Connecting
6.2 Connections
SENTRON PAC4200
84 System Manual, 09/2009, A5E02316180B-02
Grounding
Conductive panels and doors on control cabinets must be grounded. The doors of the control
cabinet must be connected to the control cabinet using a grounding cable.
Reference potential
DIC DI0DI1 DOC DO 0DO1
(13) Reference potential terminal
Figure 6-6 Terminal block: digital input and output, reference potential
The connection "reference potential" discharges interference affecting the digital input
and output and the RJ45 connector.
Connect the reference potential to the equipotential bonding strip in the control cabinet.
Circuit breaker
A suitable circuit breaker must be connected upstream of SENTRON PAC4200 in order to
permit disconnection of the device from the power supply.
● The circuit breaker must be mounted close to the device and be easily accessible to the
user.
● The circuit breaker must be marked as the circuit breaker for the device.
Phase-synchronous connection
The phases must be connected phase-synchronously. The specified terminal assignment
cannot be changed by changing the parameters.
Supply voltage fuse protection
CAUTION
Non-fused supply voltage may lead to device and equipment damage
Always protect the SENTRON PAC4200 with wide-range power supply with an IEC
approved or UL listed CLASS CC 0.6 A fuse.
If a fusible link is used, a suitable IEC approved or UL listed fuse holder has to be used.
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