Siemens Midimaster Eco Reference Manual page 68

ECO REFERENCE MANUAL
EXAMPLE 3.
FIXED SPEEDS VIA TERMINAL RAIL
A fan is to be run at 3 fixed speeds using digital inputs to control the speed setting
All settings based on factory settings with the following exceptions :
PARAMETER CHANGES FROM FACTORY DEFAULTS
SETTING
P006 = 2
P007 = 0
P053 = 18
P054 = 18
P055 = 18
P041 = 50
P042 = 40
P043 = 20
L1
L2
L3
N
PE
ITEM
A
B
C
SELECT FIXED FREQUENCIES FROM TERMINALS
SELECT RUN/STOP FROM TERMINALS
FIXED FREQUENCY 3 (P043) TERMINAL 7
FIXED FREQUENCY 2 (P042) TERMINAL 8
FIXED FREQUENCY 1 (P041) TERMINAL 16
FIXED FREQUENCY 1 = 50 Hz
FIXED FREQUENCY 2 = 40 Hz
FIXED FREQUENCY 3 = 20 Hz
FUSES
MAIN CONTACTOR
L1 L2 L3
FAULT CONTACT
19
20
CLOSED = HEALTHY
9
7
8
16
MICROMASTER Eco
MIDIMASTER Eco
U V W
M
SWITCH - RUN AT 20Hz
SWITCH - RUN AT 40Hz
SWITCH - RUN AT 50Hz
DESCRIPTION
A
B
C
BUILDING MANAGEMENT SYSTEMS
(BMS)
OR
SPEED SELECTOR SWITCH
DIP SWITCHES
(NOT REQUIRED)
DESCRIPTION
EG
11-3