Minimum Load Current - Siemens 3RK1308‑0 00‑0CP0 Series Equipment Manual

Functions
6.4 Motor control
6.4.2

Minimum load current

The minimum load current is 20% of the set motor current, but at least the absolute minimum
current specified in the tables below.
The minimum load current differs between the ET 200SP motor starters and the
fail-safe ET 200SP motor starters:
Load current
Motor/ohmic load of motor starter
Motor load of fail-safe motor starter 0.05
As soon as the minimum current limit is undershot during operation, the fault detection
(residual current detection) picks up.
Disconnection or a warning is triggered depending on the setting of the
"Response to residual current detection" parameter.
Residual current detection cannot be parameterized to "Warn" in the case of
fail-safe motor starters.
See also
DS72 logbook - Read device error (Page 180)
DS92 Read device diagnostics (Page 186)
72
0.1 ... 0.4 A 0.3 ... 1 A
0.05 0.15
0.15
0.9 ... 3 A 2.8 ... 9 A
0.18 0.56
0.45 1.4
Motor starter (3RK1308‑0**00‑0CP0)
Equipment Manual, 11/2019, A5E34821005002A/RS-AC/003
4 ... 12 A
0.8
2