holthausen
elektronik GmbH
Electronic Vibration monitoring Unit
ESW
®
-small-Compact
15. Example to adjust the limit value
Analog output 0 to 20mA (10% to 100% = 2mA to 20mA, mean 0.2mA per %)
Example:
Adjust the limit value G1 to 22.5%, and the limit value G2 to 35%:
Measured range 20mm/s
S5
OFF
S6
ON
SET-Mode
active
S2
ON
Balancing of the limit value G1
S3
OFF
Set the output current to 4,5mA via P1 (22.5% of 20mA is 4.5mA)
SET-Mode
active
S2
ON
Balancing of the limit value G2
S3
ON
Set the output current to 7mA via P2 (35% of 20mA is 7mA)
Standard-Mode
(SET-Modus not active)
S2
OFF
Measuring variable “vibration velocity“
S3
On oder OFF
Self test off
S1
OFF
16. Optional alarm memory
Additional supply with alarm memory. After the activation of the alarm relay K1 (and/ or K2)
the unit will remain in the alarm status until an external and manually reset will be activated.
This feature is used in such cases, where the vibration control unit is mounted on
unreviewable and difficult accessible places. Through this advanced memory function every
alarm is registered. Because of variable mounting of one or more parallel connected reset
buttons, it is possible to reset the alarm memory from any place or location.
The reset occurs by connection of the external reset contact (violet wire) to ground or +Ub
(see specific datasheet).
17. Self-test
In order to check the functioning of the ESW
®
-small-Compact, self-test functions have been
integrated into the device. A large part of the functions is automatically monitored when the
device is in operation. Other functions can be checked only manually by pressing the self-
test switch, since these would disturb the running operation.
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