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MM1700
FREQUENCY INPUT
SINGLE LIMIT ALARM

FEATURES
bulletProvides a DPDT Relay Contact Closure at a Preset Frequency Input
bulletStandard Fail-Safe Operation
bulletRed and Green LED Alarm Status Indicators
bulletAdjustable Deadband
bulletLatching Alarm Available (MM1710)
bulletFrequency Limit 60 kHz
bullet50 mV to 100 V Peak Input Sensitivity
bulletAdjustable Threshold for Low Level Noise Rejection
bulletUnlimited* Choice of Input Ranges
bulletInput Pullup Resistor Available
bulletChoice of Power Options
bullet10 + 5 Year Warranty


DESCRIPTION

The MM1700 monitors a frequency input signal and trips a dpdt, 5 A relay when the input exceeds the desired level. Normal operation has the relay energized for the non-alarm condition and de-energized for an alarm condition. This provides a fail-safe alarm condition for loss of power to the module. The alarm has a set of red/green LEDs to indicate alarm status.

A deadband adjustment allows a deadband of 0.5% to 100% of span to be set into the module. The deadband is symmetrical about the setpoint.

With the latching option, the alarm has no deadband control. Once the limit has been reached the alarm latches and power to the module must be momentarily interrupted to reset the alarm.

The wide range of input sensitivity allows the MM1700 to be driven from low level magnetic pickups as well as logic level signals. A threshold adjustment sets the minimum input amplitude the module will process. This allows the user to trade off sensitivity versus noise rejection. An optional pullup resistor (Option P) permits use with contact-closure or open-collector inputs.

The module includes filtering and conditioning to reduce susceptibility to transients and noisy operations.

TYPICAL APPLICATIONS

Flows, speed of motors, conveyors, etc., control/limit alarm.

MOUNTING

The module is designed to plug into a standard 11-pin relay socket.  Part number MP011 is a molded plastic socket suitable for mounting on a flat surface or 2 3/4 inch wide PVC snap track (TRK48).  Use CLP-1 hold-down clip if needed.  A Killark HK Series explosion-proof housing with dome and 11-pin socket is available (HKB-HK2D-11).  A DIN rail mounted socket (P/N DMP011) is available for 35mm symmetrical rail.

SPECIFICATIONS

INPUT RANGE
 select any range from
  0 to 10 Hz min
  0 to 60 kHz max

INPUT SENSITIVITY
any voltage from 50 mV to 100 V peak

INPUT IMPEDANCE
100 kilohms

OPTION P
Pullup resistor to + input
  10 kilohms
Open-circuit voltage
  +12 VDC

SETPOINT
0 to 100% of span

DEADBAND
0.5% to 100% of span

ACCURACY
±0.1% of span

COMMON MODE REJECTION
120 dB, DC to 60 Hz

OPERATING TEMPERATURE
 14°F to 140°F
-10°C to  60°C

TEMPERATURE STABILITY
±0.02% of span/°C max

RELAY CONTACTS
1 (dpdt)
Resistive Load:
  5 A max, 150 W max
  220 VAC max, 30 VDC max

Inductive Load
  (Power factor > = 0.4):
  2.5 A max, 75 W max
  220 VAC max, 30 VDC max

TRANSISTOR OUTPUT (Option V)
Relay driver
  (12 V coil, > = 220 ohms)
or open-collector outputs
  sink 100 mA, 30 V supply max

LINEARITY (Option T)
±0.01% of span

POWER
115 VAC 10%, 50/60 Hz
  (2.5 W max)
230 VAC 10%, 50/60 Hz
  (2.5 W max)

DC Power Option
  24 VDC (limits 21-32 VDC)
  Isolation, DC power supply to input common
    10 megohms

 

* Within specified range limits


CONNECTIONS
Power, AC L1 or DC +
Power, AC L2 or DC -
Input +
Input -
Relay Set 1 NO
Relay Set 1 C
Relay Set 1 NC
Relay Set 2 NO
Relay Set 2 C
Relay Set 2 NC		 PINS
1
3
4
5
6
7
8
9
10
11