Page 5 - Table of Contents
Table of Contents • v Table of Contents 1 INTRODUCTION.......................................................................................................................................................... 1 1.1. G ENERAL W ARNING .....................................................................
Page 7 - Introduction
General Warning Introduction • 1 1 Introduction 1.1. General Warning Please read the following safety precautions and warnings before using this manual: 2 Overview 2.1. General Description Model XR35CX (32 mm x 74 mm) is a digital thermostat with off-cycle defrost, designed for refrig- eration appli...
Page 8 - Controlling Loads
2 • XR35CX I&O Manual 026-1203 Rev 0 09-FEB-2011 3 Controlling Loads 3.1. Compressor The regulation is performed according to the tem- perature measured by the thermostat probe with a pos- itive differential from the setpoint: if the temperature increases and reaches setpoint plus the differenti...
Page 9 - ing Energy Saving Cycles
Second Relay Configuration (PAR. oA1; TERM. 1-7) Controlling Loads • 3 3.3.5. Neutral Zone Regulation With oA1 = db , relay 1-7 can control a heater ele- ment to perform a neutral zone action. • oA1 cut in = SEt - Hy • oA1 cut out = SEt 3.3.6. Alarm Relay With oA1 = ALr , the relay 1-7 operates as a...
Page 10 - Front Panel
4 • XR35CX I&O Manual 026-1203 Rev 0 09-FEB-2011 4 Front Panel Commands 4.1. Keys and Functions Table 4-1 shows the keys that are found on the front panel of the XR35CX controller and their corre- sponding functions: 4.2. Use of LEDS Each LED function is described in Table 4-2 : Figure 4-1 - XR3...
Page 11 - MAX and MIN; Temperature
How to See the MIN Temperature MAX and MIN Temperature Memorization • 5 5 MAX and MIN Temperature Memorization 5.1. How to See the MIN Temperature 1. Press and release the DOWN arrow key.2. The Lo message will be displayed followed by the minimum temperature recorded. 3. By pressing the DOWN arrow k...
Page 12 - Main Functions; Setpoint; DEF; Parameter Value
6 • XR35CX I&O Manual 026-1203 Rev 0 09-FEB-2011 6 Main Functions 6.1. To Set the Current Time and Day (Only for Controllers with RTC) When the controller is switched ON, it is neces- sary to program the time and day. 1. Enter the Pr1 programming menu by pressing the SET + DOWN arrow keys combin...
Page 13 - Menu; from the Hidden Menu to the; MODBUS Address; Keyboard
How to Assign a MODBUS Address Main Functions • 7 Menu 1. Enter the Programming mode by pressing the SET + DOWN arrow keys for 3 seconds (the °C or °F LED starts blinking). 2. Immediately release the keys, then push the SET + DOWN arrow keys again for more than 7 seconds. The Pr2 label will be displ...
Page 20 - Digital Inputs
14 • XR35CX I&O Manual 026-1203 Rev 0 09-FEB-2011 8 Digital Inputs The first digital input 18-20 is enabled with P3P = n . With P3P = n and i1F = i2F , the second digital in- put is disabled. The free voltage digital inputs are pro- grammable by the i1F and i2F parameters. 8.1. Generic Alarm (i2...
Page 23 - 1 Installation and
Probe Connection Installation and Mounting • 17 11 Installation and Mounting The XR35CX controller should be mounted on a vertical panel, in a 29 x 71 mm hole, and secured us- ing the special bracket supplied. The temperature range allowed for correct opera- tion is 0 to 60°C. Avoid places subject t...
Page 25 - 4 Alarm Signals; Alarm Relay Output
Silencing Buzzer / Alarm Relay Output Alarm Signals • 19 14 Alarm Signals 14.1. Silencing Buzzer / Alarm Relay Output If tbA = y , the buzzer and the relay are silenced by pressing any key. If tbA = n , only the buzzer is silenced while the alarm relay is ON until the alarm condition recovers. 14.2....
Page 26 - 5 Specifications
20 • XR35CX I&O Manual 026-1203 Rev 0 09-FEB-2011 15 Specifications Housing Self extinguishing ABS Dimensions Case: Front : 32 mm x 74 mm Depth : 60 mm Panel Mount: 71 mm x 29 mm panel cut-out Protection IP 20Frontal: IP65 Connections Screw terminal block ≤ 2.5 mm 2 wiring Power Supply (dependin...
Page 27 - 6 Connections
Other Messages Connections • 21 16 Connections • Supply : 120VAC or 24 VAC : connect to terminals 5-6. • The X-REP output is optional. Figure 16-1 - XR35CX Connections
Page 28 - 7 E2 MODBUS Network Wiring
22 • XR35CX I&O Manual 026-1203 Rev 0 09-FEB-2011 17 E2 MODBUS Network Wiring • Connect the MODBUS Network to the RS485 Connector on the E2 PIB board (Belden 8641 recommended).• Note to wire the RS485 +/- polarity at the E2 in the reverse of the XR35CX devices. • Position the three termination j...
Page 29 - 8 ECT MODBUS; Serial; E2 PIB COM PORT ASSOCIATIONS
E2 Setup of Devices ECT MODBUS Networking to E2s • 23 18 ECT MODBUS Networking to E2s Connecting a XR35CX controller to an E2 re- quires the E2 to be version 2. 84 or above. Contact Re- tail Solutions for upgrade information if the controller is a version before 2. 84 . An E2 has up to three COM por...
Page 32 - Blocks
26 • XR35CX I&O Manual 026-1203 Rev 0 09-FEB-2011 18.2. Wiring Types Retail Solutions specifies Belden #8761 shielded twisted pair cables for use as MODBUS wiring (or Belden #82761 and Belden #88761 for plenum instal- lations). For MODBUS network wiring of XR35CX con- trollers to E2, Belden #864...
Page 33 - 9 Default Setting Values
MODBUS Termination Blocks Default Setting Values • 27 19 Default Setting Values Label Name Range Value Level SEt Setpoint LS to US 3.0 --- rtc* Real time clock menu --- --- Pr1 Hy Differential 0.1 to 25.5°C/ 1 to 255°F 2.0 Pr1 LS Minimum setpoint -100°C to SEt /-58°F to SEt -50.0 Pr2 US Maximum setp...