5vacon • 70 InstallationTel. +358 (0) 201 2121 • Fax +358 (0)201 212 2055.5 Galvanic isolation barriersThe control connections are isolated from the mains potential and the GND terminals arepermanently connected to ground. See Figure 51.The digital inputs are galvanically isolated from the I/O ground. The relay outputs are additionallydouble-isolated from each other at 300 VAC (EN-50178). See Figure 51.Figure 51. Galvanic isolation barriersL1 L2 L3U V WRO1/1RO1/2RO1/3RO2/3RO2/2RO2/110VrefGNDGND+24VAI1AI2+AI2 -DIN1...DIN3CMADIN4...DIN6CMBAO1+AO2 -DO1nk6_1 5TI1+TI1-Contro l I/OgroundDigital inputgroup ADigital inputgroup BAnalogueoutputDigitaloutputControlboardControlpanelGate driversPowerboard11209.emf
