schroff 60714-050, User Manual

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VARISTAR LHX 20 Interfaces
Cooling module 60714-050
www.schroff.biz 19 R2.1, May 10, 2012
6 Interfaces
Situated beside the control and display unit are a D-sub 25 socket, a D-sub 9
connector and a RJ45 socket. Additional interfaces are provided on the control
board and can only be accessed by removing the front cover of the cooling
module. (See control board overview in the Appendix.)
Figure 5: Interfaces
6.1 Pinout of D-sub 25 socket
Name Pin Function
E11 pin 10 / pin 22 Digital input:when bridged > remote control on/off
E12 pin 11 / pin 24 Digital input: when bridged > request max. cooling output
E13 pin 13 / pin 25 Digital input: reserve
K4 pin 1 / pin 14 Relay output 1 A / 60 V, closes when power absent
K5 pin 2 / pin 15 Relay output 1 A / 60 V, closes when limit temperature value on sensors F1/F2
(outlet) is attained. Alarm threshold is set in PA0 (P10/P11).
K6 pin 3 / pin 16 Relay output 1 A / 60 V, closes when limit temperature value on sensor F5 (inlet)
is reached. Alarm threshold is set in PA0 (P14/P15).
K7 pin 4 / pin 17 Relay output 1 A / 60 V, closes when limit value of fan speed is reached.
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Alarm threshold is set in PA0 (P21).
K8 pin 5 / pin 18 Relay output 1 A / 60 V, closes if common fault occurs