4
INSTALLATION INSTRUCTION
SENSE LINES INPUT CONNECTOR
–
PINOUT
Connector type: Phoenix Contact, MC 1.5/ 2-G-3.81
Mating part: Phoenix Contact, MC 1.5/ 2-ST-3.81
SIGNAL NAME
PIN #
TYPE
SIGNAL
REFERENCE
LOW LEVEL
HIGH LEVEL
V MAX
I MAX
SENSE+
+
Sense line for Vout+
–
voltage drop
compensation for positive pole
Vout+
-
-
SENSE-
-
Sense line for Vout-
–
voltage drop
compensation for negative pole
Vout-
-
-
LED SIGNALING
LED NAME
COLOR
STATUS
OPERATING CONDITIONS
AC-OK
Green
ON
AC Input Voltage is within operation range
DC-OK
Green
ON
Output is Enabled and Operational
OT/FAIL
Orange
ON
Blinking
Over Temperature conditions inside the unit or FAIL appeared (e.g. Overload)
FW upgrade via RS485-1
SIGNAL INPUT CONNECTOR
–
PINOUT
Connector type:
Würth Elektronik, 61801529221
Mating part:
Würth Elektronik, 61801529321
SIGNAL NAME
PIN #
TYPE
SIGNAL
REFERENCE
LOW LEVEL
HIGH LEVEL
V MAX
I MAX
RS485-1A
1
RS485 Half Duplex, Differential pair 1
RS485-1B
+/-60 mA
@ 60
Ω
, 0 pF
2
-7 to 12 VDC
8 mA
RS485-2A
2
RS485 Half Duplex, Differential pair 2
RS485-2B
+/-60 mA
@ 60
Ω
, 50 pF
2
-7 to 12 VDC
8 mA
ADDR-INIT IN
3
The unit’s address change
required
SRTN
<0.4 VDC
>2.5 VDC
3.6 VDC
0.2 mA
IN OK
4
AC Power Fail Warning - open collector,
external pull-up needed to max. 7 V
SRTN
<0.4 VDC
Pull up
7 VDC
20 mA
OUT OK
5
Output Voltage Fault - open collector, external
pull-up needed to max. 7 V
SRTN
<0.4 VDC
Pull up
7 VDC
20 mA
INHIBIT
6
Output Inhibit -
Open circuit or “High” to
SRTN shuts OFF Vout
SRTN
<0.4 VDC
>2.5 VDC
3.6 VDC
0.2 mA
ENABLE
7
Power Supply Enable pin
–
for unit enable
short this pin to SRTN
SRTN
<0.4 VDC
>2.5 VDC
3.6 VDC
0.2 mA
SRTN
1
8
Internal Ground (Signal Return)
-
-
-
RS485-1B
9
RS485 Half Duplex, Differential pair 1
RS485-1B
+/-60 mA
@ 60
Ω
, 50 pF
2
-7 to 12 VDC
8 mA
RS485-2B
10
RS485 Half Duplex, Differential pair 2
RS485-2B
+/-60 mA
@ 60
Ω
,50 pF
2
-7 to 12 VDC
8 mA
Not Connected
11
-
-
-
-
OT/FAIL
12
Over Temperature /PSU Fail, open collector,
external pull-up needed to max. 7 VDC
SRTN
<0.4 VDC
Pull up
7 VDC
20 mA
PS-PRESENT
13
Power Supply Seated
–
signal internally
connected through 10 Ohm resistor to SRTN
SRTN
-
1 VDC
100 mA
ACSH
14
Active Current Share
SRTN
0.2 VDC
5.0 VDC
7 VDC
0.7 mA
Margin
15
Optional
–
analog signal for Output Voltage
adjustment
–
Not connected
-
-
-
1
SRTN and Vout- are connected together inside the power supply
2
120
Ω
resistors connection required between RS485-xA and RS485-xB on both sides externally
