BA Systems—Petershvilevej 1—DK-3200 Helsinge—http://www.basystems.dk
9
BAS 918S/929S
Manual
Terminal descriptions:
Terminal
label
Definition
Notes
240VAC
2 terminals
N = Nul
L = phase (Line)
100V-240V AC, 50Hz or 60Hz
Power supply. May be substituted by
24VAC or 24VDC
24VAC/DC
2 terminals
N = Nul / DC-
L = fase / DC+
24VAC, 50Hz - 60Hz or 24VDC, minimum 10W
When connected, 240VAC is discon-
nected in the controller internally.
May supply 24VDC/4W when
240VAC is sourcing power.
DOX (1-11) 2 terminals per I/O channels, Electronic relay. No
polarization required.
AC or DC
maximum 240VAC @ 1A
maximum 400VDC @ 1A
3750V Rms isolation
DIX (1-4)
DICOM
Potential free contact inputs with one common termi-
nal (DICOM) to be used in relation with each DIX
terminal.
DICOM is a 5V DC voltage, sourc-
ing maximum 50mA out. Protected
against voltage inputs up to +75V
peak. AC voltage protection only by
resistive fuse.
STPB
4 terminals for Stepper motor connection, maximum
4W drive capability. Up to 24V drive.
24VAC/DC power supply for extend-
ed drive capability. Max 20W pr
channal.
STPA
Secondary Stepper motor connection. As above.
2 terminals combined with AO cur-
rent output capability. Not coexist-
ing, i.e. controller mounted with ei-
ther AO current output or second
stepper motor capability
OPX (1-3)
3 terminals for communication module support
Module to be mounted from factory
and must be ordered when the con-
troller is ordered.
Modules available:
MBUS
RS485
KNX
LON
WMBUS
AOX (1-4)
2 terminaler for each analog output channel. Must be
polarized as indicated by + and – signs.
Output type
0/2-10V with max 10mA load
0/4 –20mA current loop, channel 3 and 4 only,
combined with Stepper motor output A.
When using current mode the – ter-
minal is still to be used at the primary
terminal block.
Protected against reverse polarity and
input voltages up to 40V
AIX (1-10)
2 terminals for each I/O channel. Must be polarized
as indicated by + and – signs.
Capability per I/O number:
Channel 1..10: 0-1600 ohm (PT1000)
Channel 1,3,5,7,9,10: 0/2-10V
Channel 9,10:0/4-20 mA DC
Channel 9,10:0..44900 ohm (NTC)
Protected against reverse polarity and
input voltages up to 40V.
