (Industrial fans - Specifications for balance quality and vibration levels).
Fans < 75 kW (BV–3)
Limit to warning [mm/s] Limit to alarm [mm/s]
11.8
1
2
Motor 6.3
Casing
Fans > 75 kW (BV-4)
Limit to warning [mm/s] Limit to alarm [mm/s]
Motor 4.5
Casing
1
according to ISO 14694:2003 — Seismic vibration limits for tests conducted in situ
2
set by Systemair
1
2
9
Important
If the vibration level increases to the “alarm” level, corrective action should be taken immediately or the fan
should be shut down. Failure to reduce the vibration level to the acceptable recommended level could lead
to bearing failure, cracking of motor parts and fan casing structural welds and, ultimately, catastrophic
failure.
2
9
12.5
7.1
11.8
2
1
2
3
Note:
The standard ISO 14694:2003 specifies the limit values of the motor bearing (measurement on the motor).
The vibration “measurement on the casing” is an additional feature which is not mentioned in the standard
but helps to protect the fan.
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| LED display
4
8 LED display
The LED display shows the vibration velocity (rms) of the casing or the motor. According to the adjusted levels (7 Limit
values, page 3) the segment display changes the colour (green, yellow, red); the switch-on and switch-off delays or
the hysteresis are not considered.
green
1
green
2
green
3
green
4
green
5
green
6
yellow
7
8
red alarm active
7–segment display
9
green
yellow warning level exceeded
red alarm level exceeded
10 Lower points as decimal separators
11
Set button
Parameter setting mode
• Display option “vibration casing” or “vibration motor”
not used
vibration velocity v [mm/s]
not used
value of the casing vibrations
peak value
value of the motor vibrations
warning active
ok
12 Mode/Enter button
• Selection of the parameters and acknowledgement of the
parameter values.
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External process signals |
9 External process signals
Important
External voltage can damage or destroy the sensor/evaluation unit.
♦ Do not apply any external voltage to the terminals.
If the vibration values exceed the Warning/Alarm— limits (see 7 Limit values, page 3), the relevant signals “24V Warning” and/or “24V Alarm” (see 12 Wiring of the VDD, page 6) are activated with a delay of 30 seconds. These signals
can be used for implementation in a building control system e.g.
Note:
To transmit the signals “24V Warning” and “24V Alarm” it may be necessary to use coupling relays in the
controls. Coupling relays are not part of the VDD.
Output logic
The process values (Warning/Alarm) of the motor and casing are combined via a logical OR and provided at the switching output.
5
vibration value (e.g.
Warning) — casing
vibration value (e.g.
Warning) — motor
10 History values
The VDD records history values. The
memory interval is 5 minutes, the
maximum V
range is recorded with a time stamp.
The recording period is around 3
years, the oldest values will then be
overwritten (ring memory). The
history can be read out and reset
using the VES004 software.
(https://www.ifm.com/de/de/
downloadarea/iStepContent).
value in this time
rms
signal: 1
signal: 0
OR
External process signal (e.g.
Warning)
signal: 1
24 V DC
11 Accessories
- Power plug (230 V AC / 24 V DC)
- Connection cable for evaluation unit (VNB001) –> USB
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| Wiring of the VDD
VTV122 VNB001
9,6...30 VDC /
330 mA*
24 VDC /
< 100mA (2 x)**
6
12 Wiring of the VDD
♦ Electrical connection may only be carried out by adequately qualified persons.
♦ Do not apply any external voltage to the terminals.
External voltage can damage or destroy the sensor/evaluation unit.
By customer
• * Power supply
• ** Warning / Alarm
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Systemair GmbH
Seehöfer Str. 45
97944 Boxberg
Germany
Tel.: +49 (0)7930/9272-0
Fax: +49 (0)7930/9273-92
info@systemair.de
www.systemair.de
VDD · User Manual · · en_GB · 2020-12-07 · 003
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