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7. Additional Setup & Calibration for ITC-79-FTF-DIV only:
The ITC-79-FTF-DIV takes the incoming pulses (frequency) and provides a 50% duty
cycle square wave output that is divided by an adjustable division factor.
division factor can be in the range of 1 to 65535 and is encoded in binary on the
jumper strip H1.
all the way to H1-16 which equals 32768.
will stop if no division factor is set up on H1.
Example: to divide the input by 1000
H1-1
H1-2
H1-3
H1-4
The jumpers that are inserted carry the binary weights of
when added together, results in 1000.
Output Selection:
The ITC-79-FTF-DIV can be configured as a 'straight through' instrument or a divider
or a combination of both.
4,5 control the TTL output.
affect the operation of the outputs:
H4-1
input directly
H4-2
divider
H4-3
Position H1-1 carries the weight 1, H1-2 equals 2, H1-3 equals 4,
out
H1-5
out
H1-6
out
H1-7
in
H1-8
Jumpers H4-1,2,3 control the relay output and jumpers H4-
Relay
Relay & 24 VDC follow input directly
Relay & 24 VDC driven by divider
Relay & 24 VDC is same as TTL output
(depending on H4-4,5)
As division by 0 is invalid, the output
the jumpers on H1 must be set as follows:
out
H1-9
in
H1-10 in
in
H1-11 out
in
H1-12 out
The following tables show how the different jumpers
in
H1-13 out
H1-14 out
H1-15 out
H1-16 out
8+32+64+128+256+512 which
TTL Output
H4-4
H4-5
TTL
The
TTL Output follow
Output
driven
by
Dwg. 105133 Page 4
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