Datasheet

ManualsBrandsSelectron ManualsMonitoring RelaysFrequency Monitoring Relay 2CO

ESG 6.26

Indicators

Green LED ON: indication of supply voltage

Green LED flashes: indication of ON-Delay

Red LED Max/Min ON/OFF: indication of failure of the

corresponding threshold

Red LED Max/Min flashes: indication of tripping delay of the

corresponding thereshold

Red LED UFailure ON/OFF: voltage failure

Yellow LED ON/OFF: indication of relay output

Time ranges

On-Delay:: Adjustment range 0 ... 10 s

Tripping delay: Adjustment range 0.1 ... 10 s

Frequency monitoring relay for 50/60 Hz

power grids

EMR DF22Q

Functions

Frequency monitoring for 50/60Hz power grids with adjustable thre-

sholds, timing for ON-Delay and tripping delay separately adjustable

and the following functions which are selected by means of rotary switch:

Nominal frequency 50Hz:

WIN 50Hz

- Monitoring the window between Min and Max

WIN+LATCH 50Hz

- Monitoring the window between Min and Max with fault latch

Nominal frequency 60Hz:

WIN 60Hz

- Monitoring the window between Min and Max

WIN+LATCH 60Hz

- Monitoring the window between Min and Max with fault latch

• Fault latch

• Power failure detection

• Measuring range 110 ... 400 Vac

• Windowifunction

• Adjustable thresholds

• 2 changers

Reference data

Selectron

EMR Article no.

DF22Q 110 ... 400 Vac 41230040

(Order data see chapter 1)

Connecting voltages

24 ... 240 Vac/dc, Terminals A1-A2 (galvanically separated)

Tolerance: 24 ... 240 Vdc, -20% ... +25% (galvanically separated)

24 ... 240 Vac, -15% ... +10% (galvanically separated)

100% duration of operation

Output relay

2 potential free change-over contacts

Rated voltage: 250 Vac

Switching capacitiy: 750 VA (3A / 250 VAC)

- If the distance between the devices is less than 5mm!

Switching capacity: 1250 VA (5A / 250 VAC)

- If the distance between the devices is greater than 5mm!

Fusing: 5A fast acting

EMR DF22Q

Summary of content (6 pages)

PAGE 1
Frequency monitoring relay for 50/60 Hz power grids EMR DF22Q • Fault latch • Power failure detection • Measuring range 110 ...
PAGE 2
Frequency monitoring relay for 50/60 Hz power grids EMR DF22Q Technical data Nominal consumption Nominal frequency 2 VA (1 W) 48 ... 400 Hz (24 ... 240 VAC) 16 ... 48 Hz (48 ... 240 VAC) Wave form for AC Sinus Ripple at dc 10% Drop-out voltage >15% of the supply voltage Base accuracy 0.5% from FN Adjustment accuracy — Repetition accuracy 0.2% from FN Temperature influence 0,01% / °C Recovery time 500 ms Measuring circuit: Fusing max.
PAGE 3
Frequency monitoring relay for 50/60 Hz power grids EMR DF22Q Function description Window function (WIN, WIN+LATCH) When the supply voltage U is applied, the set interval of the tripping delay (ON-Delay) begins. During this period and independent of the measured value the output relay R remains into off-position. The output relay R switches into on-position after the set interval of the tripping delay (ON-Delay) has expired and if the frequency is within the adjusted window.
PAGE 4
Frequency monitoring relay for 50/60 Hz power grids EMR DF22Q Connection L1 Umax.=3x400 V L2 L3 U = 100 - 240 Vac 24 - 240VAC/DC 0V max.
PAGE 5
Technical safety advice This manual contains the information necessary for the correct utilisation of the products described therein.
PAGE 6
Prescriptions and standards Mechanical data Housings in self-extinguishing plastic material. Protection mode IP 40 Mounting: snapping mode: Fixing on profile rail according DIN 46277/3 (EN 50 022) Connection via contact protected terminals up to 4 mm2, protecting mode IP 20 Environmental conditions Admissible environmental temperatures from -25 ºC ... +55 ºC (corresponds IEC 68-1) Storage and transport temperature from -25 ºC ...