Siemens SED2 Series User Manual

71/126
Siemens Building Technologies SED2 variable speed drives CM1U5192en
HVAC Products Programming 01.2002
P2378
Staging frequency
This parameter is defined as a particular percentage of the maximum output frequency.
This determines the frequency used to switch on or off the relay (DOUT1 or DOUT2)
during staging or destaging.
See the diagram below.
t
t
f
f
5192D04en
PID Off
Relay On
PID On
PID Off Relay Off PID On
VSD freq.
VSD freq.
Staging freq.
Max. freq.
Min. freq.
Staging freq.
Max. freq.
Min. freq.
Factory setting: = 50 % (defined as a percentage = 100%, at fmax = 50 Hz).
P0731 (DOUT1)
Function of the digital output 1 (relay 1)
Set parameter to 2379[0] (relay 1 to motor 1).
Factory setting: 52.3 = VSD fault enabled.
P0732 (DOUT2)
Function of the digital output 2 (relay 2)
Set parameter to 2379[1] (relay 2 to motor 2).
Factory setting: 52.2 = VSD in operation.
Complete parameter setting by changing over to automatic control.

Siemens SED2 Series Specifications

General

Brand	Siemens
Model	SED2 Series
Category	Inverter
Language	English