Specifications

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PWM Pulse-Width-Modulated Input Signal
ANA Current/Voltage Input Signal
L1 Level 1 UMX (Dual UMX Mode)
L2 Level 2 UMX (Dual UMX Mode)
HSL Hold Outputs on Signal Loss (Current/Voltage)
CSL Clear Outputs on Signal Loss (Current/Voltage) DIP Switches
SVT Short Signal Validation Time (Current/Voltage) 0 Off
LVT Long Signal Validation Time (Current/Voltage) 1 On
L1, L2 - UMX Levels - Dual UMX Mode Only
In the Dual UMX mode, two UMXs respond in sequence to a single input signal. Using the DIP switch settings shown in Table 3,
assign the first UMX to Level 1 (L1) and the second UMX to Level 2 (L2). Dual UMX control is available in most current/voltage
and PWM modes. PWM time base doubles in Dual UMX mode.
HSL, CSL - Signal Loss Hold - Current/Voltage Input Mode Only
When using a current/voltage input, the UMX can be programmed to either hold all relays in their current state (HSL) or turn all
relays off (CSL) upon a loss of the input signal. Use DIP switch settings shown in Table 2 or Table 3 to program this feature.
SVT, LVT - Signal Validation Time - Current/Voltage Input Mode Only
When varying a current/voltage input signal to the UMX it is necessary for the input to remain at the desired value for a set length
of time. This prevents other relays on the UMX from energizing while the input signal is changing values. This set length of time, or
validation time, can be selected for either one (1) second (SVT) or three (3) seconds (LVT). Use the DIP switch settings in Table 2
or 3 to select the validation time.
Single and Dual UMX Control
The UMX can be operated in both a single and dual operating mode. In the single mode, one UMX is controlled from a single
current/voltage or PWM signal. In the dual mode, two UMXs are controlled in sequence, providing up to 16 relay outputs from
a single current/voltage or PWM input. This dual UMX control is not available with all control sequences. Refer to the control
sequences in Tables 2 and 3 for availability. If single UMX control is used, refer to Table 2 for DIP switch settings. For dual UMX
control, refer to Table 3.
Pulse Width Modulation (PWM)
To control the UMX from a PWM signal, put the input selection jumper on the UMX in the PW position. Set the operating mode
DIP switches (Tables 2 or 3) as required. Refer to the control sequence in Tables 4 through 7 for time base and control sequence
information.
Current/Voltage Input (ANA)
The UMX can be controlled from a current or voltage input. To operate in this mode, set the input selection jumpers on the UMX
as shown in Table 1. Set the operating mode DIP switches (See Tables 2 or 3) as required. Refer to the Control Sequence Tables
4 through 7 for time base and control sequence information.
DIP SWITCHES
PWM ANA L1 L2 HSL CSL SVT LVT 1 2 3 4
X X 0 0 1 0
X X 0 0 1 1
X X X X 1 0 0 0
X X X X 1 0 0 1
X X X X 1 0 1 0
X X X X 1 0 1 1
X X X X 1 1 0 0
X X X X 1 1 0 1
X X X X 1 1 1 0
X X X X 1 1 1 1
TABLE 3. DUAL UMX CONTROL
TABLE 1. CURRENT/VOLTAGE INPUT JUMPERS
Current/Voltage input 0-20 mA 0-5V 0-10V 0-15V
AN MA 5V 10V 15V
DIP SWITCHES
PWM ANA L1 L2 HSL CSL SVT LVT 1 2 3 4
X 0 0 0 1
X X X 0 1 0 0
X X X 0 1 0 1
X X X 0 1 1 0
X X X 0 1 1 1
TABLE 2. SINGLE UNIT UMX CONTROL
MULTI-FUNCTION INPUT / OUTPUT EXPANDER
UMX-4, UMX-8
OPERATION
OPERATING MODE (DIP SWITCHES 1, 2, 3, AND 4)