Siemens SINAMICS G120 Operating Instructions Manual page 291

Interaction with the "Hibernation mode" function
In order that the "Cascade control" and "Hibernation mode" functions operate together without
any conflict, you must make the following settings in the cascade control:
● p2392 < p2373
The restart value of the hibernation mode (p2392) must be lower than the activation
threshold for the cascade control (p2373).
● p2373 < p2376
The activation threshold for cascade control (p2373) must be lower than the overload
threshold for the cascade control (p2376).
● It is not permissible that the main drive is in the hibernation mode.
● The actual speed must be higher than the restart speed for hibernation mode
(p1080 + p2390) × 1.05.
● The value for the activation delay of the cascade control (p2374) must be longer than the
ramp-up time from hibernation mode (t
t
Setting parameters and activating the cascade control
Parameter
p2200
p2251
p2370
p2371
p2372
p2373
p2374
p2375
p2376
p2377
p2378
Converter with the CU230P-2 Control Units
Operating Instructions, 09/2017, FW V4.7 SP9, A5E34257946B AE
= [(p1080 + p2390) × 1.05 × p1120 × p1139] / p1082
y
Description
Technology controller enable (factory setting: 0)
1: Activate technology controller
Technology controller mode (factory setting: 0)
0: Technology controller as main speed setpoint
Cascade control enable (factory setting: 0)
1 signal: Cascade control is enabled
Cascade control configuration (factory setting: 0)
See also p2372 and the above table.
Cascade control - motor selection mode (factory setting: 0)
Specifying the motor connection sequence
0: Fixed procedure as set in p2371
1: Cascade control after absolute operating hours
2: Automatic replacement after completed operating hours
3: Automatic replacement after absolute operating hours
Cascade control - activation threshold (factory setting: 20%)
Cascade control - activation delay (factory setting: 30 s)
Cascade control - deactivation delay (factory setting: 30 s)
Cascade control - overload threshold (factory setting: 25%)
Cascade control - interlock time (factory setting: 0 s)
Cascade control - activation/deactivation speed (factory setting: 50 %)
).
y
Advanced commissioning
6.21 Cascade control
291