User manual

Publication 1760-UM001A-EN-P

2-8 Installation

Connecting AC Inputs

Connect inputs to push-buttons, switches, relays, or contacts.

Wire Lengths

Severe electromagnetic interference to wires can cause inputs to signal 1 without

the proper signal being applied. Observe the following maximum cable lengths:

• I1 to I6, I9 to I12: 40m (130 ft) without additional circuits

• I7 and I8: 100m (330 ft) without additional circuits

ATTENTION

For Pico controllers with ac inputs, connect the inputs to the

same phase as the power feed L1, in accordance with VDE, IEC,

UL and CSA safety regulations. Otherwise, Pico may not detect

the switching level or, it may be damaged by excess voltage.

Input Specification

Input Signal Voltage Range OFF signal: 0 to 40V ac

ON signal: 79V to 264V ac

Input Current I1 to I6, I9 to I12: 0.25 mA at 120V ac, 0.5 mA at 240V ac

I7 and I8: 4 mA at 120V ac, 6 mA at 240V ac,

ATTENTION

Do not use reed relay contacts on I7 or I8. These may burn or

melt due to the high current of I7 and I8.

L1 L2 I2 I3 I4 I5 I6 I7 I8I1

120/240V ac

50/60Hz

Inputs x 120/240V ac