Index: firmware/App/Controllers/BloodFlow.c
===================================================================
diff -u -r22f7bcd7e26dc6be337fdb6adbc9281e8f60dbbc -r5217f70ca5c74bd586dc14540e6404b43feea004
--- firmware/App/Controllers/BloodFlow.c	(.../BloodFlow.c)	(revision 22f7bcd7e26dc6be337fdb6adbc9281e8f60dbbc)
+++ firmware/App/Controllers/BloodFlow.c	(.../BloodFlow.c)	(revision 5217f70ca5c74bd586dc14540e6404b43feea004)
@@ -46,8 +46,6 @@
 #define BP_CONTROL_INTERVAL                 ( 500 / TASK_GENERAL_INTERVAL ) // interval (ms/task time) at which the blood pump is controlled
 #define BP_P_COEFFICIENT                    0.0002          // P term for blood pump control
 #define BP_I_COEFFICIENT                    0.00002         // I term for blood pump control
-#define BP_MAX_ERROR_SUM                    10.0            // for anti-wind-up in I term
-#define BP_MIN_ERROR_SUM                   -10.0
 #define BP_MAX_PWM_DC_DELTA                 0.01            // prevents large steps in PWM duty cycle while controlling
 #define BP_MIN_PWM_DC_DELTA                -0.01
 
@@ -167,8 +165,7 @@
     // initialize blood flow PI controller
     initializePIController( PI_CONTROLLER_ID_BLOOD_FLOW, MIN_BLOOD_PUMP_PWM_DUTY_CYCLE,
                             BP_P_COEFFICIENT, BP_I_COEFFICIENT,
-                            MIN_BLOOD_PUMP_PWM_DUTY_CYCLE, MAX_BLOOD_PUMP_PWM_DUTY_CYCLE,
-                            BP_MIN_ERROR_SUM, BP_MAX_ERROR_SUM );
+                            MIN_BLOOD_PUMP_PWM_DUTY_CYCLE, MAX_BLOOD_PUMP_PWM_DUTY_CYCLE );
 }
 
 /*************************************************************************