Page 1 of 2
Johnson Controls Denmark ApS
Christian X's Vej 201 ∙ 8270 Højbjerg ∙ Denmark
Phone +45 87 36 70 00 ∙ www.sabroe.com
CVR No 19 05 61 71
Quick setup guide - Sabroe Vibration Monitoring
0013561 en 2021.03
This guide will help you set up warning and shutdown levels for the Sabroe Vibration Monitoring system (SVM).
For detailed information, please see Sabroe Vibration Monitoring - Functional Description.
1. Prechecks
1. When the compressor is running, make sure the vi-
bration values are read by the PLC on the monitor
screen, see Fig. 1 (1).
2. Make sure the maximum setting of RPM in the bar
graph (4) corresponds to the actual max. RPM.
Max. RPM can be changed in the headline drop-
down menu (5) →Utility screen →IFM01 In- Outputs
→Motor speed max. RPM.
3. Make sure the shown RPM (3) is correct. The RPM
reading should differ max. 5% from the actual RPM,
preferably less. If the indicated RPM is not correct,
check the scaling at the frequency converter output
(0 RPM = 4 mA; Max. RPM = 20 mA).
Fig. 1
2. Setting of alarm and shutdown levels
To set the alarm and shutdown levels, the initial normal level of vibration must be determined.
1. Run the compressor at the expected running
condition.
2. When ready to adjust the capacity, press the green
start button . A counter starts (default 900
seconds).
3. Slowly change the capacity from minimum to maxi-
mum. Stay in maximum capacity for minimum 5
minutes.
4. Possibly repeat several times to ensure representa-
tive measurements.
5. Use F1 (compressor) and F2 (motor) to toggle be-
tween monitor screen and settings screen.
Fig. 2
Page 2 of 2
Johnson Controls Denmark ApS
Christian X's Vej 201 ∙ 8270 Højbjerg ∙ Denmark
Phone +45 87 36 70 00 ∙ www.sabroe.com
CVR No 19 05 61 71
6. When the counter runs out, or the red stop button is pressed, the highest registered vibration level, Fig. 1
(2), on the compressor and motor is saved, and an alarm level (Alm) is set to 2.0 x highest level registered
(default), and a shutdown level (SD) at 3.0 x highest level registered (Fig. 2). Alarm and shutdown factors
and values can be changed manually using the touchscreen fields.
7. On the bearing objects, there is a default delay of 99 seconds for alarm and 30 seconds for shutdown. If the
shutdown trips during starting transients, increase the time delay a little. To reset a shutdown, press the red
“Reset” button.
8. On 1x objects, there is a default delay of 10 seconds for alarm and 10 seconds for shutdown.
3. Evaluate the registered vibration levels
It is important to evaluate the registered alarm and shutdown values. It is a compromise between setting sufficiently
low values to get an early warning about increasing levels, and avoiding nuisance alarms and shutdowns.
Bearing objects: The initial vibration level of the bearing objects is very dependent on the specific compressor/mo-
tor and running condition. Therefore, the values found during “auto alarm setting” should normally be used. If the val-
ues are very low, either the alarm and shutdown factor or level can be increased. This will result in a later warning of
changes in the vibration level. The default values are primarily set to avoid shutdowns during initial start-up and
should not be used as permanent levels.
1x objects: The level on 1x vibration should normally be low by proper alignment and balancing. At low 1x levels
the registered alarm and shutdown levels are accordingly low, see e.g. Fig. 2 where the calculated alarm and shut-
down levels for the 1x objects are below the minimum value of 1 mm/s. To avoid nuisance alarms and shutdowns, it
is normally OK to raise the alarm and shutdown levels to the default values in Table 1.
Sensor Object Low Medium High Default Alm Default SD
1 Compressor NDE Bearing < 4 m/s24 - 7 m/s2> 7 m/s215 m/s230 m/s2
2 Compressor DE Bearing < 4 m/s24 - 7 m/s2> 7 m/s215 m/s230 m/s2
2 Compressor DE 1x < 2 mm/s 2 - 3 mm/s > 3 mm/s 5 mm/s 8 mm/s
3 Motor DE Bearing < 6 m/s26 - 8 m/s2> 8 m/s210 m/s215 m/s2
3 Motor DE 1x < 2 mm/s 2 - 3 mm/s > 3 mm/s 5 mm/s 8 mm/s
4 Motor NDE Bearing < 6 m/s26 - 8 m/s2> 8 m/s210 m/s215 m/s2
Table 1: Vibration levels and default values
4. Password protection
Change of settings is password protected to avoid unintentional changes.
User: dop
Password: dop
/
