Siemens FDCIO422 Addressable Input/Output Module

Introduction

The FDCIO422 is an addressable input/output module designed for connecting up to 2 independent Class A or 4 independent Class B dry Normally Open (N/O) configurable contacts. Input lines can be supervised for open, short, and ground fault conditions, depending on the End of Line (EOL) termination resistor and class configuration. Inputs can be independently configured via the fire control panel for alarm, trouble, status, or supervisory zones.

The FDCIO422 features 4 programmable outputs with 4 potential-free latching type Form A relay contacts suitable for fire control installations. Status indication is provided by LEDs for each input and output, plus a general status LED for the device. Power is supplied via FDnet, which is a supervised power-limited network.

The module includes 4 EOL devices (470 Ω) and 3 separators to isolate power-limited wiring from non-power-limited wiring. These separators are provided in three sizes for standard 4 11/16-inch boxes, 4 11/16-inch extension rings, and 5-inch boxes (RANDL).

The FDCIO422 supports two operation modes: polarity insensitive mode and isolator mode. The module can be wired for either mode. In isolator mode, the built-in dual isolators function on both sides of the module to isolate line shorts occurring in front of or behind the module.

⚠️ CAUTION: Electric shock! High voltages may be present on the terminals. Always use a faceplate and the separator(s).

⚠️ CAUTION: This device is not intended for applications in explosive environments.

Note: Class A/X (UL) is equivalent to DCLA (ULC), and Class B is equivalent to DCLB (ULC).

For complete configuration and commissioning of the FDCIO422, refer to the user documentation of your panel and the software tool used for configuration.

Programming Instructions

ℹ️ NOTICE: To prevent potential damage to the DPU (refer to manual P/N 315-033260) or the 8720 (refer to manual P/N 315-033260FA), do not connect a FDCIO422 to the DPU or 8720 until the cage is removed from the carrier (Figure 2).

Refer to Figure 3 to locate the opening on the cage cover that provides access to the programming holes on the FDCIO422 printed circuit board. To connect the FDCIO422 to the DPU or 8720 Programmer/Tester, insert the plug from the DPU/8720 cable into the opening on the front of the FDCIO422. Ensure the locating tab on the plug aligns with the slot for the locating tab, as shown in Figure 3. The minimum firmware revision for the DPU must be 9.00.0004, and for the 8720, it must be 5.02.0002.

Module Status LED

* LED can be turned off. Please follow the corresponding description of the Panel used.

Wiring

Refer to Figure 11 for the appropriate wiring diagram and wire the addressable input/output module accordingly.

Recommended wire size: 18 AWG minimum and 14 AWG maximum. Wire larger than 14 AWG can damage the connector.

Follow the instructions in the DPU manual or 8720 manual to program the FDCIO422 to the desired address. Record the device address on the label located on the front of the module. The FDCIO422 can now be installed and wired to the system.

Input Notes:

• There can be any number of normally open dry contact switches.
• The end of line device must be located at the last switch.
• Do not wire a normally closed switch across the end of line device in a normally open wiring.
• Multiple switches: for open wiring supervision only.

Power Limited Wiring

In compliance with NEC Article 760, all power-limited fire protective signaling conductors must be separated a minimum of 1½ inch from electric light, power, Class 1, or non-power-limited fire protective signaling conductors located within an outlet box.

If non-power-limited wiring is not used within the outlet box, these guidelines do not apply, and standard wiring practices should be followed.

Wiring Entering Outlet Box

All power-limited wiring must enter the outlet box separately from electric light, power, Class 1, or non-power-limited fire protection signaling conductors. For the FDCIO422, wiring to the terminal block for the line and inputs must enter the outlet box separately from the terminals for outputs. Fuse protection is recommended for the output terminals, depending on the application. Refer to Figures 6 and 8.

Wiring at the Terminal Blocks: Minimize the length of wire entering the outlet box.

Separators

Separators must be used when relay contacts are connected to non-power-limited lines. Mount the correct separator in the box used (4 11/16-inch box and 5-inch box). If an extension ring is used with a 4 11/16-inch square box, an additional separator must be mounted in the extension ring. The separators create two compartments to separate the wires, as shown in Figure 5.

Mounting

The FDCIO422 input/output module can be mounted directly into a 4 11/16-inch square box or a 5-inch square box. An additional extension ring can be mounted on the 4 11/16-inch square box using two screws. For mounting in a 5-inch square box, use a 4 11/16-inch adapter plate.

Fasten the module to the square box with the 4 screws provided with the box. Fasten the faceplate onto the carrier using the 2 screws provided with the FDCIO422.

Important: Be sure to program the FDCIO422 before fastening the faceplate to the unit.

⚠️ WARNING: It is not allowed to use the module without the faceplate. Remove the faceplate for service and maintenance reasons only!

Volume Allowance FDCIO422

The FDCIO422 has a volume of 11.7 cubic inches and supports a maximum of 20 conductors. Consult NFPA 70, National Electric Code Section 314.16 (Number of Conductors in Outlet, Device and Junction Boxes, and Conduit), Table 314.16(A) and (B), to select the correct metal box (4 11/16-inch square box, 4 11/16-inch square box with extension ring, or 5-inch square box).

Technical Data

¹⁾ 2 coil latching type, dry contact, Form A.

²⁾ Average charge current of the device. 1 Load Unit (LU) equals to 250 μA.

Line Wiring

ℹ️ NOTICE: Ensure that the panel supports Isolator mode for the FDCIO422 product version 30. Isolator mode must not be used with an FDCIO422 product version less than 30. The product version number is located on the label.

Wiring Notes:

1. All supervised switches must be held closed and/or open for at least 0.25 s to guarantee detection (depending on filter time).
2. End of line device: 470 Ω ± 1%, ½ W resistor, delivered with the device (4x).
3. The inputs must be wired potential-free.
4. When the FDCIO422 is wired in polarity insensitive mode, Line -6 and -5 can be either line of the loop.
5. When the FDCIO422 is wired for isolator mode, the positive line needs to be connected to 1b and the negative line to 6. The next device needs to be connected to 1b and 5. The Line Isolator is located between connector 6 and 5.
6. Electrical ratings: FDnet voltage maximum: DC 32 V; Absolute maximum peak current: 1.92 mA.
7. Supervised switch ratings: Monitoring voltage: 3 V; Cable length input: Max. 200 ft; Input shielding recommended for cable lengths from: 30 ft-200 ft; Max. C_{Line to line}: 0.02 μF; Max. C_{Line to shield}: 0.04 μF; Max. line size: 14 AWG; Min. line size: 18 AWG.
8. The operating current must never exceed the rated current.
9. As the outputs are not supervised by the module, use external supervision for critical applications.
10. Choose the correct AWG size for the intended operating current.
11. Connect incoming and outgoing shields together in an acceptable manner. Insulate shields; do not make any connections to the device or back box.
12. Use shielded and/or twisted wire to connect the switch wiring and keep the wiring as short as possible.
13. Tie the switch wiring shield to the local earth ground (at only one end, refer to Figure 9). For multiple switches on the same input, connect incoming and outgoing shields together in an acceptable manner. Insulate shields; do not make any connections to the device or back box.
14. Positive and negative ground fault detected at <25 kΩ for inputs 1 – 4.
15. Relay contact ratings: Cable length output: Max. 200 ft.

Current Ratings

Define intended maximum ambient temperature (77 °F, 100 °F, 120 °F) and maximum power factor from the load. Then find correlated possible maximum current ratings in the table below:

^* 4x Out: A,B,C,D; 2x Out: B,C; 1x Out: C; use only indicated outputs. PF 0.6 (60 Hz) = L/R max. 3.5 ms. PF 0.35 (60 Hz) = L/R max. 7.1 ms = max. ind. Load at any case.

ℹ️ NOTICE: AC ratings must not be used with modules with product version <10. You will find the product version number on the label.

Diagnostics

Indication

• Normal, no fault is present: Input/Output module is fully functional.
• Fault is present: Error with the input circuitry (open line, short circuit, deviation).
• Invalid parameter settings
• Supply error
• Software error (Watchdog error)
• Storage error
• Communication error between device and control panel

Actions

• None
• Checking the input circuitry (parameter setting, resistors, short-circuit, open line).
• Check the parameter setting.
• Check detector line voltage.
• Replace device.
• Replace device.
• Replace device.
• Remedy cause.

Note: Any general message can be displayed together with another status.

Configuring the Outputs

To configure the outputs, proceed as follows:

1. Determine in which position the contact is active. The contact can be active when it is:
   • Closed (normally open, NO)
   • Open (normally closed, NC)
2. After activating, the contact remains:
   • Permanently active.
   • Active only for a certain period of time. The duration can be configured (pulse duration). This is used for applications like resetting the four-wire device F5000 Reflective Beam Smoke Detector, P/N 500-050261. The following settings are possible: 10 s, 15 s, 20 s.
3. Determine the behavior of the output in case of an error on the communication line (open line to the control panel, FDCIO422 power failure). The following configurations are possible for behavior in case of failure (default positions):
   • Output position remains the same as before the error.
   • Output is activated.
   • Output is deactivated.

Configuring the Inputs

For configuring the inputs, proceed as follows:

1. Configure the inputs as 4 Class B (DCLB) or 2 Class A (DCLA).
2. Define the type of input (danger input or status input):
   • Status input: triggers status change.
   • Danger input: triggers alarm.
3. Determine the type of monitoring and the monitoring resistors (refer to Figure 10):
   • Class A only open: no EOL.
   • Class B only open: Rp 470 Ω.
   • Class B open and short: Rs 100 Ω and Rp 470 Ω.
4. Define the input filter time. The following settings are possible: 0.25 s, 0.5 s, 1 s.

The configuration of the input must correspond to the actual wiring. An EOL must terminate all unused inputs.

ℹ️ NOTICE: Follow the instructions in the corresponding panel manual for programming the FDCIO422 properly: P/N A6V10333724 and P/N A6V10336897.

The 2x Class A inputs are identified by the panel as Input 1 and Input 2. Class A and Class B cannot be configured at the same time (use 2x Class A or 4x Class B).

In the device line, up to 30 compatible devices can be isolated between two modules in isolator mode in a Class A Style 6 wiring, with a maximum line resistance of 20 ohms. In the device line, up to 30 compatible devices can be isolated behind one module in isolator mode in a Class B Style 4 wiring, with a maximum line resistance of 20 ohms.

HLIM isolator module and SBGA-34 sounder base cannot be used in the same loop with the modules in isolator mode.

End of Line Resistor Wiring Overview

⚠️ CAUTION: FOR SYSTEM SUPERVISION – FOR TERMINALS IDENTIFIED WITH A ? DO NOT USE LOOPED WIRE TERMINALS. BREAK WIRE RUN TO PROVIDE SUPERVISION OF CONNECTIONS.

Use Siemens TB-EOL terminal P/N S54322-F4-A2 or equivalent.

Use only normally open dry contact SWITCHES for the inputs.

General Switch Requirements:

• Use a 4 or 2 pole UL/ULC recognized SWITCH.
• Switch terminals must be capable of accommodating two conductors.
• EOL Resistor wiring must be done according to UL 864 and ULC-S527, chapter 'EOL Devices'.
• The EOL Resistors must be connected at the end of the input lines.
• No addressable device or 2-wire smoke detectors can be connected to the inputs.

Accessories

Siemens Industry, Inc.
Smart Infrastructure
8, Fernwood Road
Florham Park, New Jersey 07932
www.siemens.com/buildingtechnologies

Siemens Canada Limited
Smart Infrastructure
2 Kenview Boulevard
Brampton, Ontario L6T 5E4 Canada

© Siemens Industry, Inc. 2012-2016. Data and design subject to change without notice.