Motor Protection
7.1 Overload Protection
SIMOCODE PRO V PN FDI
Programming and Operating Manual, 05/2020, A5E44499659002A/RS-AA/001
27
Response at Pre-Warning Level (I>115%I
s
)
The response of SIMOCODE pro can be additionally adjusted in case of overload (disabled,
signaling, warning).
Delay pre-warning (CiR)
The "delay" parameter (default: 0.5 s) is used to determine the interval during which the pre-
warning level (1.15 x I
s
) must be constantly exceeded before SIMOCODE pro executes the
desired response. Otherwise, there is no reaction.
In case of phase failure or unbalance > 50 %, this pre-warning is already issued at approx.
0.85 x Ie.
Reset
If the "Reset" parameter is set to "Auto", the "Overload", "Overload + unbalance" and
"Thermistor" faults are acknowledged automatically
● if the cooling down period has expired
● if the thermistor value has decreased to the resetting value according to specification.
If the "Reset" parameter is set to "Manual", the errors must be acknowledged by a reset
signal:
● "Reset" button on the basic unit
● "Reset" button on the operator panel
● "Reset" standard functions. For this reason, the "Reset - input" inputs (plugs) must be
connected to the corresponding sockets, e.g. using reset via the bus.
Note
The "Auto reset" mode of operation may not be used in applications in which an unexpected
restart of the motor can lead to damage to persons or objects.
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