Description:
The MS287 is a special version of our Minitrol series counter/
ratemeter.
The standard Minitrol is modified to bring a 60Hz
(50Hz) signal to pin 10 (AC powered units only). The user has the
option of connecting this signal to the A input, B input or both. By
entering the proper scaling factor, the user can scale the input to
read the desired time base. EXAMPLE: If the unit is powered with
115VAC @ 60Hz, The scaling factor for A can be set to yield
different time bases: i.e. 60 yields seconds, 360 yields minutes & 1/
10, 3600 yields minutes, etc. Input B can be scaled the same way
or used as a separate counter.
special can be used in many applications involving time/count
control.
To order this special, add the prefix "MS287" to the
standard Minitrol part number, i.e. MS287MC2A3.
ORDERING NUMBER
EXAMPLE:
MS287
MC2
SPECIAL
TYPE
MRT= 6 digits, counter / ratemeter
with presets and scaling.
MC2= 6 digits, counter only with
presets and scaling.
OPERATING VOLTAGE
A= 110 VAC ± 15% or 11 to 15 VDC
B= 220 VAC ± 15% or 11 to 15 VDC
C= 24 VAC ± 15% or 11 to 15 VDC
COUNT INPUTS
3= Standard, 4-30 VDC Accepts simultaneous inputs.
OPTIONS
1= RS232 Communications
2= RS422 Communications
A= Analog Output (4-20/0-20 mA)
Accessories
Separate non keyboard panel order #34235
Separate keyboard panel - order #34237
MS287 INSTRUCTIONS
MINITROL WITH LINE FREQUENCY TIME BASE
With a little imagination, this
A
3
KESSLER-ELLIS PRODUCTS 10 Industrial Way East, Eatontown NJ 07724
800-631-2165 • 732-935-1320 • Fax 732-935-9344 • http://www.kep.com
Application:
This product special is especially useful for combined counter and
timer control functions. It has been used in applications such as
controlling the lubrication of a gear box in a drilling machine. The
gear box has to be lubricated for 5 seconds every 10 minutes. The
lubricating fluid needs to be changed after 75,000 lubrications.
This is easily accomplished using the MS287MC2A3.
The unit is programmed as follows:
Factor: factor of A = 3600, factor of B = 1.
Count: rst 0 (reset to 0), A sep B (A & B are separate counters), Hi
CPS (0-10KHz input speed).
Relay: A = 5.0 (duration of A relay is 5 seconds), B = 0.0 (duration
of B relay is latched till reset).
Presets: Preset A = 10, Preset B = 75,000
The relay on the machine which is energized when the machine is
running is connected between pin 10 (60Hz) and pin 5 (input A). A
simple solder jumper modification is made on the PC board to
make B a "batch" counter. Counter B will advance once for each
output of A. Relay A is connected to a solenoid valve which
controls the lubricating fluid. 115VAC/60Hz is connected to pins 11
& 12.
1
This system operates as follows:
When the machine is running, the relay on the machine is ener-
gized and the A counter starts to accumulate time. When the A
counter (timer) reaches 10 (preset A), the A counter resets, the A
Relay energizes and opens the solenoid valve for 5 seconds and
the B counter advances one. The system will run this cycle until
the B counter reaches 75,000.
75,000, the B Relay energizes and turns on a light to signal that the
fluid needs to be changed.
SOLENOID
VALVE
To 115 VAC
LIGHT
COM.
N.O
N.C
When the B counter reaches
To 115 VAC
MOV
Recommended
1- COMMON
2- N.O.(N.C./NPN)
3- COMMON
4- N.O.(N.C./NPN)
5- A INPUT
6- B INPUT
7- 12VDC OUT/+DC IN
8- -DC (GROUND)
9- RESET INPUT
10- 60Hz 15V OUT
11- A.C. INPUT
12- A.C. INPUT
99367 7/3/97
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