Power Output Module (POM)
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设计
Module (encapsulated) in a metal enclosure.
There are 6 versions:
POM4320 busbar mounting (IEC): a current of up to 16 A can be used per output
POM4320 busbar mounting (UL): a current of up to 15 A can be used per output
POM4320 rear panel mounting (IEC): a current of up to 16 A can be used per output
POM4320 rear panel mounting (UL): a current of up to 15 A can be used per output
POM4320 Highend busbar mounting: a current of up to 60 A can be used per output
POM4320 Highend rear panel mounting: a current of up to 60 A can be used per output
Heat dissipation by fan fitted to top of module.
Internal serial interface.
Three diagnostics LEDs for displaying module faults.
POM4320: 9 diagnostics LEDs for displaying output errors.
POM4320 Highend: 6 diagnostics LEDs for displaying output errors.
功能
Protector elements
Power triacs:
Protection of triacs and opto-triacs against overvoltages by Transil diodes
Transfer of the diagnostics information to the higher-level control system
Control modes
Half-wave control:
This is the control method used in normal operation. At every zero crossover, the output is controlled depending on the parameterized setpoint value. The control variable is set to values between 0 and .Soft start:
Phase control is executed for a limited time in order to achieve a gradual warming of the emitters. Switches to half-wave control when the time has expired. The control variable is set to values between 0 and .Phase control:
Phase control is executed permanently in order to achieve even heat dissipation and avoid disruptive emitter flickering with low setpoints. Phase control can sometimes cause EMC interference on the power supply lines which then has to be filtered on the system side.
POM4320 output rating:
9 power outputs of 400 V/480 V each (3 outputs per phase)
Switching capacity per output:
POM4320 IEC busbar mounting and rear panel mounting: max. 6 400 W at 400 V or 7 680 W at 480 V
POM4320 UL busbar mounting and rear panel mounting: max. 6 000 W at 400 V or 7 200 W at 480 V
Switching capacity per POM:
POM4320 IEC busbar mounting and rear panel mounting: max. 57 600 W at 400 V or 69 120 W at 480 V
POM4320 UL busbar mounting and rear panel mounting: max. 54 000 W at 400 V or 64 800 W at 480 V
Notice: Short-wave halogen or infrared emitters, so-called flash emitters, often have a high switch-on current due to their relatively low cold resistance. This switch-on current can be a multiple of the rated current especially during the initial half-waves. This can lead to the fuse being triggered. There is a switching power limit of 4 000 W when using flash emitters.
POM4320 Highend output rating:
6 power outputs of 230 V/277 V and 400 V/480 V each (2 outputs per phase)
POM4320 Highend busbar mounting and rear panel mounting:
- max. 7360 W at 230 V or 8864 W at 277 V
- max. 12 800 W at 400 V or 15 360 W at 480 VSwitching capacity per POM:
- max. 44 160 W 230 V or 53 184 W at 277 V
- max. 76 800 W at 400 V or 92 160 W at 480 V3 power outputs with 2 outputs in parallel connection (each 1 outlet per phase)
POM4320 Highend busbar mounting and rear panel mounting:
- max. 13 800 W at 230 V or 16 620 W at 277 V
- max. 24 000 W at 400 V or 28 800 W at 480 VSwitching capacity per POM:
- max. 44 160 W 230 V or 53 184 W at 277 V
- max. 76 800 W at 400 V or 92 100 W at 480 VNotice: Short-wave halogen or infrared emitters, so-called flash emitters, often have a high switch-on current due to their relatively low cold resistance. This switch-on current can be a multiple of the rated current especially during the initial half-waves. This can lead to the fuse being triggered. There is a limit to a switching capacity of 6000 W when using flash emitters at 400 V.
Ventilation
A fan for heat dissipation is mounted on the top. The fan is replaceable.
Temperature monitoring
There is an NTC thermistor in the device for monitoring the internal temperature. This temperature-dependent resistor switches off the module power outputs when a certain internal temperature is reached.
Fuses
POM4320 IEC busbar mounting and rear panel mounting: Two 16 A fuses are available for each power output in a fuse module that can be accessed from the front to protect the power triacs.
POM4320 UL busbar mounting and rear panel mounting: Two 15 A fuses are available for each power output in a fuse module that can be accessed from the front to protect the power triacs.
POM4320 Highend busbar mounting and rear panel mounting: One 32 A fuse is available for each power output in a fuse module that can be accessed from the front to protect the power triacs. Depending on the interconnection of the individual heating elements, the return line of the heating element can optionally be plugged into the available fuse holders of the fuse module.
Diagnostics options
Diagnostics functions are provided to detect the following faults as standard:
Implicit diagnostics means that the heating power is not influenced by the diagnostics themselves
Outgoing fuse is defective / triac at high resistance (exception: setpoint value 0%)
Incoming line fuse is defective
Triac has failed (exception: setpoint value )
Connecting cable defective (short-circuit and interruption) or load is defective (short-circuit and interruption)
Monitoring of supply voltage
Additionally for POM4320 Highend:
Connecting cable defective (short-circuit and interruption) or load is defective (short-circuit and interruption) with emitters connected in parallel and residual current too high.
Line voltage compensation
Internal compensation is carried out to compensate line voltage fluctuations
The function runs on the HCS master; it can be switched on and off by the user
The measured voltage values from each POM are available to the HCS master