3. Commissioning
Page 40
MF0150A4A.doc Manual for ION-M7P/17EHP/19P
Alarm Outputs and +28V Output
figure 3-21 Alarm outputs (optocoupler)
figure 3-22 Flange connector, 7 poles
The alarm outputs (pins 1 to 4: open collector output 5 V / 1 mA; see
figure 3-22
) are
normally low. In case of an alarm they are high active (5 V). They can be used to
monitor alarms with an external alarm indicator.
The +28 V pin (pin 6&7) is specified to 28 VDC / 1
A
and is protected by a
thermoswitch. In case of exceeding this current between pin 7 and GND, the
thermoswitch turns into a high-resistive status. In this case no fuse needs to be
replaced. Just wait a few minutes until the thermoswitch reaches the normal
operating temperature again.
Note:
The manufacturer / supplier of this system assumes no liability for
damage caused by equipment connected to external outputs or by
effects from such equipment.
