19
CHARGEMASTER VCM
5201247 Rev. C
Monitoring the Limit Alarm Remotely
1. The Limit Alarm indicator can be monitored externally by an LED or PLC
input. An opto-isolated transistor provides the signal; maximum load must not
exceed 50 VDC/10 mA.
2. Connect an external monitoring circuit to D-Sub connector pins 9 & 22. Refer
to electrical schematic (p.14).
Figure 12. Example Limit Alarm Light Tree Schematic
7. MAINTENANCE
NOTE
– Only qualified service personnel are to perform maintenance
tasks.
CAUTION – Electrical Shock Hazard
Disconnect power source before performing maintenance tasks.
CAUTION – Electrical Shock Hazard
When opening the equipment, you may come into contact with parts
connected to dangerous voltages.
Maintenance Tasks
1. Keep the power supply dry and free of dust, dirt and chemicals.
2. Regularly check power supply grounding.
3. Regularly check the high-voltage connectors and cables for mechanical or
electrical damage.
4. The power supply does not contain internal parts that require periodic
maintenance.
