Power Supply Wiring
DC Power Supply
A dedicated 24 Vdc power supply is necessary to supply:
-
One or several LTMT main unit including the digital inputs of the LTMT main units.
-
The digital inputs of the LTMT expansion modules.
An additional specific 24 Vdc power supply is necessary to supply:
-
LTMT main unit digital outputs
-
Other devices
The LTMT main unit DC power supply must have the following characteristics:
-
AC/DC converter
-
Galvanic isolation input AC/output DC: 4 kVac minimum at 50 Hz
-
SMPS input voltage: 100–240 Vac (+15%/-20%)
-
SMPS output voltage: 24 Vdc (+/-10%)
The following Schneider Electric ABL8RPS24••• power supplies are recommended:
|
Reference number |
Input voltage |
Output voltage/current |
Maximum number of LTMT main units supplied |
|---|---|---|---|
|
ABL8RPS24100 |
100–500 Vac |
24 Vdc/10 A |
25 |
|
ABL8RPS24050 |
100–500 Vac |
24 Vdc/5 A |
10 |
|
ABL8RPS24030 |
100–500 Vac |
24 Vdc/3 A |
5 |
AC Power Supply
A dedicated AC power supply or uninterruptible power supply (UPS) is necessary to supply:
-
One or several LTMT main unit
-
Digital inputs of the LTMT expansion module
An additional specific AC power supply is necessary to supply:
-
LTMT main unit digital outputs
-
Other devices
The LTMT main unit AC power supply or UPS must have the following characteristics:
-
Isolation transformer
-
Transformer output voltage: 115 or 230 Vac (+15%/-20%)
-
115 Vac output voltage is recommended
-
Power according to the number of LTMT main unit (several AC supplies are recommended)
-
UPS is recommended if voltage is unstable and does not follow standard EN 50160