3.1.8 OPC24VPS 24V DC External Supply Module
External 24 V DC Supply
An external 24 V DC supply can be installed for low-voltage supply to the control card and any option card installed. This enables full operation of the keypad
(including the parameter setting) and networks without mains supplied to the power section.
External 24 V DC supply specification:
Input voltage range 24 V DC ±15 % (max. 37 V in 10 s)
Max. input current 2.2 A
Average input current for the frequency converter 0.9 A
Max cable length 75 m
Input capacitance load < 10 uF
Power-up delay < 0.6 s
The inputs are protected.
Terminal numbers:
Terminal 35: - external 24 V DC supply.
Terminal 36: + external 24 V DC supply.
Follow these steps:
1. Remove the keypad or Blind Cover
2. Remove the Terminal Cover
3. Remove the Cable De-coupling Plate and the plastic cover underneath
4. Insert the 24 V DC Backup External Supply Option in the Option Slot
5. Mount the Cable De-coupling Plate
6. Attach the Terminal Cover and the keypad or Blind Cover.
When OPC24VPS, 24 V backup option is supplying the control circuit, the internal 24 V supply is automatically disconnected.
Illustration 3.2: Connection to 24 V backup supplier (12-13).
Illustration 3.3: Connection to 24 V backup supplier (15-32).
AF-600 FP Design Guide
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