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Number (n) of the digital outputs for fans (L) = 3: Outputs for fan 1 … 3
Digital output for power supply bridging (n+1 = 4): Output fan 4
5. Relay output for the base load rotation of the speed-controlled compressor for compressor
combined control
As the speed-controlled compressor in the combined control type of control shows the longest operating time,
base load rotation of the speed-controlled compressor is performed as well as the base load rotation of the
fixed-speed compressors. Compressor 1 and compressor 2 are alternately switched to the frequency converter
for this using the configurable cycle time for the base load rotation.
The base load rotation of the speed controlled compressor is triggered via a relay output. Depending on the
system configuration, the following relay output is used:
VS 3015 C basic module: relay output 4 (terminals 43/44) with first SIOX extension module relay output 8
(terminals 43/44) with first SIOX extension module relay output 12 (terminals 43/44)
If the contact is closed, it must be ensured by an external circuit that compressor 2 is switched to the frequency
converter and compressor 1 is in mains power operation; if the contact is open, compressor 1 is assigned to the
frequency converter and compressor 2 to the mains power supply.
6. Analogue input for retrieval of the analogue control signal of the FC / speed controller
Modern FCs / speed controllers often provide the possibility to output the actual speed or the motor current as
an analogue value. This analogue output must then be configured as a current output (4-20 mA) for this.
4 mA at the analogue output here means minimum speed / current; 20 mA means maximum speed / current.
The analogue output signal of the FC / speed controller can then be applied for the logging on the pack
controller at the analogue input 2 (terminals 39/40):
6.6 Commissioning fan control via Modbus
1. Requirements
a. VS 3010 C with the part number:
???
b. Software version V5.53 or higher.
2. Preparation
a. Check jumper J1 of the pack controller and swap to RS485 if necessary.
Содержание VS 3015 C
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