11
upto 20 days to the RTC.
2.14 POWER SUPPLY
The Power Supply Card used in this module has several new features. The features are as follows:
Under Voltage Protection
Over Voltage Protection
Short Circuit Protection
Uses Single Transformer with selectable voltage & frequency range
Voltage Range : 360VAC to 480VAC
Frequency Range: 47.5Hz to 63Hz.
2.15 SURGE PROTECTION AND LIGHTENING ARRESTER
This module has protection again voltage surges and lightening by using a protection card for 4-
20ma/ MODBUS operation. This card is called Surge protection and lightning arrester (SP & LA)
card. It is placed between command signal line and Interface (IF) card to eliminate the voltage
fluctuations. This card is given as default when Modbus or regulating duty is given.
NOTE: The features supported by your actuator is with respect to the wiring diagram (WDP)
provided with it. Please remember that it might not have all the features described in this
document.
2.16 INBUILT POWER BACKUP DURING POWER OFF
This module has an extra feature that it will provide a power backup for about 30 minutes when the
3-phase supply goes off. The display will be on and the Modbus communication feature will continue
to work during that time. Also, the handwheel operation is reflected on the display.
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