UE20 Digital Output Modules | 8 and 16 Channels

UE20 Eight Channel Spring Terminal Output Module

Series Part Number

Part Number:	UE20	-	16	DO	-	P
Explanation:	Platform UE20 - UE20 spring-terminal expansion module platform		Channels 8 - 8 channels 16 - 16 channels	Function DO - Digital output		Output Polarity N - NPN sinking, active low P - PNP sourcing, active high; both channel counts are listed for each polarity

Description

Digital output module selection

UE20 digital output modules control 24VDC loads through NPN sinking or PNP sourcing outputs. Choose the output polarity and channel count for the connected actuators, relays, contactors or solenoid valves. Each module uses screwless spring terminals and occupies 12mm on a 35mm DIN rail. Select a coupler and expansion arrangement for the UE20 platform.

Model	Channels	Output type	Active electrical level	Process data	Bus current at 5VDC
UE20-8DO-N	8	NPN sinking	Low	1 byte	66mA typical
UE20-8DO-P	8	PNP sourcing	High	1 byte	66mA typical
UE20-16DO-N	16	NPN sinking	Low	2 bytes	106mA typical
UE20-16DO-P	16	PNP sourcing	High	2 bytes	106mA typical

Supply and signal states

Parameter	All four models
Internal bus input	5VDC nominal; 4.75-5.25VDC
Working-voltage specification	24VDC, +20%/−15%
Output-circuit voltage grade	24VDC ±10%; 21.6-26.4VDC
System-side electrical isolation	500VAC
Isolation method	Optical isolation
Reverse-polarity protection	Supported
Output protection	Short-circuit and overcurrent protection
Module fault diagnosis	Provided; individual output-channel diagnostic functions are listed separately below

Output type	Inactive state, 0/OFF	Active state, 1/ON
NPN: UE20-8DO-N and UE20-16DO-N	24VDC, ±25%	Nominal 0VDC; ±3% tolerance with unspecified reference quantity
PNP: UE20-8DO-P and UE20-16DO-P	Nominal 0VDC; ±3% tolerance with unspecified reference quantity	24VDC, ±25%

The percentage reference for the low-level ±3% tolerance is unspecified, so it does not establish an absolute low-level voltage limit. Signal-state voltage, working supply voltage and output-circuit voltage grade describe separate conditions.

Output load limits

Apply both the per-channel and per-module limits. The 16-channel NPN and PNP models have different total resistive and inductive load ratings.

Models	Load type	Per-channel limit	Per-module limit	Switching frequency
UE20-8DO-N and UE20-8DO-P	Resistive	0.5A	2A	100Hz
	Inductive	7.2W	7.2W	0.5Hz
	Lamp	5W	5W	10Hz
UE20-16DO-N	Resistive	0.5A	4A	100Hz
	Inductive	7.2W	24W	0.5Hz
	Lamp	5W	18W	10Hz
UE20-16DO-P	Resistive	0.5A	2A	100Hz
	Inductive	7.2W	12W	0.5Hz
	Lamp	5W	18W	10Hz

Models	Operation at 55°C	All outputs active
Both 8-channel models	50% output derating; combined simultaneously active output current no more than 0.5A	Apply a 10°C temperature derating
Both 16-channel models	50% output derating; combined simultaneously active output current no more than 1A	Apply a 10°C temperature derating

Connections and mechanical installation

Models	Conductor cross-section	Separate AWG specification	Strip length
UE20-8DO-N and UE20-8DO-P	0.2-2.5mm²	28-14AWG	8-9mm
UE20-16DO-N and UE20-16DO-P	0.2-1.5mm²	28-16AWG	8-9mm

The metric and AWG entries are separate declared ranges, not point-for-point conversions. Spring terminals permit direct insertion of solid conductors.

Property	All models
Connection arrangement	1-line, screwless spring terminals
Height × width × depth	100 × 12 × 68mm
Mounting	35mm DIN rail
Protection rating	IP20

Hardware feature	Function
Grounding spring contact	Ground connection through the 35mm DIN rail
Field-power contacts	Two metal clips supply the field loads
Latch	Secures the module to the DIN rail
Signal terminals	Connect the output signals
Internal bus connection	Carries bus power and signals
Channel indicators	Show the state of each output
Module label	Identifies the I/O module function

Terminal assignment and load wiring

For NPN models, connect each load between the positive field supply and its output terminal. For PNP models, connect each load between its output terminal and the 0VDC return. Terminals are numbered from 1, while process-data channel numbers start at 0.

Applies to	Left signal	Left terminal	Right terminal	Right signal
All models	Output 1	1	2	Output 2
	Output 3	3	4	Output 4
	Output 5	5	6	Output 6
	Output 7	7	8	Output 8
16-channel models only	Output 9	9	10	Output 10
	Output 11	11	12	Output 12
	Output 13	13	14	Output 14
	Output 15	15	16	Output 16

Insulated ferrule	Conductor cross-section	Ferrule length L
E0310	0.3mm²	10mm
E0510	0.5mm²
E7510	0.75mm²
E1010	1.0mm²
E1510	1.5mm²

Indicators and process data

Models	Indicator labels	Colour and state	Meaning
8-channel models	1-8	Green on / off	Corresponding output active / inactive
16-channel models	1-16	Green on / off	Corresponding output active / inactive

Output data	Bit 7	Bit 6	Bit 5	Bit 4	Bit 3	Bit 2	Bit 1	Bit 0
Byte 0, all models	Channel 7	Channel 6	Channel 5	Channel 4	Channel 3	Channel 2	Channel 1	Channel 0
Byte 1, 16-channel models only	Channel 15	Channel 14	Channel 13	Channel 12	Channel 11	Channel 10	Channel 9	Channel 8

Bit value 1 activates the corresponding output: low electrical level for NPN or high electrical level for PNP. Bit value 0 makes the output inactive.

Software function	Behaviour
Fault-stop output state	Retain the current value
Output-port abnormality detection and indication	Not provided
Configurable output logic level	Not supported
Independent channel-enable configuration	Not supported
Configurable diagnostic reporting	Not supported
Stopped mode	Follow the fault-stop state mode and preset value; no further refresh
I/O mapping access	Bit, byte and word access

Environment and immunity

Parameter	All models
Operating temperature	-20°C to +60°C, subject to output derating
Storage temperature	-20°C to +60°C
Operating humidity	<95%RH, non-condensing
Storage humidity	<90%RH, non-condensing
Atmosphere	No corrosive gases
Altitude	Below 2000m; 80kPa reference
Pollution degree	2
Overvoltage category	II
Power-line immunity	2kV, IEC 61000-4-4
EMC environment	Zone B, IEC 61131-2
Vibration	IEC 60068-2-6: 5-8.4Hz at 3.5mm amplitude; 8.4-150Hz at 9.8m/s²; X, Y and Z axes, 100 minutes per axis in ten 10-minute cycles
Shock	IEC 60068-2-27: 9.8m/s², 11ms; three shocks in each of six directions across the X, Y and Z axes

Additional rating information

UL use group	Rated current	Rated voltage	Rated cross-section
B	Not specified	Not specified	Not specified
C
D

UE20 NPN and PNP Digital Output Modules