User Manual

Technical Manual for Master Terminals of the Series IF 152x
Page 12
MPU main board 02-0448 index A (with J 16 connector and Br. 15)
1 MPU main board 02-0448 index A 1c Address selection di
p
switch
(
all off
)
1a RESET button and dip switch for cold reset 1d Contrast of display regulation potentiometer
1b Jumper to disconnect lithium battery (38-0002) 1g Memory expansion connector
1
J 10
J 6
J 7
J 8
J 2
J 11
J 106
+
-
J 1
R46
S
BAT
ON
Br. 11-14
Br.
31
Br.5
Br.29
Br.9
Br.27
Br.
103
Br.
104
J 112 J 104
J 110
ON
ON
J 16
Br.15
R 46
ON
1 2 4 8
OFF
S 1
ON
OFF
+
BAT
RUN
cold sw
ON
OFF
LED
RTS
1a
1b
1c
1d
1g
Br. 29
Br. 9
1e
Br. 27
1f
Br. 15
1h
A
B
Solder
j
um
p
ers
(
Pos. 1e
,
1f
,
O
p
en Closed
Br. 27 Operating Voltage: 10.5 V to 38 VDC (Pos.1f) 20.5 V to 38 VDC
Br. 29 Display back lighting: On, during power down (1e) Off, during power down
Br. 15 A/ D Converter A B
Control LEDs
The control LEDs RUN and RTS on the solder side of the MPU board indicate the operating statuses.
RUN LED
This LED is always on during normal operation. It is off if the processor has been halted or if the
controller program is not active.
RTS LED
In normal operation, this LED monitors the RS 485 data interface to the IF terminals. It flashes if both
the master terminal and the IF terminals are connected correctly.
After a cold boot this LED signalizes the run of the RAM test. It flashes rhythmically during this phase.
Cold Boot / Debug Switch and RESET Button
Cold boot switch
The cold boot switch is used for deleting, testing and initializing the C-RAM. It is usually only used
after initial operation or after the controller software has been exchanged. During running operation,
this switch must be set to the position marked OFF. See chapter "Initial Operation" for further
information on the cold boot.
Debug switch
The debug switch is used for testing purposes. During running operation, it must be set to the position
marked OFF.
RESET button
The RESET button is used to "restart" the master terminal and also to execute a "cold boot" if the cold
boot switch is set to the position marked ON.