ASV101
4 ASV101_V1.0.0_PI_2018-01_EN.fm
Subject to technical changes
FRIGOLINK
1.6 Function
The ASV101 is used for controlling valves for regulating the output of reciprocating compressors and can be operated in
two operation modes (EXTERNAL and PWM). The operating mode is selected using a selector switch on the module (Po-
sition 0 = EXTERNAL mode / Position 1 = PWM mode). The parameters for the desired functions are configured on the
master module. Two outputs "Out1" and "Out2" are used for capacity regulation. Capacity regulation can only take place
when the two outputs have been enabled by a feedback signal from the compressor on the "Operation feedback" input (ter-
minal 1-2). If this feedback is not present, the two outputs and the valves are switched off. When enabled, outputs "Out1"
and "Out2" are actuated through the 0...10V control input (terminal 9-10). The required control signal is sent continuously
from the FRIGOLINK compound master module HVx through the 0...10V outputs of the compressor field modules
(FVB110B, FVB110-PAT, FVB120B, FVB120-PAT, FVB140B, FVB140-PAT).
PWM operating mode
In PWM mode (Pulse Width Modulation), the ASV101 converts the continuous 0…10V control signal from a field module
into a valve cycle value. In this way, each voltage value at the input corresponds to a certain pulse/pause ratio at the output.
The period duration of the pulse width modulation is 12s and cannot be changed.
The two outputs available on the ASV101 are push-pull outputs. In this way, 2 banks of compressors can be controlled at
the same time, each with 0-100% bank capacity and therefore with 0-100% compressor capacity. Push-pull operation pro-
duces an even mass flow since bank switching is distributed over time, thus avoiding - as far as possible - simultaneous
switching of the cylinder bridges. If more than 2 banks are to be controlled, they can be operated in parallel with the first
two banks. Total compressor capacity is then also controlled from 0 to 100%. Parallel connection only affects the mass flow
ratios, which may differ when examined periodically. Output is inverted (0%=both outputs ON).
Abb. 5: ASV101 - PWM operating mode: Power regulation
EXTERNAL operating mode
In this mode, the outputs can be controlled separately by voltage coding.
1.7 Technical data
0.0V 3.3V 6.6V 10.0V
Out1 ON OFF ON OFF
Out2 OFF OFF ON ON
Power supply 230V~, +10% / -20%, approx. 7VA
Enable input 230V~, +10% / -20%
Analogue control input 0...10V=
Control outputs for the solenoid
valves Electronic, 230V~, each 10...30VA
Maximum continuous load 0.315A, integrated semiconductor protection (no isolator)
Connection cross-section 2.5mm²
Dimensions (WxHxD) 53 x 90 x 58mm (DIN 43880)
Fastening Top-hat rail TH 35-15 or TH 35-7.5 (DIN EN 60715)
Ambient temperature Operation: 0...+55°C, storage: -25...+70°C
Weight About 200g
CE conformity - 2014/30/EU (EMC Directive)
- 2014/35/EU (Niederspannungsrichtlinie)
EAC conformity - TR CU 004/2011
- TR CU 020/2011
RoHS II
Valid from Version 1.0.0