Concept
MP-C-18A Screw Terminals
MP-C-18A has 18 I/O points and the controller is equipped with seven pluggable terminal blocks and one fixed terminal block.
Danger
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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 Nm (5 lbf.in)
The terminal blocks are used as follows:
One 3-position pluggable terminal block for the power input
Two 3-position pluggable terminal blocks for the four triac outputs
One 6-position pluggable terminal block for the three relay outputs
One 2-position fixed terminal block for the high power relay output
Two 6-position plus one 3-position pluggable terminal blocks for the 10 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 |
24 VAC/DC |
24 VAC, 50/60 Hz, 22 VA Positive lead (+) when operating the device from 24-30 VDC, 12 W |
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2 |
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Earth ground lead of 24 VAC transformer connects to terminals 2 or 3. Terminals 2 and 3 are internally connected. Negative (–) lead when operating the device from 24-30 VDC, 12 W |
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3 |
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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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Triac outputs |
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4 |
DO1 |
Triac output |
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5 |
COM1 |
Common connection for DO1 and DO2 The COM terminal can be connected to 24 VAC for high-side switching or to ground for low-side switching. |
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6 |
DO2 |
Triac output |
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7 |
DO3 |
Triac output |
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8 |
COM2 |
Common connection for DO3 and DO4 The COM terminal can be connected to 24 VAC for high-side switching or to ground for low-side switching. |
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9 |
DO4 |
Triac output |
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Relay outputs |
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10 |
DO5 |
Relay output, type Form A |
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11 |
DO5 |
Relay output, type Form A |
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12 |
DO6 |
Relay output, type Form A |
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13 |
DO6 |
Relay output, type Form A |
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14 |
DO7 |
Relay output, type Form A |
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15 |
DO7 |
Relay output, type Form A |
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High power relay outputs |
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16 |
DO8 |
High power relay output, type Form A |
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17 |
DO8 |
High power relay output, type Form A |
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Universal inputs/outputs |
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18 |
Ub1 |
Universal input/output, type Ub |
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19 |
RET |
Internally connected to all earth ground and RET terminals |
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20 |
Ub2 |
Universal input/output, type Ub |
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21 |
Ub3 |
Universal input/output, type Ub |
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22 |
RET |
Internally connected to all earth ground and RET terminals |
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23 |
Ub4 |
Universal input/output, type Ub |
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24 |
Ub5 |
Universal input/output, type Ub |
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25 |
RET |
Internally connected to all earth ground and RET terminals |
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26 |
Ub6 |
Universal input/output, type Ub |
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27 |
Ub7 |
Universal input/output, type Ub |
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28 |
RET |
Internally connected to all earth ground and RET terminals |
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29 |
Ub8 |
Universal input/output, type Ub |
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30 |
Ub9 |
Universal input/output, type Ub |
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31 |
RET |
Internally connected to all earth ground and RET terminals |
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32 |
Ub10 |
Universal input/output, type Ub |
MP-C Controllers
MP-C Screw Terminals
Wiring