8
Battery Switch Load Switch
Step
Fuse 15A Fuse 10A
Fuse 10A
Load of Class D
Load of Class C
Load of Class B
Load of Pump
Fuse 10A
Fuse 10A
Fuse 10A
Fuse 10A
Fuse 10A
Fuse 10A
Fuse 10A
Fuse 10A
Fuse 10A
Fuse 15A
Fuse 15A
2.8 Battery Low Voltage Protection (BLVP or commonly known as an LVD)
The PM200 transformer unit has a built-in low voltage protection relay. It will disconnect the load once the battery voltage drops below
the threshold voltage. The default setting is 10.5VDC.
NOTE: Class C and Class D loads remain active.
2.9 Manual Battery Switch
The PM200 unit offers a convenient way to switch off the output of the on-board service battery. It protects the service battery from
being drained by the electronics on board, completely isolating the battery. PM200 unit also supports a remote manual battery switch.
Before using the remote switch, ensure the ‘switch selector’ is set to ‘Remote’. The switch is only effective when the system has no
other energy resource for the load except the battery.
2.10 Silent Mode
In Silent Mode, the backlight of the LED Display and the fan will be turned off or decreased in speed.
Table 4 Categorised outputs denition
CATEGORY QTY DESCRIPTION POSSIBLE LOAD SUITABLE
Class A1 1 Relay controlled output with fuse, protected by main master switch relay Water pump
Class B 10 Fused outputs, protected by master switch relay Ventilation fan etc
Class C 2 Live load Fridge, security alarm etc
Class D 1 Permanent on load Auto step
2.5 PWM Solar Charge Controller
PM200 has a built-in PWM charger for the service battery.
• Max input voltage 30VDC
• Max charging current 30A
• Max supply current 30A
2.6 Voltage Charging Relay (VCR or commonly known as a VSR)
PM200 Master Power Unit has a built-in voltage charging relay (VCR), which offers a convenient source to charge the service battery by
alternator whilst the engine is running.
LEAD ACID BATTERY – When the start battery reaches 13.4VDC with threshold time delay, the VCR will charge the service battery from
the alternator. VCR will continue charging until the starter battery voltage drops under 12.8VDC.
LiFePO
4
LITHIUM BATTERY – When the starter battery reaches 14.0VDC with threshold time delay, the VCR will charge the service battery
from the alternator. The VCR will continue charging until the starter battery voltage drops below 13.5VDC with less than 2A charge to the
service battery with threshold time delay.
NOTE: The PM200, when charging from the starter battery, does not provide 5 stage charging.
It simply takes whatever power and charging is available from the alternator.
NOTE: If your vehicle is tted with a smart charging system (Variable Voltage or Temperature Compensating),
the VCR charge system may not function correctly and the PMDCS range of DC-DC chargers are recommended.
Please consult your local dealer or installer for further information.
2.7 Categorised Outputs
The 14 outputs are categorised into groups and controls as per below:
Figure 7 Categorised output
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