Siemens LMV52.200A2 - Page 262

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Siemens Building Technologies Basic Documentation LMV5... CC1P7550en
HVAC Products 18 Addendum 3: Variable speed drive (VSD) module 13.08.2004
18.4 Connection terminals
Also refer to chapter 9 Connection terminals / coding of connectors.
Functional earth for
shielding connection
X70.4
X70.5
Reserve
Reference ground
X70.2
X70.3
Speed input
MOTOR SPEED INPUT
X71.1
Functional earth for
shielding connection
X71.4
Reference ground
X71.2
X71.3
Power supply for
fuel counter
Input
fuel counter
FUEL COUNTER INPUT GAS
X72.1
Functional earth for
shielding connection
X72.4
X72.2
X72.3
X73.2
X73.3
FC control
0/4...20mA
Reference ground
X73.1
Functional earth
Variable speed drive
Variable speed drive module
LMV5...
X70.1
Power supply for
speed sensor
Reference ground
Power supply for
fuel counter
Input
fuel counter
FUEL COUNTER INPUT OIL
X73.5
X73.6
X73.4
Alarm input
Release of FC
FE
+
-
+
-
+
-
1)
2)
3)
1)
1)
3)
3)
2)
Sensor connections (optional):
1) Inductive NAMUR proximity switch
2) Reed contact
3) Inductive DC voltage proximity switch
with pnp transistor
2
3
21
5
9
Example 1: VSD
Siemens SED2
+ 24 V
D
IN
1
Setpoint
D
OUT
1
+
-
0/4...20 mA
22
a)
a)
a)
b)
55
60
4
5
12
Example 2: VSD
Danfoss VLT 6000
+ 24 V
D
IN
1
Setpoint
D
OUT
1
+
-
7550a17e/0903
0/4...20 mA
18
Shielding:
a) + b) Optional shield connection for rough environmental conditions
b) For shielding the cables on the VSD, refer to the following pieces of documen-
tation:
• Siemens SED2 VSD Commissioning Instructions (CM1G5192en), chapters 4
and 7, or
• Danfoss Operating Instructions VLT 6000 (MG60A703), chapter «Installa-
tion»