Konzept
RP-C-12C Screw Terminals
The RP-C-12C model has 12 I/O points and the controller is equipped with 24 fixed screw terminals.
Gefahr
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HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH Disconnect the power supply and other high voltage equipment before wiring. Failure to follow these instructions will result in death or serious injury. |
Recommended screw tightening torque: 0.56 to 0.79 Nm (5 to 7 lbf.in)
The 24 screw terminals are used as follows:
Three screw terminals for the power input
Two screw terminals for the return (RET) terminals 4 and 5
Six screw terminals for the four solid-state relay (SSR) outputs
Four screw terminals for the three relay outputs
Three screw terminals for the high power relay output
Six screw terminals for the four universal inputs/outputs of type Ub
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Terminal number |
Designation |
Usage |
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Power input |
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1 |
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24 VAC, 50/60 Hz, 23 VA Positive lead (+) when operating the device from 24-30 VDC, 14 W |
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2 |
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Earth ground lead of 24 VAC transformer connects to terminal 2. Terminals 2 and 3 are internally connected. Negative (–) lead when operating the device from 24-30 VDC, 14 W |
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3 |
RET 
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Terminal 3 is provided for convenience to connect to protective earth ground (optional). Terminals 2 and 3 are internally connected. |
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Return terminals |
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4 |
RET |
Internally connected to all earth ground and RET terminals |
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5 |
RET |
Internally connected to all earth ground and RET terminals |
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Solid-state relay (SSR) outputs |
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6 |
DO1 |
SSR output |
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7 |
COM1 |
Common connection for DO1 and DO2 The COM terminal can be connected to 0 to 24 VAC or -30 VDC to +30 VDC. |
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8 |
DO2 |
SSR output |
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9 |
DO3 |
SSR output |
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10 |
COM2 |
Common connection for DO3 and DO4 The COM terminal can be connected to 0 to 24 VAC or -30 VDC to +30 VDC. |
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11 |
DO4 |
SSR output |
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Relay outputs |
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12 |
COM3 |
Common connection for DO1, DO2, and DO3 |
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13 |
DO1 |
Relay output, type Form A |
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14 |
DO2 |
Relay output, type Form A |
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15 |
DO3 |
Relay output, type Form A |
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High power relay outputs |
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16 |
NC |
Normally Closed terminal. High power relay output, type Form C. |
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17 |
DO4 |
Common terminal. High power relay output, type Form C. |
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18 |
NO |
Normally Open terminal. High power relay output, type Form C. |
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Universal inputs/outputs |
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19 |
Ub1 |
Universal input/output, type Ub |
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20 |
RET |
Internally connected to all earth ground and RET terminals |
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21 |
Ub2 |
Universal input/output, type Ub |
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22 |
Ub3 |
Universal input/output, type Ub |
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23 |
RET |
Internally connected to all earth ground and RET terminals |
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24 |
Ub4 |
Universal input/output, type Ub |
RP-Cs
RP-C Screw Terminals
Wiring