RHEONIK RHE21, Installation & Start?Up Manual

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RHE21 Installation & Startup Guide – Doc. No. 8.2.1.04 – Ver. 1.31 8 / 58
capacitor. Alternatively, a separate cable can be run for potential equalization between
the RHM case and the RHE and the shield left both unconnected and isolated at the RHE
or terminated to the PE connection via a 1nF capacitor.
Upon power up, if the RHE indicates an error and the temperature measurement on the bottom
right of the display shows “ -.--°C/°F ” please check the temperature measurement configuration
setting in the RHE (section 4.5).
The correct temperature measurement configuration setting for an RHM with connection type
TM is “7”.
3.2.1.3 RHM Electrical Connection Type JO (12 Terminals)
Table 4: RHE21 Wiring Plan for RHM Connection Types JO
RHM Terminal Cable RHE21 Terminal
1
No. Name Wire Color Function No. Name
1 DRIVE + Brown Drive Coil high 1 DrvH
2 DRIVE - Blue Drive Coil low 2 DrvL
3 PT1 Pipe Supply Red Temperature Sensor Pipe 3 PtP
4 PT1 Pipe Sense Pink Temperature Sensors GND 4 PtG
5 PT 1/2 Common - - - -
6 Pick-Up left+ Yellow Pick Up Coil A high 6 PkAH
7 Pick-Up left - Green Pick Up Coil A low 7 PkAL
8 Pick-Up right- Grey Pick Up Coil B low 8 PkBL
9 Pick-Up right+ White Pick Up Coil B high 9 PkBH
10
2
GND (yel/grn) Shield 10 PE
11 PT2 Tor. Supply Orange Temperature Sensor Torsion 5 PtT
12 PT2 Tor. Sense - - - -
1
Connection only necessary for RHE21 construction types E5 and H3 without integrated sensor cable.
2
The shield of the cable is connected through terminal 10 to the housing of the RHM. If there is a risk of a significant
potential difference between the housing of the RHM and the PE terminal of the RHE, the shield should be connected
to the RHE PE connection via a 1nF capacitor. Alternatively, a separate cable can be run for potential equalization
between the RHM case and the RHE and the shield left both unconnected and isolated at the RHE or terminated to
the PE connection via a 1nF capacitor.