Siemens LMV51 Series Basic Documentation page 263

Connection symbol
X70
2 Wire
3 W ire - PNP
X71 Usensor
2 Wire
Pulse-IN
3 W ire - PNP
X72 Usensor
2 Wire
Pulse-IN
3 W ire - PNP
X73
Start - OUT
12-24VDC Alarm-IN
0/4-20mA Setpoint OUT
Siemens Building Technologies
HVAC Products
18.5 Description of the connection terminals for the
variable speed drive module
PIN1 x
Usensor
Pulse-IN
PIN2 x
Reserve
PIN3 x
FE
PIN4
PIN5 x
PIN1 x
PIN2 x
FE
PIN3 x
PIN4 x
PIN1 x
PIN2 x
FE
PIN3 x
PIN4 x
PIN1 x
PIN2 x
PIN3 x
PIN4 x
PIN5 x
FE
PIN6 x
Basisdokumentation LMV5...
18 Addendum 3: Variable speed drive (VSD) module
Description
Power supply for speed sensor
Speed input
Reference ground
Reserve
Functional earth for shield connection
Power supply for fuel meter
Fuel meter input gas
Reference ground
Functional earth for shield connection
Power supply for fuel meter
Fuel meter input oil
Reference ground
Functional earth for shield connection
Reference contact
Release contact
Alarm input
0 / 4...20 mA control of variable speed drive
Reference ground
Functional earth
Electrical rating
approx. DC 10 V
max. 45 mA
Uin max = DC 10 V
Uin min high level = DC 3 V
Uin max low level = DC 1.5 V
approx. DC 10 V
max. 45 mA
Uin max = DC 10 V
Uin min high level = DC 3 V
Uin max low level = DC 1.5 V
approx. DC 10 V
max. 45 mA
Uin max = DC 10 V
Uin min high level = DC 3 V
Uin max low level = DC 1.5 V
max. AC / DC 24 V
max. 2 A
DC 0...24 V
0...20 mA
RLmax = 750 Ω
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CC1P7550de
21.07.2004