Altitude Operating Conditions

The characteristics in the table below apply to the modules BMX DDO 1612 and BMX DDO 1612H for use at altitude up to 2000 m (6560 ft). When the modules operate above 2000 m (6560 ft), apply additional derating.

For detailed information, refer to chapter Operating and Storage Conditions.

General Characteristics

This table presents the general characteristics for the BMX DDO 1612 and BMX DDO 1612H modules:

Module type

24 VDC negative logic static outputs

Operating temperature

BMX DDO 1612

0...60 ºC (32...140 ºF)

BMX DDO 1612H

-25...70 ºC (-13...158 ºF)

Temperature derating

Apply the temperature derating curve

Nominal values

Voltage

24 VDC

Current

0.5 A

Threshold values

Voltage (including ripple)

19...30 V (34 V possible for 1 hour/day)

Current/channel

0.625 A

Current/module

10 A

Power of tungsten filament lamp

Maximum

6 W

Leakage current

At 0

< 0.5 mA

Residual voltage

At 1

< 1.2 V

Load impedance

minimum

48 Ω

Response time(1)

1.2 ms

Reliability

MTBF for continuous operation in hours at ambient temperature 30 °C (86 °F)

403 804

Frequency of switching to inductive load

0.5 / LI2 Hz

Paralleling of outputs

Yes (maximum of 3)

Compatibility with DC inputs

Yes (source and no type inputs)

Built-in protection(2)

against over voltage

Yes, by Transil diode

against reverse polarity

Yes, by reverse-mounted diode

against short-circuits and overloads

Yes, by current limiter and electric circuit-breaker 1.5 In < Id < 2 In

Fuse type

Internal

None

External

1 fast blow fuse of 6.3 A

Pre-actuator voltage: monitoring threshold

OK

> 18 V

Error

< 14 V

Pre-actuator voltage: monitoring response time

on appearance

8 ms < T < 30 ms

on disappearance

1 ms < T < 3 ms

Power consumption 3.3 V

typical

79 mA

maximum

111 mA

24 V pre-actuator consumption

(Excluding load current)

typical

23 mA

maximum

32 mA

Power dissipation

2.26 W max.

Dielectric strength

Output / ground or output / internal logic

1500 V rms, 50 / 60 Hz for 1 min.

Resistance of insulation

>10 MΩ (below 500 VDC)

(1) All outputs are equipped with fast demagnetization circuits for electromagnets. Electromagnet discharge time < L/R.

(2) Provide a fuse to the +24 V pre-actuator supply.

NOTE: For the BMX DDO 1612H, the maximum pre-actuator power supply must not exceed 26.4 V and the output current value must not exceed 0.55 A at 70 °C (158 °F).