Parameter Description
p3882 Alternative ESM setpoint source (factory setting 0)
0: Last known setpoint (r1078 smoothed)
1: Fixed speed setpoint 15 (p1015)
2: Maximum speed (p1082)
p3883 BI: ESM direction of rotation signal source (factory setting 0)
0 signal: The direction of rotation of the setpoint configured for essential service mode
is maintained
1 signal: Reversal of the direction of rotation of the setpoint configured for essential
service mode.
p3884 CI: ESM technology controller setpoint (factory setting 0)
Setpoint signal source for p3881 = 4.
If you do not connect a setpoint in p3884, the inverter takes technology setpoint 1
(p2253).
r3889 Number of ESM activations/faults
.00 1 signal: Essential service mode (ESM) activated
.01 1 signal: Direction of rotation inverted
.02 1 signal: Setpoint signal lost
.03 1 signal: Technology controller actual value lost (p2264)
.04 1 signal: Bypass active
.05 1 signal: Technology controller setpoint parameterized (p3884)
.06 1 signal: Technology controller active during essential service mode
.09 1 signal: Reaction OFF1/OFF2 activated
.10 1 signal: Automatic restart aborted (F07320)
Application example
An application example for the essential service mode can be found on the Internet:
http://support.automation.siemens.com/WW/view/de/63969509 (http://
support.automation.siemens.com/WW/view/en/63969509)
Advanced commissioning
6.11 Essential service mode
Converter with the CU230P-2 Control Units
248 Operating Instructions, 09/2017, FW V4.7 SP9, A5E34257946B AE
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