Lab.gruppen PLM 20K44 - Manual (Page 262)

Lake Controller Operation Manual Rev 1.5.4
Lake-enabled Amplifier Reference
257
▸ Rational Power Management (RPM) configuration (PLM+ and D Series only)
The maximium upper limit is 600 V, but is capped at the maximium
allowed channel voltage for the specific model. In Bridge mode,
double the normal maximium channel voltage is allowed. Please refer
to the Product Operation Manual for additional information.
Module settings are cross compatible between models and the ISVPL threshold can be set to the voltage
that a speaker may require. If the Module is recalled or copied to a device with a lower output voltage
capability than the configured value, the actual value will be limited accordingly. When using a device with
lower output voltage, a higher configured value can still be adjusted and stored.
The actual ISVPL is the resulting ISVPL (including RPM functionality for PLM+ and D Series. The actual
ISVPL is displayed per Power channel (Pwr). Actual values read from the device are displayed in [brackets]
and calculated values between |vertical lines|. The values are calculated for virtual, offline and standby
frames.
These values correspond to the ISVPL settings adjusted on the PLM or PLM+ Series front panel via MENU
> MODULE > LIMITERS > ISVPL . Threshold values may be adjusted on the front panel interface or on
screen in the same manner as above.
AMPLIFIER GAIN and ISVPL are subject to limits set by the system designer. If you are unable to change a
value, this may be due to restrictions set by the system designer for that parameter. See section 20.10.6.
20.10.3.1 Rational Power Management (PLM+ and D Series only)
Rational Power Management™ (RPM) is a unique Lab.gruppen feature that allows for flexible allocation of
power across channels. It is available in two modes: Auto and Custom.
Auto RPM
The frame automatically allocates power per output channel according to the ISVPL settings in the speaker
preset (Module file). Power that is unused by one output channel is available for use by another output
channel provided the total limit for the amplifier model is not exceeded.
When RPM is active, ‘RPM’ text is displayed next to the Actual ISVPL values. When the specified ISVPL
threshold is reached, ‘RPM’ is displayed green (see Figure 20-10); if the threshold is not reached ‘RPM’ is
displayed yellow.
Custom RPM
An advanced custom power allocation scheme may be created using the CAFÉ software.