Kistler-Morse KM Weigh II - Manual (Page 11)

harmful to electronics.
Power Fuse
Information
There are two power fuse locations in the
Weigh II. Refer to Table 2-1 for specification
information on each fuse.
Table 2-1. Power Fuse Information
Installing PCBs
The Weigh II arrives from Kistler-Morse with
the specified PCBs installed. However, you
can expand your system by purchasing
optional PCBs and installing them into vacant
positions on the motherboard. There are three
positions on the motherboard of the Weigh II
that accept optional PCBs. Note the following
restrictions on PCB positions in the Weigh II:
• Position 1
4-channel multivessel PCB
• Position 2
5-channel or 8-channel Setpoint PCB
Allen-Bradley RIO PCB
Remote Tare PCB (up to 4-channels)
• Position 3
5-channel or 8-channel Setpoint PCB
Allen-Bradley RIO PCB
Profibus DP
2-channel, 4-channel, or 8-channel
Current Transmitter PCB (for use only
with the AC power version of the
Weigh II)
Combi-Card PCBs
(2 setpoints and 1 current output;
4 setpoints and 1 current output;
or 4 setpoints and 2 current outputs)
A new PCB from Kistler-Morse comes with
the following items:
• PCB
• Two 4-40 x
1 /
4
PHS screws to secure the
PCB to the Weigh II motherboard
Refer to the applicable drawing in Appendix F
for PCB slot locations and wiring details and
follow this procedure to install a PCB into the
Weigh II:
1. Disconnect power to the Weigh II.
2. Open the door of the Weigh II.
3. Place the PCB in the designated position
on the motherboard. Be sure the PCB
connector inserts completely into the
motherboard connector.
4. Secure the PCB in place with the two
4-40 x 1 /
4
PHS screws supplied with
the PCB.
5. Connect the field wiring to the PCB.
6. Restore power to the Weigh II. Close the
door. Installation is complete.
If you add a 4-channel multi-vessel PCB to
the Weigh II, you must use the Enab and Dflt
functions in the ADC Menu of the Service
Menu to bring the new channels on-line. Refer
to Chapter 7, Service, for the use of those
functions.
Note
Before you use the Dflt function to
bring the new channels on-line, write
down all calibration and setup
parameters. The Dflt function will
erase all existing calibration and setup
parameters. Reenter the parameters
after the new channels are on-line.
Fuse Part No. Purpose Voltage Current
F1 18-1002-01 AC 250 V 1.0 A
F2 18-1033-13 DC 50 V 1.85 A
Chapter 2. Hardware Installation
2-3