Tel +1 (717) 767-6511
Fax +1 (717) 764-0839
MODEL IFMA - DIN-RAIL FREQUENCY TO ANALOG CONVERTER
The Model IFMA accepts a frequency input, and outputs an analog voltage or
current in proportion to the input frequency, with 0.1% accuracy. The full scale
input frequency can be set to any value from 1 Hz to 25 KHz, either with a
frequency source, or digitally with the on-board rotary switch and push-button.
The IFMA utilizes a seven position DIP switch, a rotary switch, a push-button
and two indication LEDs to accomplish input circuit configuration, operational
parameter set-up, and Input/Output indication. The input circuitry is DIP switch
selectable for a variety of sources.
The indication LEDs are used during normal operation to display the input
and output status of the IFMA. These LEDs are also used to provide visual
feedback to the user of the existing parameter settings during parameter set-up.
The IFMA operates in one of four output modes. The programmable minimum
and maximum response times provide optimal response at any input frequency.
The unit is equipped with a universal mounting foot for attachment to
standard DIN style mounting rails, including top hat profile rail according to EN
50 022 - 35 x7.5 and 35 x 15, and G profile rail according to EN 50 035 - G 32.
All safety related regulations, local codes and instructions that appear in the
manual or on equipment must be observed to ensure personal safety and to
prevent damage to either the instrument or equipment connected to it. If
equipment is used in a manner not specified by the manufacturer, the protection
provided by the equipment may be impaired.
AC Operation: 85 to 250 VAC, 48 to 62 Hz; 6.5 VA
DC Operation: 9 to 32 VDC; 2.5 W
Power Up Current: Ip = 600 mA for 50 msec. max.
2. SENSOR POWER: (AC version only) +12 VDC ±25% @ 60 mA max.
3. OPERATING FREQUENCY RANGE:
From 0 Hz to 25 KHz; user selectable.
4. SIGNAL INPUT: DIP switch selectable to accept signals from a variety of
sources, including switch contacts, outputs from CMOS or TTL circuits,
magnetic pickups, and all standard RLC sensors.
Current Sourcing: Internal 1 K pull-down resistor for sensors with current
sourcing output. (Max. sensor output current = 24 mA @ 24 V output.)
Current Sinking: Internal 3.9 K pull-up resistor for sensors with current
sinking output. (Max. sensor current = 3 mA.)
CAUTION: Risk of Danger.
Read complete instructions prior to
installation and operation of the unit.
SIMPLE ON-LINE RANGE SETTING
(Using Actual Input Signal or Signal Generator)
USER SETTABLE FULL SCALE FREQUENCY FROM
1 Hz to 25 KHz
FOUR OUTPUT OPERATING RANGES
(0 to 5 V, 0 to 10 V, 0 to 20 mA, and 4 to 20 mA)
PROGRAMMABLE INPUT CIRCUIT ACCEPTS OUTPUTS FROM A
VARIETY OF SENSORS
85 to 250 VAC and 9 to 32 VDC POWERED VERSIONS
LOW FREQUENCY CUT-OUT AND OVERRANGE INDICATION
3-WAY ELECTRICAL ISOLATION (POWER/INPUT/OUTPUT)
INPUT AND OUTPUT INDICATION LEDs
Low Bias: Input trigger levels V
sensitivity when used with magnetic pickups.
Hi Bias: Input trigger levels V
Max. Input Signal: ±90 V; 2.75 mA max. (With both Current Sourcing and
Current Sinking resistors switched off.)
5. SIGNAL VOLTAGE OUTPUT (Selectable):
0 to 5 VDC @ 10 mA max.
0 to 10 VDC @ 10 mA max.
6. SIGNAL CURRENT OUTPUT (Selectable):
0 to 20 mA @ 10 VDC min.
4 to 20 mA@ 10 VDC min.
7. OUTPUT COMPLIANCE:
Voltage: 10 V across a min. 1K load (10 mA). Factory calibrated for loads
greater than 1 M.
Current: 20 mA through a max. 500 load (10 VDC).
8. ACCURACY: ±0.1% of full scale range (±0.2% for 0 to 5 VDC range).
Voltage : 3.5 mV min.
Current: 5 μA min.
DIMENSIONS In inches (mm)
CAUTION: Risk of electric shock.
For more information on Pricing, Enclosures & Panel Mount Kits refer to the
RLC Catalog or contact your local RLC distributor.
Bulletin No. IFMA-F
Drawing No. LP0340
UL Recognized Component,
File # E137808
= 0.25 V, V
= 0.75 V; for increased
= 2.5 V, V
= 3.0 V; for logic level signals.
PART NUMBERS FOR AVAILABLE
9 to 32 VDC
Pulse Rate to Analog Converter
85 to 250 VAC