Rhein-Nadel Automation GmbH
23
VT-BA-ESR-ESM3000-EN_2020 / 07.05.2020 SJ
14.
Service appendix
ATTENTION !
The settings described in this section relating to the service menu are intended for use by skilled persons
because the functions and limits of the feed system can be greatly influenced by their adjustment
It is the responsibility of the supplier of the equipment to decide whether this information should be released
or restricted for use by service engineers only.
The service menu cannot be accessed through the normal menu structure. It can only be enabled by using a
special key code.
14.1. Service Menu
The critical parameters, current limit and user adjustable frequency range are held in a separate service menu. This
menu cannot be reached through the normal menu structure and must be enabled by using an additional code number.
This prevents the unauthorised changing of these sensitive parameters
•
Current Limit
– Protects the coil against overload.
The output current limit is set to the maximum current rating of the coil.
•
Frequency limits
– Protection against unhealthy operation.
The vibrating frequency limits available to the user are fixed.
•
Output voltage limit
100 V
The output voltage limit allows 110v coils to be used on a 230V supply without damage.
Parameter:
Display
Factory
setting:
Entry code:
•
Enable service menu
0 / I
En.C:
0
127
•
Adjust current limit
0...100 %
I.
100
040
•
Set lower frequency
5...300 Hz
F.L.
35
040
•
Set upper frequency
6...300 Hz
F.H.
140
040
•
Limit output voltage 100 V
0 / I
P.Li.
0
040
14.2. Frequency adjustment range
The control unit is supplied with a maximum frequency range of 5…150Hz. Using an adjustable under and over
frequency limits, the user range (parameter F) can be restricted to a maximum ratio of 1:4.
In regulation mode, this restricted frequency range has great importance because it assists with the accurate
determination of the measurement signals from the accelerometer. During the automatic frequency search a maximum
sweep range of 1:4 is possible. The lower (FL) and upper (FH) frequency limits restrict the range. A narrow setting of
the limits of less than 1:4 is possible and also advisable because this ensures that widely different changes of the
frequency cannot occur when the user is setting up the system.
The range of the automatic frequency control (AFC) is also limited by these settings.
A practical setting is +/- 20 % of resonance.
1. Set lower frequency limit.
2. Set upper frequency limit.
5 Hz
300 Hz
F.L.
F.H.
F.L.
F.H.
max. 1 : 4
Possible frequency range
Parameter "F.L." and "F.H."
Menü "C 040"
Usable frequency range
Parameter "F"
Menü "C 008", "C 096", C "020"
