EVCO c-pro micro SAVE - Manual (Page 9)

C-PRO MICRO SAVE APPLICATION MANUAL
Page 9
2.2.1 I/O configuration with 3-speed fans
c-Pro MICRO CAN with 2 A/O V+V (code CPU1S0C2V)
c-Pro EXP MICRO CAN with 2 A/O V+V (code CPUES0C2V)
I/O
Description
Analogue inputs
AI 1 Anti-freeze Temperature Probe (Recovery heat exchanger By-Pass) - NTC
AI 2 Supply Air Temperature Probe - NTC
AI 3 Return Air Temperature Probe - NTC
AI 4 CO
2
probe (0-5 V) (Optional)
AI 5 Outdoor Air Temperature Probe - NTC
AI 6 Not used
AI 7 Not used
AI 8 Not used
Serial ports
TTL (485) TTL with external interface EVIF becomes RS485 Modbus RTU
CAN bus To the EXP micro and/or Vgraph
Digital inputs
DI 1 Presence sensor
DI 2 Start – Stop (remote)
DI 3 Supply fan thermal overload (protection)
DI 4 Return fan thermal overload (protection)
DI 5 BY-Pass presence ( anti-freeze recovery heat exchanger)
DI 6 Differential pressure switch
DI 7 Hot water coil anti-freeze thermostat
DI 8 Electric heaters thermal overload
DI 9 Outside air damper limit switch (full open)
DI 10 Outside air damper limit switch (full closed)
Analogue outputs
AO 1 Not used
AO 2 Hot water coil modulating valve control (0-10 V)
AO 3* Recovery heat exchanger BY-PASS damper control (0-10 V)
AO 4 Not used
AO 5 Not used
AO 6 Not used
Digital Outputs (Relay)
DO 1 Return fan first speed
DO 2 Return fan second speed
DO 3 Return fan third speed
DO 4 Supply fan first speed
DO 5 Supply fan second speed
DO 6 Supply fan third speed
DO 7* Recovery heat exchanger BY-PASS damper
DO 8 Outside air damper
DO 9 Electric heaters step 1
DO 10 Electric heaters step 2
DO 11 Electric heaters step 3
DO 12 Generic alarm (can be configured)
(*) The control of the Recovery heat exchanger By-Pass damper can be digital or analogue, by setting the relevant
PG03 parameter.
RTC system clock - Real Time Clock: present on the user interface VGraph