OMRON K7DD Advanced Motor Condition Monitoring Device

Operation
power
supply

Power supply voltage
and frequency

K7DD-PQMA: 100 to 240 V AC, 50/60 Hz
K7DD-PQMD: 24 V DC

Operating power
supply voltage range

85% to 110% of the rated voltage

Operating frequency
range

45 to 65 Hz

Power consumption

K7DD-PQMA: 15.7 VA max. (100 to 240 V AC)

K7DD-PQMD: 5.2 W max. (24 V DC)

Recommend
external fuse

T2A, time delay, high-breaking capacity

Ambient operating temperature

-10 to 55°C

Ambient operating humidity

25% to 85%

Storage temperature

-20 to 65°C (with no condensation or icing)

Altitude

2,000 m max.

Insulation resistance

20 mΩ min.
Between the power supply terminals and the other terminals;
Between all the terminals and the case;
Between (communications terminals + trigger input terminals + alarm output
terminals) and the other terminals;
Between (voltage input terminals + CT input terminals) and the other terminals

Dielectric strength

2,000 V AC for 1 minute
Between the power supply terminals and the other terminals;
Between all the terminals and the case;
Between (communications terminals + trigger input terminals + alarm output
terminals) and the other terminals;
Between (voltage input terminals + CT input terminals) and the other terminals

Vibration resistance

Frequency 10 to 55 Hz, 0.35-mm single amplitude, acceleration 50 m/s²,
10 sweeps of 5 min each in X, Y, and Z directions

Shock resistance

100 m/s², 3 times each in X, Y, and Z axes, 6 directions

Degree of protection

IP20

Terminal block type

Push-In Plus

Exterior color

Black (Munsell N 1.5)

Mounting

DIN Track

Weight

Approx. 360 g

Wiring
material

Wire type

Solid or Stranded wire

Wiring material

Copper

Recommended wires

0.25 to 1.5 mm²
AWG 24 to AWG 16

Stripping length
(without ferrules)

8 mm *, 10 mm, 12 mm * without ferrules

Installation environment

Operation voltage: EN/IEC 61010-1 Pollution Degree 2, Overvoltage category II

Measurement circuit: EN/IEC 61010-2-030 Pollution Degree 2, CAT II 600 V or
CAT III 300 V

Industrial electromagnetic
environment

EN/IEC 61326-1 Industrial electromagnetic environment

Safety standards

UL61010-1, Korean Radio Waves Act (KS C 9610-6-2, KS C 9811), RCM, UKCA

Input range
(Displayable
range)

Current

5 A range: 0.275 to 5.5 A
25 A range: 1.375 to 27.5 A
100 A range: 5.5 to 110.0 A
200 A range: 11.0 to 220.0 A
400 A range: 22.0 to 440.0 A

Defined by R.M.S. values using a sine wave.
The power frequency must be within the acceptable
range.

Voltage

150 V range: 8.3 to 165.0 V
300 V range: 16.5 to 330.0 V
600 V range: 33.0 to 660.0 V

Power
frequency

40 to 250 Hz

Sine-wave or single-order harmonic content must
be 20% or less.

Input ratings
(Measurement
accuracy
guarantee
range)

Current

5 A range: 1.0. to 5.0 A
25 A range: 5.0 to 25.0 A
100 A range: 25.0 to 100.0 A
200 A range: 100.0 to 200.0 A
400 A range: 200.0 to 400.0 A

Defined by R.M.S. values using a sine wave.
The power frequency must be within the acceptable
range.

Voltage

150 V range: 75.0 to 150.0 V
300 V range: 150.0 to 300.0 V
600 V range: 300.0 to 600.0 V

Power
frequency

45 to 245 Hz

Since wave

Measurement
accuracy
(Ambient
temperature:
10 to 30°C)

Current

Absolute accuracy: 0.5%FS±1digit
Repeat accuracy: ±1%rdg±1digit

Not including accuracy variation of CTs
The power frequency must be within the rated range.

Voltage

Absolute accuracy: 0.5%FS±1digit
Repeat accuracy: ±1%rdg±1digit

The power frequency must be within the rated range.

Active/
reactive
power

Absolute accuracy: ±2%FS±1digit
Repeat accuracy: ±1%rdg±1digit

Power factor 1
The power frequency must be within the rated range.

Power
frequency

Absolute accuracy: 0.5%FS±1digit
Repeat accuracy: ±1%rdg±1digit

Sine wave