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Mighty Module MM1700 Frequency Input Dual Limit Alarm

MM1700 Frequency Input Dual Limit Alarm

Mighty Module,MM1700,Frequency,Input,Dual Limit AlarmDescription

The MM1720 monitors a frequency input signal and provides two sets of spdt, 5 A alarm relays with two independently adjustable setpoints. Each setpoint has a set of red/green LEDs to indicate alarm status. When the input is between the setpoints, the relays are normally de-energized.  When the signal exceeds a particular setpoint, the relays become energized. To provide a fail-safe operation (loss of power resulting in an alarm state), select Option RR. The module can be supplied as a HI/HI, HI/LO, or LO/LO alarm (HI/LO supplied if not specified).

Standard deadband on both alarms is fixed at 0.5% of span (Option A provides adjustable deadband of 0.5% to 100% of span.) Option D, latching alarms, 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 MM1720 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.

Mighty Module,MM1700,Frequency,Input,Dual Limit Alarm Download MM1720 Brochure

Mighty Module,MM1700,Frequency,Input,Dual Limit Alarm Download MM1720 Manual

Features

Mighty Module,MM1700,Frequency,Input,Dual Limit Alarm Provides Relay Contact Closures at Preset Frequency Input
Mighty Module,MM1700,Frequency,Input,Dual Limit Alarm Fail-Safe, Latching, and Adjustable Deadband Available
Mighty Module,MM1700,Frequency,Input,Dual Limit Alarm Red and Green LED Alarm Status Indicators
Mighty Module,MM1700,Frequency,Input,Dual Limit Alarm Frequency Limit 60 kHz
Mighty Module,MM1700,Frequency,Input,Dual Limit Alarm 50 mV to 100 V Peak Input Sensitivity
Mighty Module,MM1700,Frequency,Input,Dual Limit Alarm Adjustable Threshold for Low Level Noise Rejection
Mighty Module,MM1700,Frequency,Input,Dual Limit Alarm Unlimited* Choice of Input/Output Ranges
Mighty Module,MM1700,Frequency,Input,Dual Limit Alarm Input Pullup Resistor Available
Mighty Module,MM1700,Frequency,Input,Dual Limit Alarm Choice of Power Options
Mighty Module,MM1700,Frequency,Input,Dual Limit Alarm 10 + 5 Year Warranty

Typical Applications

Flow, speed of motors, conveyors, etc., control HI/LO limit alarm.

Mounting

The module is designed to plug into a standard 11-pin relay socket.  Part number MP011 is a 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 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
Each alarm
 
0 to 100% of span

DEADBAND
Standard
 
Fixed 0.5% of span

(Option A)
  0.5% to 100% of span

ACCURACY
0.1% of span or 0.02 ohms,
  whichever is greater

COMMON MODE REJECTION
120 dB, DC to 60 Hz

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

Inductive Load
  1/8 HP max at 120/240 VAC

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

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

TEMPERATURE STABILITY
0.02% of span or 0.025%C/C
  whichever is greater

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 1 NO
Relay 1 C
Relay 1 NC
Relay 2 NO
Relay 2 C
Relay 2 NC
PINS
1
3
4
5
6
7
8
9
10
11
METEX CORPORATION LIMITED

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