Always use an external fuse to protect the unit. The fuse is needed for reverse voltage and overload protection. For more information, see section Power Supply Cabling.
Nominal supply voltage 12/24 VDC
Operating range 8,4…36 VDC
Undervoltage reset ≤ 8 VDC
Max. 70 V continuous (Stresses above this value may cause permanent damage to the unit.)
The unit has a shutdown circuit which protects the unit and loads against overvoltage. The shutdown circuit cuts off the power feed for the logic and loads in case of overvoltage. The shutdown circuit is activated when voltage exceeds circa 36,8 V. Power feed is restored when supply voltage drops under 36,8 V.
Supply voltage (Uin) maximum continuous current 6 A (with full external load)
GND current sum max 6 A
In this unit, there is only one power supply pin (X1.23).
The ground pin (X1.22) is the recommended pin for the power supply return line. The following table shows the power supply pin locations.
Power supply pins
|
Designation |
Connector / pin number |
Potential |
|
Supply voltage (for logic and power) |
X1.23 |
+12/+24 VDC (8,4…36 VDC) |
|
Ground (for supply voltage) |
X1.22 |
GND |
|
Data ground (for CAN, RS-232) |
X1.9 |
GND |
|
AI ground |
X1.18 |
GND (max current is 100 mA) |
|
I/O ground |
X1.19 |
GND |
|
Supply outputs |
||
|
Reference supply (for external devices) |
X1.16
|
+5 VDC / max 100 mA |
|
|
Always use an external fuse to protect the unit. The fuse is needed for reverse voltage and overload protection. For more information, see section Power Supply Cabling. |
Electrical characteristics
|
Symbol |
Parameter |
Conditions |
Min |
Max |
Units |
|
VI |
Nominal Input Voltage |
|
8,4 |
36 |
V |
|
VI-Load-dump |
Max Input Transient Voltage Level |
(Note 1) |
|
123 |
V |
|
VI-max |
Max Continuous Input Voltage Level |
(Note 2) |
-20 |
70 |
V |
|
VI-ovp |
Overvoltage Threshold Level |
|
typ. 37 |
V |
|
|
VI-uvp |
Undervoltage Threshold Level |
|
typ. 8 |
V |
|
|
Supply voltage monitoring |
|||||
|
VI-range |
Nominal Input Voltage measuring range |
|
0 |
36 |
V |
Note 1: Load dump protection according to ISO7636-2: 2004 pulse 5, Us=+123 V
Note 2: Limited functionality when the voltage is higher than the nominal. If the voltage is less than 7,7 V, the unit is in non-operational state.