Power Terminal Block Description
Input and output power connections are performed through a
GRD GRD L1 | L2 | L3 | +DC BRK 1 | T1 | T2 | T3 | ||||||||
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| R | S | T | U | V | W | |
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| To Motor | |||||
To |
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Motor |
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| Protected AC Input |
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| U082ME3A | |
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| U082ME3A |
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| Figure 39 |
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Power Block Terminal (TB1) |
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Terminals |
| Description | ||||||||||
GRD |
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| Earth Ground |
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R, S, T (L1, L2, L3) |
| AC Input Line Terminals | ||||||||||
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+DC, BRK (or |
| Dynamic Brake Option – Refer | ||||||||||
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| to instructions with option | |||||
U, V, W (T1, T2, T3) |
| Motor Connection |
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| Table 37 |
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Torque Specifications |
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Terminal |
| Screw |
| Max/Min Wire |
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| Max/Min | |||||
| Size |
| Size mm2 |
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| Torque | ||||||
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| (AWG) |
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TB1 (0.37 to |
| M4 |
| 3.5/0.75 |
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| 0.90 | ||||
0.75 kW |
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| (12/18) |
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| (8) | |||
1/2 to 1 HP) |
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TB1 (All |
| M4 |
| 4/0.75 |
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| 1.81 | ||||
except above) |
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| (10/18) |
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| (16) | |||
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TB2 (All) |
| M3.5 |
| 1.5/0.20 |
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| 0.90 | ||||
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| (14/24) |
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| (8) | |
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Table 38
Control Terminal Blocks Description and Control Logic
Control terminal functions are unique to each Allen- Bradley Drive. Each drive’s control terminal is addressed independently.
Control Terminal Block (TB2) Function
WARNING
To reduce risk of electric shock, severe injury or death, allow machine power to remain off for three minutes minimum prior to working in and around AC drive. Proceed with caution.
W662
CAUTION
The controller is supplied with an internal 5V supply. Dry contacts or open collectors are required for discrete control inputs. If an external voltage is applied, component failure could occur.
W670
Input Mode Parameter
The control terminal functions are determined in part by the Input Mode parameter #21. Changing this parameter affects the function of some terminals. All machines equipped with 1305 drives use Input Mode “UNIMAC”.
NOTE: If the Input Mode is changed, power must be cycled to the drive for the change to take effect.
Speed Selection
Motor speeds are controlled by solid state or mechanical switch closure inputs to SW1, SW2 and SW3 in conjunction with STR and STF (direction) inputs. Refer to Figure 40 and Table 39.
Table 44 designates the preset speed selection based on the inputs to the control terminals. A disconnected control terminal will seek the high control voltage condition (approx. 5 Volts DC). To activate a control input (i.e., SW1, SW2, etc.), the terminal is connected to a common terminal
F232120 | © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT | 65 |