ECKELMANN VS 300, Operating Instructions Manual

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Function of VS 300
16 Doku-Version 2.05 - Firmware 2.10 - 15. September 2017
With a mixed configuration of single-stage and capacity-controlled compressors, the capacity-con­
trolled compressors must be connected at the beginning of the relay field assigned to the respective
control loop, followed by the single-stage compressors. Capacity-controlled stages (fans/compres­
sors) are not supported with continuous control (speed or combined control). The settings for these
operating modes are therefore:
L
x
=1 and B
x
=0 .
With speed control, base load stages can be assigned to Control Loop 1 or 2 depending on whether
a bypass function to bridge the frequency changer is desired or not (see section 4.5.5 Control Algo­
rithm with Speed Control). A minimum of two base load stages must be assigned to the control Loop
with combined control.
The number of relay/control stages required for a control loop is calculated as follows:
No . of relays CL
x
( G
x
B
x
) B
x
L
x
where x = either CL1 or CL2
The relay outputs assigned to Control Loop 1 always start at relay/control stage S1.
The relay outputs assigned to Control Loop 2 start at relay/control stage Sn where
n =
(No. of relays CL1 + 1)
See section 5 Pin and Terminal Assignments for details of pin assignments.
When setting parameters for system configuration, make sure not to exceed the number of relay/
control stages available:
No. of relays CL1 + No. of relays CL2 + number internal alarm relais
<= Number of VS 300 relay/control stages (4/8/12 depending on expansion stage)
4.1.2 Dispatching of the internal alarm outputs
To the control of alarm signalling equipment (telephone selecting equipment etc..) can up to two relays for mes­
sages with priority 1 or 2 be assigned (chapter 7 Parameter list and menu structure). These relays always are at
the end of each stage of development.
Extension
Number of relay/control sta­
ges
Extension
Number internal alarm relais
Relais number,
Intended for the alarm signalling equipment
(see chapter 5 Pin and Terminal Assignments of VS 300)
4 1 S4: Priority 1 and priority 2
2 S3: Priority 1
S4: Priority 2
8 1 S8: Priority 1 and priority 2
2 S7: Priority 1
S8: Priority 2
12 1 S12: Priority 1 and priority 2
2 S11: Priority 1
S12: Priority 2
When setting parameters for system configuration, make sure not to exceed the number of relay/
control stages available:
No. of relays CL1 + No. of relays CL2 + number internal alarm relais
<= Number of VS 300 relay/control stages (4/8/12 depending on expansion stage)