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V. Electrical characteristics of terminal block X5 inputs/outputs
Insulation type
Connection
Voltage range
Current rating at 24 VDC
Current rating
Test pulse train
< 1 ms at frequencies below 100 Hz
VI. Activating the SWO function (Soft)
A switch (DIP 2), located on the SAM-1A board (see page 11), provides the user with a way to set the various
SAM-1A board functions. In order to activate the safety feature, switch 3 must be set to ON.
5.
INPUT/OUTPUT ASSIGNMENTS
CONNECTOR X20 TECHNICAL SPECIFICATIONS
POWER
internal 24Vdc
SUPPLY
common
24V
•
Power supply
The inputs/outputs (24 V) can be supplied either internally by the SAM-1A or by an external, 24 V power supply.
The SAM-1A is set up for an internal power supply as standard.
To use an external power supply, simply switch the jumper on the three-pin power connector (see electronic board on page 11)
and apply 24 V to the X20 connector (pin 10).
Internal power supply
Rated voltage
24 V
3- S13 contact NO
response time
max. time
Power supply
3
2
1
EXTERNAL 24Vdc
MASSE
WELDING_PROCESS
AUTHORISED_START
ERROR
M_WELD_VOLTAGE
INPUT_3
INPUT_4
INPUT_2
INPUT_1
Rated current
100 mA
SAM-1A
OUTPUT
(feedback)
Dry contact
4- S14 Vcc
20 - 30 VDC
Max. 2 A
8 ms
16 ms
No response
see information on page 24 and 27
X20
10
11
9
12
8
13
7
14
6
15
5
16
4
17
3
18
2
19
1
20
External 24 V power supply
Maximum voltage
24 V
10 V
INPUT
Relay
1- AU_A2 : Earth
2- AU_A2 : VCC
20 - 30 VDC
15 VDC logic threshold
Maximum low voltage at 3 V
10 mA
4 ms
8 ms
No response
ON
1 2
ALIM_LIMIT_+10V
RESERVED_2
MAIN_CURRENT
ARC_DETECT
M_WELD_CURRENT
WIRE_FEED
RESERVED_1
MMI_LOCK
START_PROCESS
START_GAZ
Maximum current
2 A
20 mA
EN
3 4
23
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