Yaskawa MicroTrac DSD Drives Digital Tach - Manual (Page 6)

6
examples of valid thumbwheel switch bank
configurations:
5 digits and a sign
6 digits
2 digits
The thumbwheel switches are scanned by
pairs, starting from the least significant pair
in the Thumbwheel Selector Switch
Assembly. The scanning will continue until
one of the following occurs:
1. All 3 pairs are scanned.
2. A negative sign is scanned.
3. An invalid thumbwheel switch
setting is scanned.
When the scanning is complete, any
unscanned significant digits are set to 0.
The Thumbwheel Switch Banks are labeled
B0 through B8.
Analog Outputs. There is provision for 2
non-isolated analog outputs. The outputs
have a range of +/- 10 VDC with respect to
common, are single ended, and have an
output drive limited to +/- 4 mA. The D/A
conversion accuracy is +/- 0.4% with 12 bits
of resolution over the full scale range. The
signal names are labeled ANOUT1 and
ANOUT2.
Connection terminals are provided that will
supply COMMON and SHIELD tie points.
Logic Outputs. There is provision for 4
non-isolated logic outputs. Each output is
capable of sinking 200 mA to COMMON
when in the on state (when a logic 1 is
written). When in the off state (when a logic
0 is written), the output will float. The
signal names are labeled LOGIC OUT 1
through LOGIC OUT 4.
Connection terminals are provided that will
supply +24 Vdc, COMMON, and SHIELD tie
points.
Relay Contact Outputs. There is provision
for four relays with one form C type and
three form A type contacts being brought to
the connector. The maximum switching
voltage is 36 VAC/VDC. The maximum
switching current is 0.5 A. The signal
names for the form C contacts are labeled
K1-C, K1-NO, and K1-NC. The signal names
for the form A contacts are labeled K2-C,
K2-NO through K4-C, K4-NO.
INSTALLATION AND HOOKUP
This board is factory installed in the
drive and should require no further
connections to be made to it. However, if it
should become necessary to install the
board in the field, then the following steps
should be taken:
WARNING
HAZARDOUS VOLTAGES CAPABLE OF
SEVERE INJURY OR DEATH MAY BE
PRESENT WITHIN CABINET. BEFORE
OPENING CABINET DOOR, DISCONNECT
AND LOCK-OUT INCOMING POWER.
CAUTION
I/O 784-10