Nexen 1625 Input Unit 936001 - Manual (Page 6)

21070-D-0707
NOTE: Refer to Figure 4
1. If the brake is to be set when the solenoid is de-ener-
gized, connect the port marked 2 to the brake and the
port marked to the clutch.
2. Connect the air supply line to the inlet port (marked 1).
FIGURE
For a faster response, Nexen recommends a quick exhaust valve and short air lines between the Control Valves and the FMCB.
Align the air inlet ports to a down position to allow condensation to drain out of the air chambers. The FMCB has 1/8 - 27 NPT
ports.
AIR CONNECTIONS
NOTE: Refer to Figure 5
1. If the brake is to be set and the clutch is to be OFF
when the solenoid is de-energized, connect the port
marked
to the brake and the port marked 2 to the
clutch.
2. Connect the brake air supply line to the port marked
and the clutch air supply line to the port marked 3.
NOTE: Refer to Figure 6
1. Install a 3-Way N.O. Control into the brake inlet port and
a 3-Way N.C. Control into the clutch inlet port.
2. Connect an air supply line to the inlet port (marked IN)
on top of the 3-Way N.O. Control and an air supply line
to the inlet port (marked
IN) on the side of the 3-Way
N.C. Control.
FIGURE
5-WAY CONTROL VALVE
4-WAY CONTROL VALVE
3-WAY CONTROL VALVES
3-WAy N.C.
CONTROL
AIR TO
CLUTCH
3-WAy N.O.
CONTROL
AIR TO
BRAkE
FIGURE
When a 3-Way N.O. Control is de-energized, air flows
directly to the brake. When a 3-Way N.O. Control is en-
ergized, air exhausts from the brake.
When a 3-Way N.C. Control is de-energized, air exhausts
from the clutch. When a 3-Way Control is energized, air
flows to the clutch.
NOTE