AMCI SMD17E2 - 1.5 Power Wiring

INSTALLING THE SMD17E2 SMD17E2 User Manual
ADVANCED MICRO CONTROLS INC.
90
1.5 Power Wiring
The SMD17E2 accepts 24 to 48Vdc as its input power. AMCI strongly suggests using 18 AWG wire for the
power connections to minimize power loss in the cable. The CNPL-2M and the CNPL-5M cables are made
with 18 gauge wire, and the MS-31 connector will accept up to 18 gauge wire.
Do not apply 120 Vac to any pins of an SMD17E2. If this occurs, the unit will be dam-
aged and you will void the unit’s warranty.
The SMD17E2 does not have a circuit to limit inrush current when power is applied to
the unit. If the power supply voltage is applied through the switching of contacts, dam-
age to the contacts or contact welding may occur.
 Use a power supply that limits the peak output current to a value below the con-
tact switching limit.
 Switch the power input to the power supply instead of the power supply’s output.
Figure T1.4 below shows how to wire power to the SMD17E2 units. Note that Pin 5, DCPower
AUX
, is only
used when you introduce a circuit for removing power from the motor. Colors in parentheses are the appropri
-
ate wire color of the CNPL-5M cable.
Figure T1.4 M12 Power Wiring
+24Vdc to +48Vdc
Power Supply
+24Vdc to +48Vdc
Power Supply
Power
Control
Circuit
POWER & INPUTS
POWER & INPUTS
Pin 1: DCPower (BRN)
MAIN
Pin 1:
DCPower (BRN)
MAIN
Pin 5: DCPower AUX
Pin (GRY)5: DCPower AUX
Pin
2: Input 1
Pin
2: Input 1
Pin
3: DC Common (BLU)
Pin (BLU) 3: DC Common
Pin 4: Input 2
Pin 4: Input 2